diff --git a/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus
index c2a270b..833fd59 100644
--- a/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus
+++ b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus
@@ -8,3 +8,41 @@
 		When written, this file sets the number of the startup profile
 		and the mouse activates this profile immediately.
 		Please use actual_profile, it does the same thing.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/firmware_version
+Date:		October 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When read, this file returns the raw integer version number of the
+		firmware reported by the mouse. Using the integer value eases
+		further usage in other programs. To receive the real version
+		number the decimal point has to be shifted 2 positions to the
+		left. E.g. a returned value of 121 means 1.21
+		This file is readonly.
+		Please read binary attribute info which contains firmware version.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/profile[1-5]_buttons
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The mouse can store 5 profiles which can be switched by the
+		press of a button. A profile is split in settings and buttons.
+		profile_buttons holds information about button layout.
+		When read, these files return the respective profile buttons.
+		The returned data is 77 bytes in size.
+		This file is readonly.
+		Write control to select profile and read profile_buttons instead.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/profile[1-5]_settings
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The mouse can store 5 profiles which can be switched by the
+		press of a button. A profile is split in settings and buttons.
+		profile_settings holds information like resolution, sensitivity
+		and light effects.
+		When read, these files return the respective profile settings.
+		The returned data is 43 bytes in size.
+		This file is readonly.
+		Write control to select profile and read profile_settings instead.
+Users:		http://roccat.sourceforge.net
\ No newline at end of file
diff --git a/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-kovaplus b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-kovaplus
new file mode 100644
index 0000000..4a98e02
--- /dev/null
+++ b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-kovaplus
@@ -0,0 +1,66 @@
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_cpi
+Date:		January 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The integer value of this attribute ranges from 1-4.
+		When read, this attribute returns the number of the active
+		cpi level.
+		This file is readonly.
+		Has never been used. If bookkeeping is done, it's done in userland tools.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_sensitivity_x
+Date:		January 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The integer value of this attribute ranges from 1-10.
+		When read, this attribute returns the number of the actual
+		sensitivity in x direction.
+		This file is readonly.
+		Has never been used. If bookkeeping is done, it's done in userland tools.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_sensitivity_y
+Date:		January 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The integer value of this attribute ranges from 1-10.
+		When read, this attribute returns the number of the actual
+		sensitivity in y direction.
+		This file is readonly.
+		Has never been used. If bookkeeping is done, it's done in userland tools.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/firmware_version
+Date:		January 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When read, this file returns the raw integer version number of the
+		firmware reported by the mouse. Using the integer value eases
+		further usage in other programs. To receive the real version
+		number the decimal point has to be shifted 2 positions to the
+		left. E.g. a returned value of 121 means 1.21
+		This file is readonly.
+		Obsoleted by binary sysfs attribute "info".
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile[1-5]_buttons
+Date:		January 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The mouse can store 5 profiles which can be switched by the
+		press of a button. A profile is split in settings and buttons.
+		profile_buttons holds information about button layout.
+		When read, these files return the respective profile buttons.
+		The returned data is 23 bytes in size.
+		This file is readonly.
+		Write control to select profile and read profile_buttons instead.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile[1-5]_settings
+Date:		January 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The mouse can store 5 profiles which can be switched by the
+		press of a button. A profile is split in settings and buttons.
+		profile_settings holds information like resolution, sensitivity
+		and light effects.
+		When read, these files return the respective profile settings.
+		The returned data is 16 bytes in size.
+		This file is readonly.
+		Write control to select profile and read profile_settings instead.
+Users:		http://roccat.sourceforge.net
diff --git a/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-pyra b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-pyra
new file mode 100644
index 0000000..87ac87e
--- /dev/null
+++ b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-pyra
@@ -0,0 +1,73 @@
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_cpi
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	It is possible to switch the cpi setting of the mouse with the
+		press of a button.
+		When read, this file returns the raw number of the actual cpi
+		setting reported by the mouse. This number has to be further
+		processed to receive the real dpi value.
+
+		VALUE DPI
+		1     400
+		2     800
+		4     1600
+
+		This file is readonly.
+		Has never been used. If bookkeeping is done, it's done in userland tools.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_profile
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When read, this file returns the number of the actual profile in
+		range 0-4.
+		This file is readonly.
+		Please use binary attribute "settings" which provides this information.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/firmware_version
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When read, this file returns the raw integer version number of the
+		firmware reported by the mouse. Using the integer value eases
+		further usage in other programs. To receive the real version
+		number the decimal point has to be shifted 2 positions to the
+		left. E.g. a returned value of 138 means 1.38
+		This file is readonly.
+		Please use binary attribute "info" which provides this information.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile[1-5]_buttons
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The mouse can store 5 profiles which can be switched by the
+		press of a button. A profile is split in settings and buttons.
+		profile_buttons holds information about button layout.
+		When read, these files return the respective profile buttons.
+		The returned data is 19 bytes in size.
+		This file is readonly.
+		Write control to select profile and read profile_buttons instead.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile[1-5]_settings
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The mouse can store 5 profiles which can be switched by the
+		press of a button. A profile is split in settings and buttons.
+		profile_settings holds information like resolution, sensitivity
+		and light effects.
+		When read, these files return the respective profile settings.
+		The returned data is 13 bytes in size.
+		This file is readonly.
+		Write control to select profile and read profile_settings instead.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/startup_profile
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The integer value of this attribute ranges from 0-4.
+                When read, this attribute returns the number of the profile
+                that's active when the mouse is powered on.
+		This file is readonly.
+		Please use binary attribute "settings" which provides this information.
+Users:		http://roccat.sourceforge.net
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku b/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku
index 189dc43..9eca5a1 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku
@@ -117,6 +117,14 @@
 		which profile and key to read.
 Users:		http://roccat.sourceforge.net
 
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/reset
+Date:		November 2012
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one reset the device.
+		The data has to be 3 bytes long.
+		This file is writeonly.
+Users:		http://roccat.sourceforge.net
+
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/control
 Date:		June 2011
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
index 65e6e5d..7bd776f 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
@@ -9,15 +9,12 @@
 		and the mouse activates this profile immediately.
 Users:		http://roccat.sourceforge.net
 
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/firmware_version
-Date:		October 2010
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/info
+Date:		November 2012
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	When read, this file returns the raw integer version number of the
-		firmware reported by the mouse. Using the integer value eases
-		further usage in other programs. To receive the real version
-		number the decimal point has to be shifted 2 positions to the
-		left. E.g. a returned value of 121 means 1.21
-		This file is readonly.
+Description:	When read, this file returns general data like firmware version.
+		When written, the device can be reset.
+		The data is 8 bytes long.
 Users:		http://roccat.sourceforge.net
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/macro
@@ -42,18 +39,8 @@
 		The mouse will reject invalid data.
 		Which profile to write is determined by the profile number
 		contained in the data.
-		This file is writeonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/profile[1-5]_buttons
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The mouse can store 5 profiles which can be switched by the
-		press of a button. A profile is split in settings and buttons.
-		profile_buttons holds information about button layout.
-		When read, these files return the respective profile buttons.
-		The returned data is 77 bytes in size.
-		This file is readonly.
+		Before reading this file, control has to be written to select
+		which profile to read.
 Users:		http://roccat.sourceforge.net
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/profile_settings
@@ -68,19 +55,8 @@
 		The mouse will reject invalid data.
 		Which profile to write is determined by the profile number
 		contained in the data.
-		This file is writeonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/profile[1-5]_settings
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The mouse can store 5 profiles which can be switched by the
-		press of a button. A profile is split in settings and buttons.
-		profile_settings holds information like resolution, sensitivity
-		and light effects.
-		When read, these files return the respective profile settings.
-		The returned data is 43 bytes in size.
-		This file is readonly.
+		Before reading this file, control has to be written to select
+		which profile to read.
 Users:		http://roccat.sourceforge.net
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/sensor
@@ -104,9 +80,9 @@
 Date:		October 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	When written a calibration process for the tracking control unit
-		can be initiated/cancelled.
-		The data has to be 3 bytes long.
-		This file is writeonly.
+		can be initiated/cancelled. Also lets one read/write sensor
+		registers.
+		The data has to be 4 bytes long.
 Users:		http://roccat.sourceforge.net
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/tcu_image
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus
index 20f937c..a10404f 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kovaplus
@@ -1,12 +1,3 @@
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_cpi
-Date:		January 2011
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The integer value of this attribute ranges from 1-4.
-		When read, this attribute returns the number of the active
-		cpi level.
-		This file is readonly.
-Users:		http://roccat.sourceforge.net
-
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_profile
 Date:		January 2011
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
@@ -18,33 +9,12 @@
 		active when the mouse is powered on.
 Users:		http://roccat.sourceforge.net
 
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_sensitivity_x
-Date:		January 2011
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/info
+Date:		November 2012
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The integer value of this attribute ranges from 1-10.
-		When read, this attribute returns the number of the actual
-		sensitivity in x direction.
-		This file is readonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/actual_sensitivity_y
-Date:		January 2011
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The integer value of this attribute ranges from 1-10.
-		When read, this attribute returns the number of the actual
-		sensitivity in y direction.
-		This file is readonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/firmware_version
-Date:		January 2011
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	When read, this file returns the raw integer version number of the
-		firmware reported by the mouse. Using the integer value eases
-		further usage in other programs. To receive the real version
-		number the decimal point has to be shifted 2 positions to the
-		left. E.g. a returned value of 121 means 1.21
-		This file is readonly.
+Description:	When read, this file returns general data like firmware version.
+		When written, the device can be reset.
+		The data is 6 bytes long.
 Users:		http://roccat.sourceforge.net
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile_buttons
@@ -58,18 +28,8 @@
 		The mouse will reject invalid data.
 		Which profile to write is determined by the profile number
 		contained in the data.
-		This file is writeonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile[1-5]_buttons
-Date:		January 2011
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The mouse can store 5 profiles which can be switched by the
-		press of a button. A profile is split in settings and buttons.
-		profile_buttons holds information about button layout.
-		When read, these files return the respective profile buttons.
-		The returned data is 23 bytes in size.
-		This file is readonly.
+		Before reading this file, control has to be written to select
+		which profile to read.
 Users:		http://roccat.sourceforge.net
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile_settings
@@ -84,17 +44,6 @@
 		The mouse will reject invalid data.
 		Which profile to write is determined by the profile number
 		contained in the data.
-		This file is writeonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/kovaplus/roccatkovaplus<minor>/profile[1-5]_settings
-Date:		January 2011
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The mouse can store 5 profiles which can be switched by the
-		press of a button. A profile is split in settings and buttons.
-		profile_settings holds information like resolution, sensitivity
-		and light effects.
-		When read, these files return the respective profile settings.
-		The returned data is 16 bytes in size.
-		This file is readonly.
+		Before reading this file, control has to be written to select
+		which profile to read.
 Users:		http://roccat.sourceforge.net
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-lua b/Documentation/ABI/testing/sysfs-driver-hid-roccat-lua
new file mode 100644
index 0000000..31c6c4c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-lua
@@ -0,0 +1,7 @@
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/control
+Date:		October 2012
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, cpi, button and light settings can be configured.
+		When read, actual cpi setting and sensor data are returned.
+		The data has to be 8 bytes long.
+Users:		http://roccat.sourceforge.net
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra b/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra
index 3f8de50..9fa9de3 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra
@@ -1,37 +1,9 @@
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_cpi
-Date:		August 2010
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/info
+Date:		November 2012
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	It is possible to switch the cpi setting of the mouse with the
-		press of a button.
-		When read, this file returns the raw number of the actual cpi
-		setting reported by the mouse. This number has to be further
-		processed to receive the real dpi value.
-
-		VALUE DPI
-		1     400
-		2     800
-		4     1600
-
-		This file is readonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_profile
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	When read, this file returns the number of the actual profile in
-		range 0-4.
-		This file is readonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/firmware_version
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	When read, this file returns the raw integer version number of the
-		firmware reported by the mouse. Using the integer value eases
-		further usage in other programs. To receive the real version
-		number the decimal point has to be shifted 2 positions to the
-		left. E.g. a returned value of 138 means 1.38
-		This file is readonly.
+Description:	When read, this file returns general data like firmware version.
+		When written, the device can be reset.
+		The data is 6 bytes long.
 Users:		http://roccat.sourceforge.net
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile_settings
@@ -46,19 +18,8 @@
 		The mouse will reject invalid data.
 		Which profile to write is determined by the profile number
 		contained in the data.
-		This file is writeonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile[1-5]_settings
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The mouse can store 5 profiles which can be switched by the
-		press of a button. A profile is split in settings and buttons.
-		profile_settings holds information like resolution, sensitivity
-		and light effects.
-		When read, these files return the respective profile settings.
-		The returned data is 13 bytes in size.
-		This file is readonly.
+		Before reading this file, control has to be written to select
+		which profile to read.
 Users:		http://roccat.sourceforge.net
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile_buttons
@@ -72,27 +33,8 @@
 		The mouse will reject invalid data.
 		Which profile to write is determined by the profile number
 		contained in the data.
-		This file is writeonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile[1-5]_buttons
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The mouse can store 5 profiles which can be switched by the
-		press of a button. A profile is split in settings and buttons.
-		profile_buttons holds information about button layout.
-		When read, these files return the respective profile buttons.
-		The returned data is 19 bytes in size.
-		This file is readonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/startup_profile
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The integer value of this attribute ranges from 0-4.
-                When read, this attribute returns the number of the profile
-                that's active when the mouse is powered on.
-		This file is readonly.
+		Before reading this file, control has to be written to select
+		which profile to read.
 Users:		http://roccat.sourceforge.net
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/settings
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu b/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu
index b42922c..f1e02a9 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu
@@ -40,8 +40,8 @@
 Date:		Mai 2012
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
 Description:	When read, this file returns general data like firmware version.
+		When written, the device can be reset.
 		The data is 8 bytes long.
-		This file is readonly.
 Users:		http://roccat.sourceforge.net
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/savu/roccatsavu<minor>/macro
@@ -74,4 +74,3 @@
 		This file allows reading and writing of the mouse sensors registers.
 		The data has to be 4 bytes long.
 Users:		http://roccat.sourceforge.net
-
diff --git a/Documentation/input/event-codes.txt b/Documentation/input/event-codes.txt
index 53305bd..f1ea2c6 100644
--- a/Documentation/input/event-codes.txt
+++ b/Documentation/input/event-codes.txt
@@ -196,6 +196,17 @@
 EV_MSC events are used for input and output events that do not fall under other
 categories.
 
+A few EV_MSC codes have special meaning:
+
+* MSC_TIMESTAMP:
+  - Used to report the number of microseconds since the last reset. This event
+    should be coded as an uint32 value, which is allowed to wrap around with
+    no special consequence. It is assumed that the time difference between two
+    consecutive events is reliable on a reasonable time scale (hours).
+    A reset to zero can happen, in which case the time since the last event is
+    unknown.  If the device does not provide this information, the driver must
+    not provide it to user space.
+
 EV_LED:
 ----------
 EV_LED events are used for input and output to set and query the state of
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 1630150..e7d6a13 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -265,6 +265,15 @@
 	---help---
 	Support for Gyration remote control.
 
+config HID_ICADE
+	tristate "ION iCade arcade controller"
+	depends on BT_HIDP
+	---help---
+	Support for the ION iCade arcade controller to work as a joystick.
+
+	To compile this driver as a module, choose M here: the
+	module will be called hid-icade.
+
 config HID_TWINHAN
 	tristate "Twinhan IR remote control"
 	depends on USB_HID
@@ -728,4 +737,6 @@
 
 source "drivers/hid/usbhid/Kconfig"
 
+source "drivers/hid/i2c-hid/Kconfig"
+
 endmenu
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index cef68ca..b622157 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -52,6 +52,7 @@
 obj-$(CONFIG_HID_HOLTEK)	+= hid-holtek-kbd.o
 obj-$(CONFIG_HID_HOLTEK)	+= hid-holtekff.o
 obj-$(CONFIG_HID_HYPERV_MOUSE)	+= hid-hyperv.o
+obj-$(CONFIG_HID_ICADE)		+= hid-icade.o
 obj-$(CONFIG_HID_KENSINGTON)	+= hid-kensington.o
 obj-$(CONFIG_HID_KEYTOUCH)	+= hid-keytouch.o
 obj-$(CONFIG_HID_KYE)		+= hid-kye.o
@@ -93,8 +94,8 @@
 obj-$(CONFIG_HID_PS3REMOTE)	+= hid-ps3remote.o
 obj-$(CONFIG_HID_ROCCAT)	+= hid-roccat.o hid-roccat-common.o \
 	hid-roccat-arvo.o hid-roccat-isku.o hid-roccat-kone.o \
-	hid-roccat-koneplus.o hid-roccat-kovaplus.o hid-roccat-pyra.o \
-	hid-roccat-savu.o
+	hid-roccat-koneplus.o hid-roccat-kovaplus.o hid-roccat-lua.o \
+	hid-roccat-pyra.o hid-roccat-savu.o
 obj-$(CONFIG_HID_SAITEK)	+= hid-saitek.o
 obj-$(CONFIG_HID_SAMSUNG)	+= hid-samsung.o
 obj-$(CONFIG_HID_SMARTJOYPLUS)	+= hid-sjoy.o
@@ -118,3 +119,4 @@
 obj-$(CONFIG_USB_MOUSE)		+= usbhid/
 obj-$(CONFIG_USB_KBD)		+= usbhid/
 
+obj-$(CONFIG_I2C_HID)		+= i2c-hid/
diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index fd7722a..d0f7662 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -439,7 +439,8 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO),
-		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
+		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
+			APPLE_ISO_KEYBOARD },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
 			APPLE_RDESC_JIS },
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index f4109fd..eb2ee11 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -92,6 +92,7 @@
 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
 {
 	struct hid_field *field;
+	int i;
 
 	if (report->maxfield == HID_MAX_FIELDS) {
 		hid_err(report->device, "too many fields in report\n");
@@ -110,6 +111,9 @@
 	field->value = (s32 *)(field->usage + usages);
 	field->report = report;
 
+	for (i = 0; i < usages; i++)
+		field->usage[i].usage_index = i;
+
 	return field;
 }
 
@@ -315,6 +319,7 @@
 
 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 {
+	__u32 raw_value;
 	switch (item->tag) {
 	case HID_GLOBAL_ITEM_TAG_PUSH:
 
@@ -365,7 +370,14 @@
 		return 0;
 
 	case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
-		parser->global.unit_exponent = item_sdata(item);
+		/* Units exponent negative numbers are given through a
+		 * two's complement.
+		 * See "6.2.2.7 Global Items" for more information. */
+		raw_value = item_udata(item);
+		if (!(raw_value & 0xfffffff0))
+			parser->global.unit_exponent = hid_snto32(raw_value, 4);
+		else
+			parser->global.unit_exponent = raw_value;
 		return 0;
 
 	case HID_GLOBAL_ITEM_TAG_UNIT:
@@ -713,7 +725,12 @@
 					hid_scan_usage(hid, u);
 				break;
 			}
-		}
+		} else if (page == HID_UP_SENSOR &&
+			item.type == HID_ITEM_TYPE_MAIN &&
+			item.tag == HID_MAIN_ITEM_TAG_BEGIN_COLLECTION &&
+			(item_udata(&item) & 0xff) == HID_COLLECTION_PHYSICAL &&
+			hid->bus == BUS_USB)
+			hid->group = HID_GROUP_SENSOR_HUB;
 	}
 
 	return 0;
@@ -865,6 +882,12 @@
 	return value & (1 << (n - 1)) ? value | (-1 << n) : value;
 }
 
+s32 hid_snto32(__u32 value, unsigned n)
+{
+	return snto32(value, n);
+}
+EXPORT_SYMBOL_GPL(hid_snto32);
+
 /*
  * Convert a signed 32-bit integer to a signed n-bit integer.
  */
@@ -1465,6 +1488,10 @@
  * there is a proper autodetection and autoloading in place (based on presence
  * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
  * as we are doing the right thing in hid_scan_usage().
+ *
+ * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
+ * physical is found inside a usage page of type sensor, hid-sensor-hub will be
+ * used as a driver. See hid_scan_report().
  */
 static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
@@ -1538,6 +1565,7 @@
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
@@ -1571,10 +1599,7 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086, USB_DEVICE_ID_SENSOR_HUB_1020) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086, USB_DEVICE_ID_SENSOR_HUB_09FA) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087, USB_DEVICE_ID_SENSOR_HUB_1020) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087, USB_DEVICE_ID_SENSOR_HUB_09FA) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
@@ -1658,6 +1683,7 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
@@ -1672,7 +1698,6 @@
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_SENSOR_HUB_7014) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
@@ -2150,8 +2175,13 @@
 	{ }
 };
 
-static bool hid_ignore(struct hid_device *hdev)
+bool hid_ignore(struct hid_device *hdev)
 {
+	if (hdev->quirks & HID_QUIRK_NO_IGNORE)
+		return false;
+	if (hdev->quirks & HID_QUIRK_IGNORE)
+		return true;
+
 	switch (hdev->vendor) {
 	case USB_VENDOR_ID_CODEMERCS:
 		/* ignore all Code Mercenaries IOWarrior devices */
@@ -2188,7 +2218,16 @@
 		if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
 				hdev->type == HID_TYPE_USBNONE)
 			return true;
-	break;
+		break;
+	case USB_VENDOR_ID_DWAV:
+		/* These are handled by usbtouchscreen. hdev->type is probably
+		 * HID_TYPE_USBNONE, but we say !HID_TYPE_USBMOUSE to match
+		 * usbtouchscreen. */
+		if ((hdev->product == USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER ||
+		     hdev->product == USB_DEVICE_ID_DWAV_TOUCHCONTROLLER) &&
+		    hdev->type != HID_TYPE_USBMOUSE)
+			return true;
+		break;
 	}
 
 	if (hdev->type == HID_TYPE_USBMOUSE &&
@@ -2197,6 +2236,7 @@
 
 	return !!hid_match_id(hdev, hid_ignore_list);
 }
+EXPORT_SYMBOL_GPL(hid_ignore);
 
 int hid_add_device(struct hid_device *hdev)
 {
@@ -2208,8 +2248,7 @@
 
 	/* we need to kill them here, otherwise they will stay allocated to
 	 * wait for coming driver */
-	if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
-            && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
+	if (hid_ignore(hdev))
 		return -ENODEV;
 
 	/*
diff --git a/drivers/hid/hid-icade.c b/drivers/hid/hid-icade.c
new file mode 100644
index 0000000..1d6565e3
--- /dev/null
+++ b/drivers/hid/hid-icade.c
@@ -0,0 +1,259 @@
+/*
+ *  ION iCade input driver
+ *
+ *  Copyright (c) 2012 Bastien Nocera <hadess@hadess.net>
+ *  Copyright (c) 2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+/*
+ *   ↑      A C Y L
+ *  ← →
+ *   ↓      B X Z R
+ *
+ *
+ *  UP ON,OFF  = w,e
+ *  RT ON,OFF  = d,c
+ *  DN ON,OFF  = x,z
+ *  LT ON,OFF  = a,q
+ *  A  ON,OFF  = y,t
+ *  B  ON,OFF  = h,r
+ *  C  ON,OFF  = u,f
+ *  X  ON,OFF  = j,n
+ *  Y  ON,OFF  = i,m
+ *  Z  ON,OFF  = k,p
+ *  L  ON,OFF  = o,g
+ *  R  ON,OFF  = l,v
+ */
+
+/* The translation code uses HID usage instead of input layer
+ * keys. This code generates a lookup table that makes
+ * translation quick.
+ *
+ * #include <linux/input.h>
+ * #include <stdio.h>
+ * #include <assert.h>
+ *
+ * #define unk     KEY_UNKNOWN
+ *
+ * < copy of hid_keyboard[] from hid-input.c >
+ *
+ * struct icade_key_translation {
+ *     int         from;
+ *     const char *to;
+ *     int         press;
+ * };
+ *
+ * static const struct icade_key_translation icade_keys[] = {
+ *    { KEY_W,        "KEY_UP",         1 },
+ *    { KEY_E,        "KEY_UP",         0 },
+ *    { KEY_D,        "KEY_RIGHT",      1 },
+ *    { KEY_C,        "KEY_RIGHT",      0 },
+ *    { KEY_X,        "KEY_DOWN",       1 },
+ *    { KEY_Z,        "KEY_DOWN",       0 },
+ *    { KEY_A,        "KEY_LEFT",       1 },
+ *    { KEY_Q,        "KEY_LEFT",       0 },
+ *    { KEY_Y,        "BTN_A",          1 },
+ *    { KEY_T,        "BTN_A",          0 },
+ *    { KEY_H,        "BTN_B",          1 },
+ *    { KEY_R,        "BTN_B",          0 },
+ *    { KEY_U,        "BTN_C",          1 },
+ *    { KEY_F,        "BTN_C",          0 },
+ *    { KEY_J,        "BTN_X",          1 },
+ *    { KEY_N,        "BTN_X",          0 },
+ *    { KEY_I,        "BTN_Y",          1 },
+ *    { KEY_M,        "BTN_Y",          0 },
+ *    { KEY_K,        "BTN_Z",          1 },
+ *    { KEY_P,        "BTN_Z",          0 },
+ *    { KEY_O,        "BTN_THUMBL",     1 },
+ *    { KEY_G,        "BTN_THUMBL",     0 },
+ *    { KEY_L,        "BTN_THUMBR",     1 },
+ *    { KEY_V,        "BTN_THUMBR",     0 },
+ *
+ *    { }
+ * };
+ *
+ * static int
+ * usage_for_key (int key)
+ * {
+ *     int i;
+ *     for (i = 0; i < 256; i++) {
+ *     if (hid_keyboard[i] == key)
+ *         return i;
+ *     }
+ *     assert(0);
+ * }
+ *
+ * int main (int argc, char **argv)
+ * {
+ *     const struct icade_key_translation *trans;
+ *     int max_usage = 0;
+ *
+ *     for (trans = icade_keys; trans->from; trans++) {
+ *         int usage = usage_for_key (trans->from);
+ *         max_usage = usage > max_usage ? usage : max_usage;
+ *     }
+ *
+ *     printf ("#define ICADE_MAX_USAGE %d\n\n", max_usage);
+ *     printf ("struct icade_key {\n");
+ *     printf ("\tu16 to;\n");
+ *     printf ("\tu8 press:1;\n");
+ *     printf ("};\n\n");
+ *     printf ("static const struct icade_key "
+ *             "icade_usage_table[%d] = {\n", max_usage + 1);
+ *     for (trans = icade_keys; trans->from; trans++) {
+ *         printf ("\t[%d] = { %s, %d },\n",
+ *                 usage_for_key (trans->from), trans->to, trans->press);
+ *     }
+ *     printf ("};\n");
+ *
+ *     return 0;
+ * }
+ */
+
+#define ICADE_MAX_USAGE 29
+
+struct icade_key {
+	u16 to;
+	u8 press:1;
+};
+
+static const struct icade_key icade_usage_table[30] = {
+	[26] = { KEY_UP, 1 },
+	[8] = { KEY_UP, 0 },
+	[7] = { KEY_RIGHT, 1 },
+	[6] = { KEY_RIGHT, 0 },
+	[27] = { KEY_DOWN, 1 },
+	[29] = { KEY_DOWN, 0 },
+	[4] = { KEY_LEFT, 1 },
+	[20] = { KEY_LEFT, 0 },
+	[28] = { BTN_A, 1 },
+	[23] = { BTN_A, 0 },
+	[11] = { BTN_B, 1 },
+	[21] = { BTN_B, 0 },
+	[24] = { BTN_C, 1 },
+	[9] = { BTN_C, 0 },
+	[13] = { BTN_X, 1 },
+	[17] = { BTN_X, 0 },
+	[12] = { BTN_Y, 1 },
+	[16] = { BTN_Y, 0 },
+	[14] = { BTN_Z, 1 },
+	[19] = { BTN_Z, 0 },
+	[18] = { BTN_THUMBL, 1 },
+	[10] = { BTN_THUMBL, 0 },
+	[15] = { BTN_THUMBR, 1 },
+	[25] = { BTN_THUMBR, 0 },
+};
+
+static const struct icade_key *icade_find_translation(u16 from)
+{
+	if (from < 0 || from > ICADE_MAX_USAGE)
+		return NULL;
+	return &icade_usage_table[from];
+}
+
+static int icade_event(struct hid_device *hdev, struct hid_field *field,
+		struct hid_usage *usage, __s32 value)
+{
+	const struct icade_key *trans;
+
+	if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
+			!usage->type)
+		return 0;
+
+	/* We ignore the fake key up, and act only on key down */
+	if (!value)
+		return 1;
+
+	trans = icade_find_translation(usage->hid & HID_USAGE);
+
+	if (!trans)
+		return 1;
+
+	input_event(field->hidinput->input, usage->type,
+			trans->to, trans->press);
+
+	return 1;
+}
+
+static int icade_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	const struct icade_key *trans;
+
+	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_KEYBOARD) {
+		trans = icade_find_translation(usage->hid & HID_USAGE);
+
+		if (!trans)
+			return -1;
+
+		hid_map_usage(hi, usage, bit, max, EV_KEY, trans->to);
+		set_bit(trans->to, hi->input->keybit);
+
+		return 1;
+	}
+
+	/* ignore others */
+	return -1;
+
+}
+
+static int icade_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	if (usage->type == EV_KEY)
+		set_bit(usage->type, hi->input->evbit);
+
+	return -1;
+}
+
+static const struct hid_device_id icade_devices[] = {
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
+
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, icade_devices);
+
+static struct hid_driver icade_driver = {
+	.name = "icade",
+	.id_table = icade_devices,
+	.event = icade_event,
+	.input_mapped = icade_input_mapped,
+	.input_mapping = icade_input_mapping,
+};
+
+static int __init icade_init(void)
+{
+	int ret;
+
+	ret = hid_register_driver(&icade_driver);
+	if (ret)
+		pr_err("can't register icade driver\n");
+
+	return ret;
+}
+
+static void __exit icade_exit(void)
+{
+	hid_unregister_driver(&icade_driver);
+}
+
+module_init(icade_init);
+module_exit(icade_exit);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Bastien Nocera <hadess@hadess.net>");
+MODULE_DESCRIPTION("ION iCade input driver");
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 9d7a428..4dfa605 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -257,6 +257,7 @@
 
 #define USB_VENDOR_ID_DWAV		0x0eef
 #define USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER	0x0001
+#define USB_DEVICE_ID_DWAV_TOUCHCONTROLLER	0x0002
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D	0x480d
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E	0x480e
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207	0x7207
@@ -423,6 +424,9 @@
 #define USB_VENDOR_ID_ILITEK		0x222a
 #define USB_DEVICE_ID_ILITEK_MULTITOUCH	0x0001
 
+#define USB_VENDOR_ID_ION		0x15e4
+#define USB_DEVICE_ID_ICADE		0x0132
+
 #define USB_VENDOR_ID_HOLTEK		0x1241
 #define USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP	0x5015
 
@@ -432,11 +436,6 @@
 #define USB_VENDOR_ID_IMATION		0x0718
 #define USB_DEVICE_ID_DISC_STAKKA	0xd000
 
-#define USB_VENDOR_ID_INTEL_8086	0x8086
-#define USB_VENDOR_ID_INTEL_8087	0x8087
-#define USB_DEVICE_ID_SENSOR_HUB_1020	0x1020
-#define USB_DEVICE_ID_SENSOR_HUB_09FA	0x09FA
-
 #define USB_VENDOR_ID_IRTOUCHSYSTEMS	0x6615
 #define USB_DEVICE_ID_IRTOUCH_INFRARED_USB	0x0070
 
@@ -603,6 +602,7 @@
 
 #define USB_VENDOR_ID_NOVATEK		0x0603
 #define USB_DEVICE_ID_NOVATEK_PCT	0x0600
+#define USB_DEVICE_ID_NOVATEK_MOUSE	0x1602
 
 #define USB_VENDOR_ID_NTRIG		0x1b96
 #define USB_DEVICE_ID_NTRIG_TOUCH_SCREEN   0x0001
@@ -677,7 +677,9 @@
 #define USB_DEVICE_ID_ROCCAT_ISKU	0x319c
 #define USB_DEVICE_ID_ROCCAT_KONE	0x2ced
 #define USB_DEVICE_ID_ROCCAT_KONEPLUS	0x2d51
+#define USB_DEVICE_ID_ROCCAT_KONEXTD	0x2e22
 #define USB_DEVICE_ID_ROCCAT_KOVAPLUS	0x2d50
+#define USB_DEVICE_ID_ROCCAT_LUA	0x2c2e
 #define USB_DEVICE_ID_ROCCAT_PYRA_WIRED	0x2c24
 #define USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS	0x2cf6
 #define USB_DEVICE_ID_ROCCAT_SAVU	0x2d5a
@@ -696,6 +698,9 @@
 #define USB_VENDOR_ID_SIGMA_MICRO	0x1c4f
 #define USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD	0x0002
 
+#define USB_VENDOR_ID_SIGMATEL		0x066F
+#define USB_DEVICE_ID_SIGMATEL_STMP3780	0x3780
+
 #define USB_VENDOR_ID_SKYCABLE			0x1223
 #define	USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER	0x3F07
 
@@ -714,7 +719,6 @@
 
 #define USB_VENDOR_ID_STANTUM_STM		0x0483
 #define USB_DEVICE_ID_MTP_STM		0x3261
-#define USB_DEVICE_ID_SENSOR_HUB_7014	0x7014
 
 #define USB_VENDOR_ID_STANTUM_SITRONIX		0x1403
 #define USB_DEVICE_ID_MTP_SITRONIX		0x5001
@@ -762,6 +766,9 @@
 #define USB_VENDOR_ID_TOUCHPACK		0x1bfd
 #define USB_DEVICE_ID_TOUCHPACK_RTS	0x1688
 
+#define USB_VENDOR_ID_TPV		0x25aa
+#define USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN	0x8883
+
 #define USB_VENDOR_ID_TURBOX		0x062a
 #define USB_DEVICE_ID_TURBOX_KEYBOARD	0x0201
 #define USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART	0x7100
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index d917c0d..21b196c 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -192,7 +192,6 @@
 	return -EINVAL;
 }
 
-
 /**
  * hidinput_calc_abs_res - calculate an absolute axis resolution
  * @field: the HID report field to calculate resolution for
@@ -208,7 +207,7 @@
  * Only exponent 1 length units are processed. Centimeters and inches are
  * converted to millimeters. Degrees are converted to radians.
  */
-static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
+__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
 {
 	__s32 unit_exponent = field->unit_exponent;
 	__s32 logical_extents = field->logical_maximum -
@@ -229,17 +228,29 @@
 	case ABS_X:
 	case ABS_Y:
 	case ABS_Z:
-		if (field->unit == 0x11) {		/* If centimeters */
+	case ABS_MT_POSITION_X:
+	case ABS_MT_POSITION_Y:
+	case ABS_MT_TOOL_X:
+	case ABS_MT_TOOL_Y:
+	case ABS_MT_TOUCH_MAJOR:
+	case ABS_MT_TOUCH_MINOR:
+		if (field->unit & 0xffffff00)		/* Not a length */
+			return 0;
+		unit_exponent += hid_snto32(field->unit >> 4, 4) - 1;
+		switch (field->unit & 0xf) {
+		case 0x1:				/* If centimeters */
 			/* Convert to millimeters */
 			unit_exponent += 1;
-		} else if (field->unit == 0x13) {	/* If inches */
+			break;
+		case 0x3:				/* If inches */
 			/* Convert to millimeters */
 			prev = physical_extents;
 			physical_extents *= 254;
 			if (physical_extents < prev)
 				return 0;
 			unit_exponent -= 1;
-		} else {
+			break;
+		default:
 			return 0;
 		}
 		break;
@@ -281,8 +292,9 @@
 	}
 
 	/* Calculate resolution */
-	return logical_extents / physical_extents;
+	return DIV_ROUND_CLOSEST(logical_extents, physical_extents);
 }
+EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
 
 #ifdef CONFIG_HID_BATTERY_STRENGTH
 static enum power_supply_property hidinput_battery_props[] = {
@@ -299,6 +311,9 @@
 
 static const struct hid_device_id hid_battery_quirks[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
+			USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
+	HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
 			       USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
 	  HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
@@ -502,9 +517,14 @@
 				if (code <= 0xf)
 					code += BTN_JOYSTICK;
 				else
-					code += BTN_TRIGGER_HAPPY;
+					code += BTN_TRIGGER_HAPPY - 0x10;
 				break;
-		case HID_GD_GAMEPAD:  code += BTN_GAMEPAD; break;
+		case HID_GD_GAMEPAD:
+				if (code <= 0xf)
+					code += BTN_GAMEPAD;
+				else
+					code += BTN_TRIGGER_HAPPY - 0x10;
+				break;
 		default:
 			switch (field->physical) {
 			case HID_GD_MOUSE:
@@ -1146,6 +1166,38 @@
 			}
 }
 
+static struct hid_input *hidinput_allocate(struct hid_device *hid)
+{
+	struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
+	struct input_dev *input_dev = input_allocate_device();
+	if (!hidinput || !input_dev) {
+		kfree(hidinput);
+		input_free_device(input_dev);
+		hid_err(hid, "Out of memory during hid input probe\n");
+		return NULL;
+	}
+
+	input_set_drvdata(input_dev, hid);
+	input_dev->event = hid->ll_driver->hidinput_input_event;
+	input_dev->open = hidinput_open;
+	input_dev->close = hidinput_close;
+	input_dev->setkeycode = hidinput_setkeycode;
+	input_dev->getkeycode = hidinput_getkeycode;
+
+	input_dev->name = hid->name;
+	input_dev->phys = hid->phys;
+	input_dev->uniq = hid->uniq;
+	input_dev->id.bustype = hid->bus;
+	input_dev->id.vendor  = hid->vendor;
+	input_dev->id.product = hid->product;
+	input_dev->id.version = hid->version;
+	input_dev->dev.parent = hid->dev.parent;
+	hidinput->input = input_dev;
+	list_add_tail(&hidinput->list, &hid->inputs);
+
+	return hidinput;
+}
+
 /*
  * Register the input device; print a message.
  * Configure the input layer interface
@@ -1157,7 +1209,6 @@
 	struct hid_driver *drv = hid->driver;
 	struct hid_report *report;
 	struct hid_input *hidinput = NULL;
-	struct input_dev *input_dev;
 	int i, j, k;
 
 	INIT_LIST_HEAD(&hid->inputs);
@@ -1188,33 +1239,9 @@
 				continue;
 
 			if (!hidinput) {
-				hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
-				input_dev = input_allocate_device();
-				if (!hidinput || !input_dev) {
-					kfree(hidinput);
-					input_free_device(input_dev);
-					hid_err(hid, "Out of memory during hid input probe\n");
+				hidinput = hidinput_allocate(hid);
+				if (!hidinput)
 					goto out_unwind;
-				}
-
-				input_set_drvdata(input_dev, hid);
-				input_dev->event =
-					hid->ll_driver->hidinput_input_event;
-				input_dev->open = hidinput_open;
-				input_dev->close = hidinput_close;
-				input_dev->setkeycode = hidinput_setkeycode;
-				input_dev->getkeycode = hidinput_getkeycode;
-
-				input_dev->name = hid->name;
-				input_dev->phys = hid->phys;
-				input_dev->uniq = hid->uniq;
-				input_dev->id.bustype = hid->bus;
-				input_dev->id.vendor  = hid->vendor;
-				input_dev->id.product = hid->product;
-				input_dev->id.version = hid->version;
-				input_dev->dev.parent = hid->dev.parent;
-				hidinput->input = input_dev;
-				list_add_tail(&hidinput->list, &hid->inputs);
 			}
 
 			for (i = 0; i < report->maxfield; i++)
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 7867d69..61543c0 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -52,11 +52,14 @@
 #define MT_QUIRK_VALID_IS_CONFIDENCE	(1 << 6)
 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE	(1 << 8)
 #define MT_QUIRK_NO_AREA		(1 << 9)
+#define MT_QUIRK_IGNORE_DUPLICATES	(1 << 10)
+#define MT_QUIRK_HOVERING		(1 << 11)
 
 struct mt_slot {
-	__s32 x, y, p, w, h;
+	__s32 x, y, cx, cy, p, w, h;
 	__s32 contactid;	/* the device ContactID assigned to this slot */
 	bool touch_state;	/* is the touch valid? */
+	bool inrange_state;	/* is the finger in proximity of the sensor? */
 };
 
 struct mt_class {
@@ -121,6 +124,7 @@
 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS	0x0109
 
 #define MT_DEFAULT_MAXCONTACT	10
+#define MT_MAX_MAXCONTACT	250
 
 #define MT_USB_DEVICE(v, p)	HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
 #define MT_BT_DEVICE(v, p)	HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
@@ -282,11 +286,26 @@
 	case HID_DG_CONTACTMAX:
 		td->maxcontact_report_id = field->report->id;
 		td->maxcontacts = field->value[0];
+		if (!td->maxcontacts &&
+		    field->logical_maximum <= MT_MAX_MAXCONTACT)
+			td->maxcontacts = field->logical_maximum;
 		if (td->mtclass.maxcontacts)
 			/* check if the maxcontacts is given by the class */
 			td->maxcontacts = td->mtclass.maxcontacts;
 
 		break;
+	case 0xff0000c5:
+		if (field->report_count == 256 && field->report_size == 8) {
+			/* Win 8 devices need special quirks */
+			__s32 *quirks = &td->mtclass.quirks;
+			*quirks |= MT_QUIRK_ALWAYS_VALID;
+			*quirks |= MT_QUIRK_IGNORE_DUPLICATES;
+			*quirks |= MT_QUIRK_HOVERING;
+			*quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
+			*quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
+			*quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
+		}
+		break;
 	}
 }
 
@@ -297,6 +316,7 @@
 	int fmax = field->logical_maximum;
 	int fuzz = snratio ? (fmax - fmin) / snratio : 0;
 	input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
+	input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
 }
 
 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
@@ -317,6 +337,7 @@
 	struct mt_device *td = hid_get_drvdata(hdev);
 	struct mt_class *cls = &td->mtclass;
 	int code;
+	struct hid_usage *prev_usage = NULL;
 
 	/* Only map fields from TouchScreen or TouchPad collections.
 	* We need to ignore fields that belong to other collections
@@ -339,23 +360,42 @@
 	if (field->physical == HID_DG_STYLUS)
 		return -1;
 
+	if (usage->usage_index)
+		prev_usage = &field->usage[usage->usage_index - 1];
+
 	switch (usage->hid & HID_USAGE_PAGE) {
 
 	case HID_UP_GENDESK:
 		switch (usage->hid) {
 		case HID_GD_X:
-			hid_map_usage(hi, usage, bit, max,
+			if (prev_usage && (prev_usage->hid == usage->hid)) {
+				hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_TOOL_X);
+				set_abs(hi->input, ABS_MT_TOOL_X, field,
+					cls->sn_move);
+			} else {
+				hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_POSITION_X);
-			set_abs(hi->input, ABS_MT_POSITION_X, field,
-				cls->sn_move);
+				set_abs(hi->input, ABS_MT_POSITION_X, field,
+					cls->sn_move);
+			}
+
 			mt_store_field(usage, td, hi);
 			td->last_field_index = field->index;
 			return 1;
 		case HID_GD_Y:
-			hid_map_usage(hi, usage, bit, max,
+			if (prev_usage && (prev_usage->hid == usage->hid)) {
+				hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_TOOL_Y);
+				set_abs(hi->input, ABS_MT_TOOL_Y, field,
+					cls->sn_move);
+			} else {
+				hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_POSITION_Y);
-			set_abs(hi->input, ABS_MT_POSITION_Y, field,
-				cls->sn_move);
+				set_abs(hi->input, ABS_MT_POSITION_Y, field,
+					cls->sn_move);
+			}
+
 			mt_store_field(usage, td, hi);
 			td->last_field_index = field->index;
 			return 1;
@@ -365,6 +405,12 @@
 	case HID_UP_DIGITIZER:
 		switch (usage->hid) {
 		case HID_DG_INRANGE:
+			if (cls->quirks & MT_QUIRK_HOVERING) {
+				hid_map_usage(hi, usage, bit, max,
+					EV_ABS, ABS_MT_DISTANCE);
+				input_set_abs_params(hi->input,
+					ABS_MT_DISTANCE, 0, 1, 0, 0);
+			}
 			mt_store_field(usage, td, hi);
 			td->last_field_index = field->index;
 			return 1;
@@ -477,18 +523,26 @@
  */
 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
 {
-	if (td->curvalid) {
+	if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
 		int slotnum = mt_compute_slot(td, input);
 		struct mt_slot *s = &td->curdata;
+		struct input_mt *mt = input->mt;
 
 		if (slotnum < 0 || slotnum >= td->maxcontacts)
 			return;
 
+		if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
+			struct input_mt_slot *slot = &mt->slots[slotnum];
+			if (input_mt_is_active(slot) &&
+			    input_mt_is_used(mt, slot))
+				return;
+		}
+
 		input_mt_slot(input, slotnum);
 		input_mt_report_slot_state(input, MT_TOOL_FINGER,
-			s->touch_state);
-		if (s->touch_state) {
-			/* this finger is on the screen */
+			s->touch_state || s->inrange_state);
+		if (s->touch_state || s->inrange_state) {
+			/* this finger is in proximity of the sensor */
 			int wide = (s->w > s->h);
 			/* divided by two to match visual scale of touch */
 			int major = max(s->w, s->h) >> 1;
@@ -496,6 +550,10 @@
 
 			input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
 			input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
+			input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
+			input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
+			input_event(input, EV_ABS, ABS_MT_DISTANCE,
+				!s->touch_state);
 			input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
 			input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
 			input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
@@ -526,10 +584,10 @@
 	if (hid->claimed & HID_CLAIMED_INPUT) {
 		switch (usage->hid) {
 		case HID_DG_INRANGE:
-			if (quirks & MT_QUIRK_ALWAYS_VALID)
-				td->curvalid = true;
-			else if (quirks & MT_QUIRK_VALID_IS_INRANGE)
+			if (quirks & MT_QUIRK_VALID_IS_INRANGE)
 				td->curvalid = value;
+			if (quirks & MT_QUIRK_HOVERING)
+				td->curdata.inrange_state = value;
 			break;
 		case HID_DG_TIPSWITCH:
 			if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
@@ -547,10 +605,16 @@
 			td->curdata.p = value;
 			break;
 		case HID_GD_X:
-			td->curdata.x = value;
+			if (usage->code == ABS_MT_TOOL_X)
+				td->curdata.cx = value;
+			else
+				td->curdata.x = value;
 			break;
 		case HID_GD_Y:
-			td->curdata.y = value;
+			if (usage->code == ABS_MT_TOOL_Y)
+				td->curdata.cy = value;
+			else
+				td->curdata.y = value;
 			break;
 		case HID_DG_WIDTH:
 			td->curdata.w = value;
@@ -575,12 +639,15 @@
 			return 0;
 		}
 
-		if (usage->hid == td->last_slot_field)
-			mt_complete_slot(td, field->hidinput->input);
+		if (usage->usage_index + 1 == field->report_count) {
+			/* we only take into account the last report. */
+			if (usage->hid == td->last_slot_field)
+				mt_complete_slot(td, field->hidinput->input);
 
-		if (field->index == td->last_field_index
-			&& td->num_received >= td->num_expected)
-			mt_sync_frame(td, field->hidinput->input);
+			if (field->index == td->last_field_index
+				&& td->num_received >= td->num_expected)
+				mt_sync_frame(td, field->hidinput->input);
+		}
 
 	}
 
diff --git a/drivers/hid/hid-roccat-isku.c b/drivers/hid/hid-roccat-isku.c
index 5669916..1219998 100644
--- a/drivers/hid/hid-roccat-isku.c
+++ b/drivers/hid/hid-roccat-isku.c
@@ -167,7 +167,7 @@
 		loff_t off, size_t count) \
 { \
 	return isku_sysfs_write(fp, kobj, buf, off, count, \
-			sizeof(struct isku_ ## thingy), ISKU_COMMAND_ ## THINGY); \
+			ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
 }
 
 #define ISKU_SYSFS_R(thingy, THINGY) \
@@ -176,32 +176,32 @@
 		loff_t off, size_t count) \
 { \
 	return isku_sysfs_read(fp, kobj, buf, off, count, \
-			sizeof(struct isku_ ## thingy), ISKU_COMMAND_ ## THINGY); \
+			ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
 }
 
 #define ISKU_SYSFS_RW(thingy, THINGY) \
 ISKU_SYSFS_R(thingy, THINGY) \
 ISKU_SYSFS_W(thingy, THINGY)
 
-#define ISKU_BIN_ATTR_RW(thingy) \
+#define ISKU_BIN_ATTR_RW(thingy, THINGY) \
 { \
 	.attr = { .name = #thingy, .mode = 0660 }, \
-	.size = sizeof(struct isku_ ## thingy), \
+	.size = ISKU_SIZE_ ## THINGY, \
 	.read = isku_sysfs_read_ ## thingy, \
 	.write = isku_sysfs_write_ ## thingy \
 }
 
-#define ISKU_BIN_ATTR_R(thingy) \
+#define ISKU_BIN_ATTR_R(thingy, THINGY) \
 { \
 	.attr = { .name = #thingy, .mode = 0440 }, \
-	.size = sizeof(struct isku_ ## thingy), \
+	.size = ISKU_SIZE_ ## THINGY, \
 	.read = isku_sysfs_read_ ## thingy, \
 }
 
-#define ISKU_BIN_ATTR_W(thingy) \
+#define ISKU_BIN_ATTR_W(thingy, THINGY) \
 { \
 	.attr = { .name = #thingy, .mode = 0220 }, \
-	.size = sizeof(struct isku_ ## thingy), \
+	.size = ISKU_SIZE_ ## THINGY, \
 	.write = isku_sysfs_write_ ## thingy \
 }
 
@@ -218,21 +218,23 @@
 ISKU_SYSFS_W(talk, TALK)
 ISKU_SYSFS_R(info, INFO)
 ISKU_SYSFS_W(control, CONTROL)
+ISKU_SYSFS_W(reset, RESET)
 
 static struct bin_attribute isku_bin_attributes[] = {
-	ISKU_BIN_ATTR_RW(macro),
-	ISKU_BIN_ATTR_RW(keys_function),
-	ISKU_BIN_ATTR_RW(keys_easyzone),
-	ISKU_BIN_ATTR_RW(keys_media),
-	ISKU_BIN_ATTR_RW(keys_thumbster),
-	ISKU_BIN_ATTR_RW(keys_macro),
-	ISKU_BIN_ATTR_RW(keys_capslock),
-	ISKU_BIN_ATTR_RW(light),
-	ISKU_BIN_ATTR_RW(key_mask),
-	ISKU_BIN_ATTR_RW(last_set),
-	ISKU_BIN_ATTR_W(talk),
-	ISKU_BIN_ATTR_R(info),
-	ISKU_BIN_ATTR_W(control),
+	ISKU_BIN_ATTR_RW(macro, MACRO),
+	ISKU_BIN_ATTR_RW(keys_function, KEYS_FUNCTION),
+	ISKU_BIN_ATTR_RW(keys_easyzone, KEYS_EASYZONE),
+	ISKU_BIN_ATTR_RW(keys_media, KEYS_MEDIA),
+	ISKU_BIN_ATTR_RW(keys_thumbster, KEYS_THUMBSTER),
+	ISKU_BIN_ATTR_RW(keys_macro, KEYS_MACRO),
+	ISKU_BIN_ATTR_RW(keys_capslock, KEYS_CAPSLOCK),
+	ISKU_BIN_ATTR_RW(light, LIGHT),
+	ISKU_BIN_ATTR_RW(key_mask, KEY_MASK),
+	ISKU_BIN_ATTR_RW(last_set, LAST_SET),
+	ISKU_BIN_ATTR_W(talk, TALK),
+	ISKU_BIN_ATTR_R(info, INFO),
+	ISKU_BIN_ATTR_W(control, CONTROL),
+	ISKU_BIN_ATTR_W(reset, RESET),
 	__ATTR_NULL
 };
 
diff --git a/drivers/hid/hid-roccat-isku.h b/drivers/hid/hid-roccat-isku.h
index 605b3ce..cf6896c 100644
--- a/drivers/hid/hid-roccat-isku.h
+++ b/drivers/hid/hid-roccat-isku.h
@@ -15,76 +15,33 @@
 #include <linux/types.h>
 
 enum {
+	ISKU_SIZE_CONTROL = 0x03,
+	ISKU_SIZE_INFO = 0x06,
+	ISKU_SIZE_KEY_MASK = 0x06,
+	ISKU_SIZE_KEYS_FUNCTION = 0x29,
+	ISKU_SIZE_KEYS_EASYZONE = 0x41,
+	ISKU_SIZE_KEYS_MEDIA = 0x1d,
+	ISKU_SIZE_KEYS_THUMBSTER = 0x17,
+	ISKU_SIZE_KEYS_MACRO = 0x23,
+	ISKU_SIZE_KEYS_CAPSLOCK = 0x06,
+	ISKU_SIZE_LAST_SET = 0x14,
+	ISKU_SIZE_LIGHT = 0x0a,
+	ISKU_SIZE_MACRO = 0x823,
+	ISKU_SIZE_RESET = 0x03,
+	ISKU_SIZE_TALK = 0x10,
+};
+
+enum {
 	ISKU_PROFILE_NUM = 5,
 	ISKU_USB_INTERFACE_PROTOCOL = 0,
 };
 
-struct isku_control {
-	uint8_t command; /* ISKU_COMMAND_CONTROL */
-	uint8_t value;
-	uint8_t request;
-} __packed;
-
 struct isku_actual_profile {
 	uint8_t command; /* ISKU_COMMAND_ACTUAL_PROFILE */
 	uint8_t size; /* always 3 */
 	uint8_t actual_profile;
 } __packed;
 
-struct isku_key_mask {
-	uint8_t command; /* ISKU_COMMAND_KEY_MASK */
-	uint8_t size; /* 6 */
-	uint8_t profile_number; /* 0-4 */
-	uint8_t mask;
-	uint16_t checksum;
-} __packed;
-
-struct isku_keys_function {
-	uint8_t data[0x29];
-} __packed;
-
-struct isku_keys_easyzone {
-	uint8_t data[0x41];
-} __packed;
-
-struct isku_keys_media {
-	uint8_t data[0x1d];
-} __packed;
-
-struct isku_keys_thumbster {
-	uint8_t data[0x17];
-} __packed;
-
-struct isku_keys_macro {
-	uint8_t data[0x23];
-} __packed;
-
-struct isku_keys_capslock {
-	uint8_t data[0x6];
-} __packed;
-
-struct isku_macro {
-	uint8_t data[0x823];
-} __packed;
-
-struct isku_light {
-	uint8_t data[0xa];
-} __packed;
-
-struct isku_info {
-	uint8_t data[2];
-	uint8_t firmware_version;
-	uint8_t unknown[3];
-} __packed;
-
-struct isku_talk {
-	uint8_t data[0x10];
-} __packed;
-
-struct isku_last_set {
-	uint8_t data[0x14];
-} __packed;
-
 enum isku_commands {
 	ISKU_COMMAND_CONTROL = 0x4,
 	ISKU_COMMAND_ACTUAL_PROFILE = 0x5,
@@ -97,6 +54,7 @@
 	ISKU_COMMAND_MACRO = 0xe,
 	ISKU_COMMAND_INFO = 0xf,
 	ISKU_COMMAND_LIGHT = 0x10,
+	ISKU_COMMAND_RESET = 0x11,
 	ISKU_COMMAND_KEYS_CAPSLOCK = 0x13,
 	ISKU_COMMAND_LAST_SET = 0x14,
 	ISKU_COMMAND_15 = 0x15,
diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c
index f5602fe..6a48fa3 100644
--- a/drivers/hid/hid-roccat-koneplus.c
+++ b/drivers/hid/hid-roccat-koneplus.c
@@ -14,6 +14,7 @@
 /*
  * Roccat Kone[+] is an updated/improved version of the Kone with more memory
  * and functionality and without the non-standard behaviours the Kone had.
+ * KoneXTD has same capabilities but updated sensor.
  */
 
 #include <linux/device.h>
@@ -55,56 +56,6 @@
 			&control, sizeof(struct roccat_common2_control));
 }
 
-static int koneplus_get_info(struct usb_device *usb_dev,
-		struct koneplus_info *buf)
-{
-	return roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_INFO,
-			buf, sizeof(struct koneplus_info));
-}
-
-static int koneplus_get_profile_settings(struct usb_device *usb_dev,
-		struct koneplus_profile_settings *buf, uint number)
-{
-	int retval;
-
-	retval = koneplus_send_control(usb_dev, number,
-			KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
-	if (retval)
-		return retval;
-
-	return roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_PROFILE_SETTINGS,
-			buf, sizeof(struct koneplus_profile_settings));
-}
-
-static int koneplus_set_profile_settings(struct usb_device *usb_dev,
-		struct koneplus_profile_settings const *settings)
-{
-	return roccat_common2_send_with_status(usb_dev,
-			KONEPLUS_COMMAND_PROFILE_SETTINGS,
-			settings, sizeof(struct koneplus_profile_settings));
-}
-
-static int koneplus_get_profile_buttons(struct usb_device *usb_dev,
-		struct koneplus_profile_buttons *buf, int number)
-{
-	int retval;
-
-	retval = koneplus_send_control(usb_dev, number,
-			KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
-	if (retval)
-		return retval;
-
-	return roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_PROFILE_BUTTONS,
-			buf, sizeof(struct koneplus_profile_buttons));
-}
-
-static int koneplus_set_profile_buttons(struct usb_device *usb_dev,
-		struct koneplus_profile_buttons const *buttons)
-{
-	return roccat_common2_send_with_status(usb_dev,
-			KONEPLUS_COMMAND_PROFILE_BUTTONS,
-			buttons, sizeof(struct koneplus_profile_buttons));
-}
 
 /* retval is 0-4 on success, < 0 on error */
 static int koneplus_get_actual_profile(struct usb_device *usb_dev)
@@ -113,7 +64,7 @@
 	int retval;
 
 	retval = roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_ACTUAL_PROFILE,
-			&buf, sizeof(struct koneplus_actual_profile));
+			&buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
 
 	return retval ? retval : buf.actual_profile;
 }
@@ -124,12 +75,12 @@
 	struct koneplus_actual_profile buf;
 
 	buf.command = KONEPLUS_COMMAND_ACTUAL_PROFILE;
-	buf.size = sizeof(struct koneplus_actual_profile);
+	buf.size = KONEPLUS_SIZE_ACTUAL_PROFILE;
 	buf.actual_profile = new_profile;
 
 	return roccat_common2_send_with_status(usb_dev,
 			KONEPLUS_COMMAND_ACTUAL_PROFILE,
-			&buf, sizeof(struct koneplus_actual_profile));
+			&buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
 }
 
 static ssize_t koneplus_sysfs_read(struct file *fp, struct kobject *kobj,
@@ -182,53 +133,59 @@
 	return real_size;
 }
 
-static ssize_t koneplus_sysfs_write_talk(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	return koneplus_sysfs_write(fp, kobj, buf, off, count,
-			sizeof(struct koneplus_talk), KONEPLUS_COMMAND_TALK);
+#define KONEPLUS_SYSFS_W(thingy, THINGY) \
+static ssize_t koneplus_sysfs_write_ ## thingy(struct file *fp, \
+		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
+		loff_t off, size_t count) \
+{ \
+	return koneplus_sysfs_write(fp, kobj, buf, off, count, \
+			KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
 }
 
-static ssize_t koneplus_sysfs_write_macro(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	return koneplus_sysfs_write(fp, kobj, buf, off, count,
-			sizeof(struct koneplus_macro), KONEPLUS_COMMAND_MACRO);
+#define KONEPLUS_SYSFS_R(thingy, THINGY) \
+static ssize_t koneplus_sysfs_read_ ## thingy(struct file *fp, \
+		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
+		loff_t off, size_t count) \
+{ \
+	return koneplus_sysfs_read(fp, kobj, buf, off, count, \
+			KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
 }
 
-static ssize_t koneplus_sysfs_read_sensor(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	return koneplus_sysfs_read(fp, kobj, buf, off, count,
-			sizeof(struct koneplus_sensor), KONEPLUS_COMMAND_SENSOR);
+#define KONEPLUS_SYSFS_RW(thingy, THINGY) \
+KONEPLUS_SYSFS_W(thingy, THINGY) \
+KONEPLUS_SYSFS_R(thingy, THINGY)
+
+#define KONEPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
+{ \
+	.attr = { .name = #thingy, .mode = 0660 }, \
+	.size = KONEPLUS_SIZE_ ## THINGY, \
+	.read = koneplus_sysfs_read_ ## thingy, \
+	.write = koneplus_sysfs_write_ ## thingy \
 }
 
-static ssize_t koneplus_sysfs_write_sensor(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	return koneplus_sysfs_write(fp, kobj, buf, off, count,
-			sizeof(struct koneplus_sensor), KONEPLUS_COMMAND_SENSOR);
+#define KONEPLUS_BIN_ATTRIBUTE_R(thingy, THINGY) \
+{ \
+	.attr = { .name = #thingy, .mode = 0440 }, \
+	.size = KONEPLUS_SIZE_ ## THINGY, \
+	.read = koneplus_sysfs_read_ ## thingy, \
 }
 
-static ssize_t koneplus_sysfs_write_tcu(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	return koneplus_sysfs_write(fp, kobj, buf, off, count,
-			sizeof(struct koneplus_tcu), KONEPLUS_COMMAND_TCU);
+#define KONEPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
+{ \
+	.attr = { .name = #thingy, .mode = 0220 }, \
+	.size = KONEPLUS_SIZE_ ## THINGY, \
+	.write = koneplus_sysfs_write_ ## thingy \
 }
 
-static ssize_t koneplus_sysfs_read_tcu_image(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	return koneplus_sysfs_read(fp, kobj, buf, off, count,
-			sizeof(struct koneplus_tcu_image), KONEPLUS_COMMAND_TCU);
-}
+KONEPLUS_SYSFS_W(control, CONTROL)
+KONEPLUS_SYSFS_RW(info, INFO)
+KONEPLUS_SYSFS_W(talk, TALK)
+KONEPLUS_SYSFS_W(macro, MACRO)
+KONEPLUS_SYSFS_RW(sensor, SENSOR)
+KONEPLUS_SYSFS_RW(tcu, TCU)
+KONEPLUS_SYSFS_R(tcu_image, TCU_IMAGE)
+KONEPLUS_SYSFS_RW(profile_settings, PROFILE_SETTINGS)
+KONEPLUS_SYSFS_RW(profile_buttons, PROFILE_BUTTONS)
 
 static ssize_t koneplus_sysfs_read_profilex_settings(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
@@ -236,57 +193,17 @@
 {
 	struct device *dev =
 			container_of(kobj, struct device, kobj)->parent->parent;
-	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
-
-	if (off >= sizeof(struct koneplus_profile_settings))
-		return 0;
-
-	if (off + count > sizeof(struct koneplus_profile_settings))
-		count = sizeof(struct koneplus_profile_settings) - off;
-
-	mutex_lock(&koneplus->koneplus_lock);
-	memcpy(buf, ((char const *)&koneplus->profile_settings[*(uint *)(attr->private)]) + off,
-			count);
-	mutex_unlock(&koneplus->koneplus_lock);
-
-	return count;
-}
-
-static ssize_t koneplus_sysfs_write_profile_settings(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
-	int retval = 0;
-	int difference;
-	int profile_number;
-	struct koneplus_profile_settings *profile_settings;
+	ssize_t retval;
 
-	if (off != 0 || count != sizeof(struct koneplus_profile_settings))
-		return -EINVAL;
-
-	profile_number = ((struct koneplus_profile_settings const *)buf)->number;
-	profile_settings = &koneplus->profile_settings[profile_number];
-
-	mutex_lock(&koneplus->koneplus_lock);
-	difference = memcmp(buf, profile_settings,
-			sizeof(struct koneplus_profile_settings));
-	if (difference) {
-		retval = koneplus_set_profile_settings(usb_dev,
-				(struct koneplus_profile_settings const *)buf);
-		if (!retval)
-			memcpy(profile_settings, buf,
-					sizeof(struct koneplus_profile_settings));
-	}
-	mutex_unlock(&koneplus->koneplus_lock);
-
+	retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
+			KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
 	if (retval)
 		return retval;
 
-	return sizeof(struct koneplus_profile_settings);
+	return koneplus_sysfs_read(fp, kobj, buf, off, count,
+			KONEPLUS_SIZE_PROFILE_SETTINGS,
+			KONEPLUS_COMMAND_PROFILE_SETTINGS);
 }
 
 static ssize_t koneplus_sysfs_read_profilex_buttons(struct file *fp,
@@ -295,57 +212,17 @@
 {
 	struct device *dev =
 			container_of(kobj, struct device, kobj)->parent->parent;
-	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
-
-	if (off >= sizeof(struct koneplus_profile_buttons))
-		return 0;
-
-	if (off + count > sizeof(struct koneplus_profile_buttons))
-		count = sizeof(struct koneplus_profile_buttons) - off;
-
-	mutex_lock(&koneplus->koneplus_lock);
-	memcpy(buf, ((char const *)&koneplus->profile_buttons[*(uint *)(attr->private)]) + off,
-			count);
-	mutex_unlock(&koneplus->koneplus_lock);
-
-	return count;
-}
-
-static ssize_t koneplus_sysfs_write_profile_buttons(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
-	int retval = 0;
-	int difference;
-	uint profile_number;
-	struct koneplus_profile_buttons *profile_buttons;
+	ssize_t retval;
 
-	if (off != 0 || count != sizeof(struct koneplus_profile_buttons))
-		return -EINVAL;
-
-	profile_number = ((struct koneplus_profile_buttons const *)buf)->number;
-	profile_buttons = &koneplus->profile_buttons[profile_number];
-
-	mutex_lock(&koneplus->koneplus_lock);
-	difference = memcmp(buf, profile_buttons,
-			sizeof(struct koneplus_profile_buttons));
-	if (difference) {
-		retval = koneplus_set_profile_buttons(usb_dev,
-				(struct koneplus_profile_buttons const *)buf);
-		if (!retval)
-			memcpy(profile_buttons, buf,
-					sizeof(struct koneplus_profile_buttons));
-	}
-	mutex_unlock(&koneplus->koneplus_lock);
-
+	retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
+			KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
 	if (retval)
 		return retval;
 
-	return sizeof(struct koneplus_profile_buttons);
+	return koneplus_sysfs_read(fp, kobj, buf, off, count,
+			KONEPLUS_SIZE_PROFILE_BUTTONS,
+			KONEPLUS_COMMAND_PROFILE_BUTTONS);
 }
 
 static ssize_t koneplus_sysfs_show_actual_profile(struct device *dev,
@@ -401,9 +278,20 @@
 static ssize_t koneplus_sysfs_show_firmware_version(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct koneplus_device *koneplus =
-			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
-	return snprintf(buf, PAGE_SIZE, "%d\n", koneplus->info.firmware_version);
+	struct koneplus_device *koneplus;
+	struct usb_device *usb_dev;
+	struct koneplus_info info;
+
+	dev = dev->parent->parent;
+	koneplus = hid_get_drvdata(dev_get_drvdata(dev));
+	usb_dev = interface_to_usbdev(to_usb_interface(dev));
+
+	mutex_lock(&koneplus->koneplus_lock);
+	roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_INFO,
+			&info, KONEPLUS_SIZE_INFO);
+	mutex_unlock(&koneplus->koneplus_lock);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
 }
 
 static struct device_attribute koneplus_attributes[] = {
@@ -419,132 +307,85 @@
 };
 
 static struct bin_attribute koneplus_bin_attributes[] = {
-	{
-		.attr = { .name = "sensor", .mode = 0660 },
-		.size = sizeof(struct koneplus_sensor),
-		.read = koneplus_sysfs_read_sensor,
-		.write = koneplus_sysfs_write_sensor
-	},
-	{
-		.attr = { .name = "tcu", .mode = 0220 },
-		.size = sizeof(struct koneplus_tcu),
-		.write = koneplus_sysfs_write_tcu
-	},
-	{
-		.attr = { .name = "tcu_image", .mode = 0440 },
-		.size = sizeof(struct koneplus_tcu_image),
-		.read = koneplus_sysfs_read_tcu_image
-	},
-	{
-		.attr = { .name = "profile_settings", .mode = 0220 },
-		.size = sizeof(struct koneplus_profile_settings),
-		.write = koneplus_sysfs_write_profile_settings
-	},
+	KONEPLUS_BIN_ATTRIBUTE_W(control, CONTROL),
+	KONEPLUS_BIN_ATTRIBUTE_RW(info, INFO),
+	KONEPLUS_BIN_ATTRIBUTE_W(talk, TALK),
+	KONEPLUS_BIN_ATTRIBUTE_W(macro, MACRO),
+	KONEPLUS_BIN_ATTRIBUTE_RW(sensor, SENSOR),
+	KONEPLUS_BIN_ATTRIBUTE_RW(tcu, TCU),
+	KONEPLUS_BIN_ATTRIBUTE_R(tcu_image, TCU_IMAGE),
+	KONEPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS),
+	KONEPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS),
 	{
 		.attr = { .name = "profile1_settings", .mode = 0440 },
-		.size = sizeof(struct koneplus_profile_settings),
+		.size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 		.read = koneplus_sysfs_read_profilex_settings,
 		.private = &profile_numbers[0]
 	},
 	{
 		.attr = { .name = "profile2_settings", .mode = 0440 },
-		.size = sizeof(struct koneplus_profile_settings),
+		.size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 		.read = koneplus_sysfs_read_profilex_settings,
 		.private = &profile_numbers[1]
 	},
 	{
 		.attr = { .name = "profile3_settings", .mode = 0440 },
-		.size = sizeof(struct koneplus_profile_settings),
+		.size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 		.read = koneplus_sysfs_read_profilex_settings,
 		.private = &profile_numbers[2]
 	},
 	{
 		.attr = { .name = "profile4_settings", .mode = 0440 },
-		.size = sizeof(struct koneplus_profile_settings),
+		.size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 		.read = koneplus_sysfs_read_profilex_settings,
 		.private = &profile_numbers[3]
 	},
 	{
 		.attr = { .name = "profile5_settings", .mode = 0440 },
-		.size = sizeof(struct koneplus_profile_settings),
+		.size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 		.read = koneplus_sysfs_read_profilex_settings,
 		.private = &profile_numbers[4]
 	},
 	{
-		.attr = { .name = "profile_buttons", .mode = 0220 },
-		.size = sizeof(struct koneplus_profile_buttons),
-		.write = koneplus_sysfs_write_profile_buttons
-	},
-	{
 		.attr = { .name = "profile1_buttons", .mode = 0440 },
-		.size = sizeof(struct koneplus_profile_buttons),
+		.size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 		.read = koneplus_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[0]
 	},
 	{
 		.attr = { .name = "profile2_buttons", .mode = 0440 },
-		.size = sizeof(struct koneplus_profile_buttons),
+		.size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 		.read = koneplus_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[1]
 	},
 	{
 		.attr = { .name = "profile3_buttons", .mode = 0440 },
-		.size = sizeof(struct koneplus_profile_buttons),
+		.size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 		.read = koneplus_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[2]
 	},
 	{
 		.attr = { .name = "profile4_buttons", .mode = 0440 },
-		.size = sizeof(struct koneplus_profile_buttons),
+		.size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 		.read = koneplus_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[3]
 	},
 	{
 		.attr = { .name = "profile5_buttons", .mode = 0440 },
-		.size = sizeof(struct koneplus_profile_buttons),
+		.size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 		.read = koneplus_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[4]
 	},
-	{
-		.attr = { .name = "macro", .mode = 0220 },
-		.size = sizeof(struct koneplus_macro),
-		.write = koneplus_sysfs_write_macro
-	},
-	{
-		.attr = { .name = "talk", .mode = 0220 },
-		.size = sizeof(struct koneplus_talk),
-		.write = koneplus_sysfs_write_talk
-	},
 	__ATTR_NULL
 };
 
 static int koneplus_init_koneplus_device_struct(struct usb_device *usb_dev,
 		struct koneplus_device *koneplus)
 {
-	int retval, i;
-	static uint wait = 200;
+	int retval;
 
 	mutex_init(&koneplus->koneplus_lock);
 
-	retval = koneplus_get_info(usb_dev, &koneplus->info);
-	if (retval)
-		return retval;
-
-	for (i = 0; i < 5; ++i) {
-		msleep(wait);
-		retval = koneplus_get_profile_settings(usb_dev,
-				&koneplus->profile_settings[i], i);
-		if (retval)
-			return retval;
-
-		msleep(wait);
-		retval = koneplus_get_profile_buttons(usb_dev,
-				&koneplus->profile_buttons[i], i);
-		if (retval)
-			return retval;
-	}
-
-	msleep(wait);
 	retval = koneplus_get_actual_profile(usb_dev);
 	if (retval < 0)
 		return retval;
@@ -709,6 +550,7 @@
 
 static const struct hid_device_id koneplus_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
 	{ }
 };
 
@@ -749,5 +591,5 @@
 module_exit(koneplus_exit);
 
 MODULE_AUTHOR("Stefan Achatz");
-MODULE_DESCRIPTION("USB Roccat Kone[+] driver");
+MODULE_DESCRIPTION("USB Roccat Kone[+]/XTD driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/hid/hid-roccat-koneplus.h b/drivers/hid/hid-roccat-koneplus.h
index 7074b2a..af7f57e 100644
--- a/drivers/hid/hid-roccat-koneplus.h
+++ b/drivers/hid/hid-roccat-koneplus.h
@@ -14,11 +14,19 @@
 
 #include <linux/types.h>
 
-struct koneplus_talk {
-	uint8_t command; /* KONEPLUS_COMMAND_TALK */
-	uint8_t size; /* always 0x10 */
-	uint8_t data[14];
-} __packed;
+enum {
+	KONEPLUS_SIZE_ACTUAL_PROFILE = 0x03,
+	KONEPLUS_SIZE_CONTROL = 0x03,
+	KONEPLUS_SIZE_FIRMWARE_WRITE = 0x0402,
+	KONEPLUS_SIZE_INFO = 0x06,
+	KONEPLUS_SIZE_MACRO = 0x0822,
+	KONEPLUS_SIZE_PROFILE_SETTINGS = 0x2b,
+	KONEPLUS_SIZE_PROFILE_BUTTONS = 0x4d,
+	KONEPLUS_SIZE_SENSOR = 0x06,
+	KONEPLUS_SIZE_TALK = 0x10,
+	KONEPLUS_SIZE_TCU = 0x04,
+	KONEPLUS_SIZE_TCU_IMAGE = 0x0404,
+};
 
 enum koneplus_control_requests {
 	KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS = 0x80,
@@ -31,45 +39,6 @@
 	uint8_t actual_profile; /* Range 0-4! */
 } __attribute__ ((__packed__));
 
-struct koneplus_profile_settings {
-	uint8_t command; /* KONEPLUS_COMMAND_PROFILE_SETTINGS */
-	uint8_t size; /* always 43 */
-	uint8_t number; /* range 0-4 */
-	uint8_t advanced_sensitivity;
-	uint8_t sensitivity_x;
-	uint8_t sensitivity_y;
-	uint8_t cpi_levels_enabled;
-	uint8_t cpi_levels_x[5];
-	uint8_t cpi_startup_level; /* range 0-4 */
-	uint8_t cpi_levels_y[5]; /* range 1-60 means 100-6000 cpi */
-	uint8_t unknown1;
-	uint8_t polling_rate;
-	uint8_t lights_enabled;
-	uint8_t light_effect_mode;
-	uint8_t color_flow_effect;
-	uint8_t light_effect_type;
-	uint8_t light_effect_speed;
-	uint8_t lights[16];
-	uint16_t checksum;
-} __attribute__ ((__packed__));
-
-struct koneplus_profile_buttons {
-	uint8_t command; /* KONEPLUS_COMMAND_PROFILE_BUTTONS */
-	uint8_t size; /* always 77 */
-	uint8_t number; /* range 0-4 */
-	uint8_t data[72];
-	uint16_t checksum;
-} __attribute__ ((__packed__));
-
-struct koneplus_macro {
-	uint8_t command; /* KONEPLUS_COMMAND_MACRO */
-	uint16_t size; /* always 0x822 little endian */
-	uint8_t profile; /* range 0-4 */
-	uint8_t button; /* range 0-23 */
-	uint8_t data[2075];
-	uint16_t checksum;
-} __attribute__ ((__packed__));
-
 struct koneplus_info {
 	uint8_t command; /* KONEPLUS_COMMAND_INFO */
 	uint8_t size; /* always 6 */
@@ -77,51 +46,15 @@
 	uint8_t unknown[3];
 } __attribute__ ((__packed__));
 
-struct koneplus_e {
-	uint8_t command; /* KONEPLUS_COMMAND_E */
-	uint8_t size; /* always 3 */
-	uint8_t unknown; /* TODO 1; 0 before firmware update */
-} __attribute__ ((__packed__));
-
-struct koneplus_sensor {
-	uint8_t command;  /* KONEPLUS_COMMAND_SENSOR */
-	uint8_t size; /* always 6 */
-	uint8_t data[4];
-} __attribute__ ((__packed__));
-
-struct koneplus_firmware_write {
-	uint8_t command; /* KONEPLUS_COMMAND_FIRMWARE_WRITE */
-	uint8_t unknown[1025];
-} __attribute__ ((__packed__));
-
-struct koneplus_firmware_write_control {
-	uint8_t command; /* KONEPLUS_COMMAND_FIRMWARE_WRITE_CONTROL */
-	/*
-	 * value is 1 on success
-	 * 3 means "not finished yet"
-	 */
-	uint8_t value;
-	uint8_t unknown; /* always 0x75 */
-} __attribute__ ((__packed__));
-
-struct koneplus_tcu {
-	uint16_t usb_command; /* KONEPLUS_USB_COMMAND_TCU */
-	uint8_t data[2];
-} __attribute__ ((__packed__));
-
-struct koneplus_tcu_image {
-	uint16_t usb_command; /* KONEPLUS_USB_COMMAND_TCU */
-	uint8_t data[1024];
-	uint16_t checksum;
-} __attribute__ ((__packed__));
-
 enum koneplus_commands {
 	KONEPLUS_COMMAND_ACTUAL_PROFILE = 0x5,
+	KONEPLUS_COMMAND_CONTROL = 0x4,
 	KONEPLUS_COMMAND_PROFILE_SETTINGS = 0x6,
 	KONEPLUS_COMMAND_PROFILE_BUTTONS = 0x7,
 	KONEPLUS_COMMAND_MACRO = 0x8,
 	KONEPLUS_COMMAND_INFO = 0x9,
 	KONEPLUS_COMMAND_TCU = 0xc,
+	KONEPLUS_COMMAND_TCU_IMAGE = 0xc,
 	KONEPLUS_COMMAND_E = 0xe,
 	KONEPLUS_COMMAND_SENSOR = 0xf,
 	KONEPLUS_COMMAND_TALK = 0x10,
@@ -187,10 +120,6 @@
 	int chrdev_minor;
 
 	struct mutex koneplus_lock;
-
-	struct koneplus_info info;
-	struct koneplus_profile_settings profile_settings[5];
-	struct koneplus_profile_buttons profile_buttons[5];
 };
 
 #endif
diff --git a/drivers/hid/hid-roccat-kovaplus.c b/drivers/hid/hid-roccat-kovaplus.c
index ca6527a..b8b3778 100644
--- a/drivers/hid/hid-roccat-kovaplus.c
+++ b/drivers/hid/hid-roccat-kovaplus.c
@@ -70,13 +70,6 @@
 	return kovaplus_send_control(usb_dev, number, request);
 }
 
-static int kovaplus_get_info(struct usb_device *usb_dev,
-		struct kovaplus_info *buf)
-{
-	return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
-			buf, sizeof(struct kovaplus_info));
-}
-
 static int kovaplus_get_profile_settings(struct usb_device *usb_dev,
 		struct kovaplus_profile_settings *buf, uint number)
 {
@@ -88,15 +81,7 @@
 		return retval;
 
 	return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
-			buf, sizeof(struct kovaplus_profile_settings));
-}
-
-static int kovaplus_set_profile_settings(struct usb_device *usb_dev,
-		struct kovaplus_profile_settings const *settings)
-{
-	return roccat_common2_send_with_status(usb_dev,
-			KOVAPLUS_COMMAND_PROFILE_SETTINGS,
-			settings, sizeof(struct kovaplus_profile_settings));
+			buf, KOVAPLUS_SIZE_PROFILE_SETTINGS);
 }
 
 static int kovaplus_get_profile_buttons(struct usb_device *usb_dev,
@@ -110,15 +95,7 @@
 		return retval;
 
 	return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
-			buf, sizeof(struct kovaplus_profile_buttons));
-}
-
-static int kovaplus_set_profile_buttons(struct usb_device *usb_dev,
-		struct kovaplus_profile_buttons const *buttons)
-{
-	return roccat_common2_send_with_status(usb_dev,
-			KOVAPLUS_COMMAND_PROFILE_BUTTONS,
-			buttons, sizeof(struct kovaplus_profile_buttons));
+			buf, KOVAPLUS_SIZE_PROFILE_BUTTONS);
 }
 
 /* retval is 0-4 on success, < 0 on error */
@@ -147,63 +124,122 @@
 			&buf, sizeof(struct kovaplus_actual_profile));
 }
 
+static ssize_t kovaplus_sysfs_read(struct file *fp, struct kobject *kobj,
+		char *buf, loff_t off, size_t count,
+		size_t real_size, uint command)
+{
+	struct device *dev =
+			container_of(kobj, struct device, kobj)->parent->parent;
+	struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	int retval;
+
+	if (off >= real_size)
+		return 0;
+
+	if (off != 0 || count != real_size)
+		return -EINVAL;
+
+	mutex_lock(&kovaplus->kovaplus_lock);
+	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
+	mutex_unlock(&kovaplus->kovaplus_lock);
+
+	if (retval)
+		return retval;
+
+	return real_size;
+}
+
+static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj,
+		void const *buf, loff_t off, size_t count,
+		size_t real_size, uint command)
+{
+	struct device *dev =
+			container_of(kobj, struct device, kobj)->parent->parent;
+	struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	int retval;
+
+	if (off != 0 || count != real_size)
+		return -EINVAL;
+
+	mutex_lock(&kovaplus->kovaplus_lock);
+	retval = roccat_common2_send_with_status(usb_dev, command,
+			buf, real_size);
+	mutex_unlock(&kovaplus->kovaplus_lock);
+
+	if (retval)
+		return retval;
+
+	return real_size;
+}
+
+#define KOVAPLUS_SYSFS_W(thingy, THINGY) \
+static ssize_t kovaplus_sysfs_write_ ## thingy(struct file *fp, \
+		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
+		loff_t off, size_t count) \
+{ \
+	return kovaplus_sysfs_write(fp, kobj, buf, off, count, \
+			KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
+}
+
+#define KOVAPLUS_SYSFS_R(thingy, THINGY) \
+static ssize_t kovaplus_sysfs_read_ ## thingy(struct file *fp, \
+		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
+		loff_t off, size_t count) \
+{ \
+	return kovaplus_sysfs_read(fp, kobj, buf, off, count, \
+			KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
+}
+
+#define KOVAPLUS_SYSFS_RW(thingy, THINGY) \
+KOVAPLUS_SYSFS_W(thingy, THINGY) \
+KOVAPLUS_SYSFS_R(thingy, THINGY)
+
+#define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
+{ \
+	.attr = { .name = #thingy, .mode = 0660 }, \
+	.size = KOVAPLUS_SIZE_ ## THINGY, \
+	.read = kovaplus_sysfs_read_ ## thingy, \
+	.write = kovaplus_sysfs_write_ ## thingy \
+}
+
+#define KOVAPLUS_BIN_ATTRIBUTE_R(thingy, THINGY) \
+{ \
+	.attr = { .name = #thingy, .mode = 0440 }, \
+	.size = KOVAPLUS_SIZE_ ## THINGY, \
+	.read = kovaplus_sysfs_read_ ## thingy, \
+}
+
+#define KOVAPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
+{ \
+	.attr = { .name = #thingy, .mode = 0220 }, \
+	.size = KOVAPLUS_SIZE_ ## THINGY, \
+	.write = kovaplus_sysfs_write_ ## thingy \
+}
+
+KOVAPLUS_SYSFS_W(control, CONTROL)
+KOVAPLUS_SYSFS_RW(info, INFO)
+KOVAPLUS_SYSFS_RW(profile_settings, PROFILE_SETTINGS)
+KOVAPLUS_SYSFS_RW(profile_buttons, PROFILE_BUTTONS)
+
 static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count)
 {
 	struct device *dev =
 			container_of(kobj, struct device, kobj)->parent->parent;
-	struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
-
-	if (off >= sizeof(struct kovaplus_profile_settings))
-		return 0;
-
-	if (off + count > sizeof(struct kovaplus_profile_settings))
-		count = sizeof(struct kovaplus_profile_settings) - off;
-
-	mutex_lock(&kovaplus->kovaplus_lock);
-	memcpy(buf, ((char const *)&kovaplus->profile_settings[*(uint *)(attr->private)]) + off,
-			count);
-	mutex_unlock(&kovaplus->kovaplus_lock);
-
-	return count;
-}
-
-static ssize_t kovaplus_sysfs_write_profile_settings(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
-	int retval = 0;
-	int difference;
-	int profile_index;
-	struct kovaplus_profile_settings *profile_settings;
+	ssize_t retval;
 
-	if (off != 0 || count != sizeof(struct kovaplus_profile_settings))
-		return -EINVAL;
-
-	profile_index = ((struct kovaplus_profile_settings const *)buf)->profile_index;
-	profile_settings = &kovaplus->profile_settings[profile_index];
-
-	mutex_lock(&kovaplus->kovaplus_lock);
-	difference = memcmp(buf, profile_settings,
-			sizeof(struct kovaplus_profile_settings));
-	if (difference) {
-		retval = kovaplus_set_profile_settings(usb_dev,
-				(struct kovaplus_profile_settings const *)buf);
-		if (!retval)
-			memcpy(profile_settings, buf,
-					sizeof(struct kovaplus_profile_settings));
-	}
-	mutex_unlock(&kovaplus->kovaplus_lock);
-
+	retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
+			KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
 	if (retval)
 		return retval;
 
-	return sizeof(struct kovaplus_profile_settings);
+	return kovaplus_sysfs_read(fp, kobj, buf, off, count,
+			KOVAPLUS_SIZE_PROFILE_SETTINGS,
+			KOVAPLUS_COMMAND_PROFILE_SETTINGS);
 }
 
 static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
@@ -212,57 +248,17 @@
 {
 	struct device *dev =
 			container_of(kobj, struct device, kobj)->parent->parent;
-	struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
-
-	if (off >= sizeof(struct kovaplus_profile_buttons))
-		return 0;
-
-	if (off + count > sizeof(struct kovaplus_profile_buttons))
-		count = sizeof(struct kovaplus_profile_buttons) - off;
-
-	mutex_lock(&kovaplus->kovaplus_lock);
-	memcpy(buf, ((char const *)&kovaplus->profile_buttons[*(uint *)(attr->private)]) + off,
-			count);
-	mutex_unlock(&kovaplus->kovaplus_lock);
-
-	return count;
-}
-
-static ssize_t kovaplus_sysfs_write_profile_buttons(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
-	int retval = 0;
-	int difference;
-	uint profile_index;
-	struct kovaplus_profile_buttons *profile_buttons;
+	ssize_t retval;
 
-	if (off != 0 || count != sizeof(struct kovaplus_profile_buttons))
-		return -EINVAL;
-
-	profile_index = ((struct kovaplus_profile_buttons const *)buf)->profile_index;
-	profile_buttons = &kovaplus->profile_buttons[profile_index];
-
-	mutex_lock(&kovaplus->kovaplus_lock);
-	difference = memcmp(buf, profile_buttons,
-			sizeof(struct kovaplus_profile_buttons));
-	if (difference) {
-		retval = kovaplus_set_profile_buttons(usb_dev,
-				(struct kovaplus_profile_buttons const *)buf);
-		if (!retval)
-			memcpy(profile_buttons, buf,
-					sizeof(struct kovaplus_profile_buttons));
-	}
-	mutex_unlock(&kovaplus->kovaplus_lock);
-
+	retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
+			KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
 	if (retval)
 		return retval;
 
-	return sizeof(struct kovaplus_profile_buttons);
+	return kovaplus_sysfs_read(fp, kobj, buf, off, count,
+			KOVAPLUS_SIZE_PROFILE_BUTTONS,
+			KOVAPLUS_COMMAND_PROFILE_BUTTONS);
 }
 
 static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
@@ -342,9 +338,20 @@
 static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct kovaplus_device *kovaplus =
-			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
-	return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->info.firmware_version);
+	struct kovaplus_device *kovaplus;
+	struct usb_device *usb_dev;
+	struct kovaplus_info info;
+
+	dev = dev->parent->parent;
+	kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
+	usb_dev = interface_to_usbdev(to_usb_interface(dev));
+
+	mutex_lock(&kovaplus->kovaplus_lock);
+	roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
+			&info, KOVAPLUS_SIZE_INFO);
+	mutex_unlock(&kovaplus->kovaplus_lock);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
 }
 
 static struct device_attribute kovaplus_attributes[] = {
@@ -363,73 +370,67 @@
 };
 
 static struct bin_attribute kovaplus_bin_attributes[] = {
-	{
-		.attr = { .name = "profile_settings", .mode = 0220 },
-		.size = sizeof(struct kovaplus_profile_settings),
-		.write = kovaplus_sysfs_write_profile_settings
-	},
+	KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL),
+	KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO),
+	KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS),
+	KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS),
 	{
 		.attr = { .name = "profile1_settings", .mode = 0440 },
-		.size = sizeof(struct kovaplus_profile_settings),
+		.size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 		.read = kovaplus_sysfs_read_profilex_settings,
 		.private = &profile_numbers[0]
 	},
 	{
 		.attr = { .name = "profile2_settings", .mode = 0440 },
-		.size = sizeof(struct kovaplus_profile_settings),
+		.size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 		.read = kovaplus_sysfs_read_profilex_settings,
 		.private = &profile_numbers[1]
 	},
 	{
 		.attr = { .name = "profile3_settings", .mode = 0440 },
-		.size = sizeof(struct kovaplus_profile_settings),
+		.size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 		.read = kovaplus_sysfs_read_profilex_settings,
 		.private = &profile_numbers[2]
 	},
 	{
 		.attr = { .name = "profile4_settings", .mode = 0440 },
-		.size = sizeof(struct kovaplus_profile_settings),
+		.size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 		.read = kovaplus_sysfs_read_profilex_settings,
 		.private = &profile_numbers[3]
 	},
 	{
 		.attr = { .name = "profile5_settings", .mode = 0440 },
-		.size = sizeof(struct kovaplus_profile_settings),
+		.size = KOVAPLUS_SIZE_PROFILE_SETTINGS,
 		.read = kovaplus_sysfs_read_profilex_settings,
 		.private = &profile_numbers[4]
 	},
 	{
-		.attr = { .name = "profile_buttons", .mode = 0220 },
-		.size = sizeof(struct kovaplus_profile_buttons),
-		.write = kovaplus_sysfs_write_profile_buttons
-	},
-	{
 		.attr = { .name = "profile1_buttons", .mode = 0440 },
-		.size = sizeof(struct kovaplus_profile_buttons),
+		.size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 		.read = kovaplus_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[0]
 	},
 	{
 		.attr = { .name = "profile2_buttons", .mode = 0440 },
-		.size = sizeof(struct kovaplus_profile_buttons),
+		.size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 		.read = kovaplus_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[1]
 	},
 	{
 		.attr = { .name = "profile3_buttons", .mode = 0440 },
-		.size = sizeof(struct kovaplus_profile_buttons),
+		.size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 		.read = kovaplus_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[2]
 	},
 	{
 		.attr = { .name = "profile4_buttons", .mode = 0440 },
-		.size = sizeof(struct kovaplus_profile_buttons),
+		.size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 		.read = kovaplus_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[3]
 	},
 	{
 		.attr = { .name = "profile5_buttons", .mode = 0440 },
-		.size = sizeof(struct kovaplus_profile_buttons),
+		.size = KOVAPLUS_SIZE_PROFILE_BUTTONS,
 		.read = kovaplus_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[4]
 	},
@@ -444,10 +445,6 @@
 
 	mutex_init(&kovaplus->kovaplus_lock);
 
-	retval = kovaplus_get_info(usb_dev, &kovaplus->info);
-	if (retval)
-		return retval;
-
 	for (i = 0; i < 5; ++i) {
 		msleep(wait);
 		retval = kovaplus_get_profile_settings(usb_dev,
diff --git a/drivers/hid/hid-roccat-kovaplus.h b/drivers/hid/hid-roccat-kovaplus.h
index f82daa1..fbb7a16 100644
--- a/drivers/hid/hid-roccat-kovaplus.h
+++ b/drivers/hid/hid-roccat-kovaplus.h
@@ -14,6 +14,13 @@
 
 #include <linux/types.h>
 
+enum {
+	KOVAPLUS_SIZE_CONTROL = 0x03,
+	KOVAPLUS_SIZE_INFO = 0x06,
+	KOVAPLUS_SIZE_PROFILE_SETTINGS = 0x10,
+	KOVAPLUS_SIZE_PROFILE_BUTTONS = 0x17,
+};
+
 enum kovaplus_control_requests {
 	/* write; value = profile number range 0-4 */
 	KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS = 0x10,
@@ -53,15 +60,9 @@
 	uint8_t unknown[3];
 } __packed;
 
-/* writes 1 on plugin */
-struct kovaplus_a {
-	uint8_t command; /* KOVAPLUS_COMMAND_A */
-	uint8_t size; /* 3 */
-	uint8_t unknown;
-} __packed;
-
 enum kovaplus_commands {
 	KOVAPLUS_COMMAND_ACTUAL_PROFILE = 0x5,
+	KOVAPLUS_COMMAND_CONTROL = 0x4,
 	KOVAPLUS_COMMAND_PROFILE_SETTINGS = 0x6,
 	KOVAPLUS_COMMAND_PROFILE_BUTTONS = 0x7,
 	KOVAPLUS_COMMAND_INFO = 0x9,
@@ -125,7 +126,6 @@
 	int roccat_claimed;
 	int chrdev_minor;
 	struct mutex kovaplus_lock;
-	struct kovaplus_info info;
 	struct kovaplus_profile_settings profile_settings[5];
 	struct kovaplus_profile_buttons profile_buttons[5];
 };
diff --git a/drivers/hid/hid-roccat-lua.c b/drivers/hid/hid-roccat-lua.c
new file mode 100644
index 0000000..5084fb4
--- /dev/null
+++ b/drivers/hid/hid-roccat-lua.c
@@ -0,0 +1,227 @@
+/*
+ * Roccat Lua driver for Linux
+ *
+ * Copyright (c) 2012 Stefan Achatz <erazor_de@users.sourceforge.net>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+/*
+ * Roccat Lua is a gamer mouse which cpi, button and light settings can be
+ * configured.
+ */
+
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/hid-roccat.h>
+#include "hid-ids.h"
+#include "hid-roccat-common.h"
+#include "hid-roccat-lua.h"
+
+static ssize_t lua_sysfs_read(struct file *fp, struct kobject *kobj,
+		char *buf, loff_t off, size_t count,
+		size_t real_size, uint command)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct lua_device *lua = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	int retval;
+
+	if (off >= real_size)
+		return 0;
+
+	if (off != 0 || count != real_size)
+		return -EINVAL;
+
+	mutex_lock(&lua->lua_lock);
+	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
+	mutex_unlock(&lua->lua_lock);
+
+	return retval ? retval : real_size;
+}
+
+static ssize_t lua_sysfs_write(struct file *fp, struct kobject *kobj,
+		void const *buf, loff_t off, size_t count,
+		size_t real_size, uint command)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct lua_device *lua = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	int retval;
+
+	if (off != 0 || count != real_size)
+		return -EINVAL;
+
+	mutex_lock(&lua->lua_lock);
+	retval = roccat_common2_send(usb_dev, command, (void *)buf, real_size);
+	mutex_unlock(&lua->lua_lock);
+
+	return retval ? retval : real_size;
+}
+
+#define LUA_SYSFS_W(thingy, THINGY) \
+static ssize_t lua_sysfs_write_ ## thingy(struct file *fp, \
+		struct kobject *kobj, struct bin_attribute *attr, \
+		char *buf, loff_t off, size_t count) \
+{ \
+	return lua_sysfs_write(fp, kobj, buf, off, count, \
+			LUA_SIZE_ ## THINGY, LUA_COMMAND_ ## THINGY); \
+}
+
+#define LUA_SYSFS_R(thingy, THINGY) \
+static ssize_t lua_sysfs_read_ ## thingy(struct file *fp, \
+		struct kobject *kobj, struct bin_attribute *attr, \
+		char *buf, loff_t off, size_t count) \
+{ \
+	return lua_sysfs_read(fp, kobj, buf, off, count, \
+			LUA_SIZE_ ## THINGY, LUA_COMMAND_ ## THINGY); \
+}
+
+#define LUA_BIN_ATTRIBUTE_RW(thingy, THINGY) \
+LUA_SYSFS_W(thingy, THINGY) \
+LUA_SYSFS_R(thingy, THINGY) \
+static struct bin_attribute lua_ ## thingy ## _attr = { \
+	.attr = { .name = #thingy, .mode = 0660 }, \
+	.size = LUA_SIZE_ ## THINGY, \
+	.read = lua_sysfs_read_ ## thingy, \
+	.write = lua_sysfs_write_ ## thingy \
+};
+
+LUA_BIN_ATTRIBUTE_RW(control, CONTROL)
+
+static int lua_create_sysfs_attributes(struct usb_interface *intf)
+{
+	return sysfs_create_bin_file(&intf->dev.kobj, &lua_control_attr);
+}
+
+static void lua_remove_sysfs_attributes(struct usb_interface *intf)
+{
+	sysfs_remove_bin_file(&intf->dev.kobj, &lua_control_attr);
+}
+
+static int lua_init_lua_device_struct(struct usb_device *usb_dev,
+		struct lua_device *lua)
+{
+	mutex_init(&lua->lua_lock);
+
+	return 0;
+}
+
+static int lua_init_specials(struct hid_device *hdev)
+{
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct usb_device *usb_dev = interface_to_usbdev(intf);
+	struct lua_device *lua;
+	int retval;
+
+	lua = kzalloc(sizeof(*lua), GFP_KERNEL);
+	if (!lua) {
+		hid_err(hdev, "can't alloc device descriptor\n");
+		return -ENOMEM;
+	}
+	hid_set_drvdata(hdev, lua);
+
+	retval = lua_init_lua_device_struct(usb_dev, lua);
+	if (retval) {
+		hid_err(hdev, "couldn't init struct lua_device\n");
+		goto exit;
+	}
+
+	retval = lua_create_sysfs_attributes(intf);
+	if (retval) {
+		hid_err(hdev, "cannot create sysfs files\n");
+		goto exit;
+	}
+
+	return 0;
+exit:
+	kfree(lua);
+	return retval;
+}
+
+static void lua_remove_specials(struct hid_device *hdev)
+{
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct lua_device *lua;
+
+	lua_remove_sysfs_attributes(intf);
+
+	lua = hid_get_drvdata(hdev);
+	kfree(lua);
+}
+
+static int lua_probe(struct hid_device *hdev,
+		const struct hid_device_id *id)
+{
+	int retval;
+
+	retval = hid_parse(hdev);
+	if (retval) {
+		hid_err(hdev, "parse failed\n");
+		goto exit;
+	}
+
+	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	if (retval) {
+		hid_err(hdev, "hw start failed\n");
+		goto exit;
+	}
+
+	retval = lua_init_specials(hdev);
+	if (retval) {
+		hid_err(hdev, "couldn't install mouse\n");
+		goto exit_stop;
+	}
+
+	return 0;
+
+exit_stop:
+	hid_hw_stop(hdev);
+exit:
+	return retval;
+}
+
+static void lua_remove(struct hid_device *hdev)
+{
+	lua_remove_specials(hdev);
+	hid_hw_stop(hdev);
+}
+
+static const struct hid_device_id lua_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(hid, lua_devices);
+
+static struct hid_driver lua_driver = {
+		.name = "lua",
+		.id_table = lua_devices,
+		.probe = lua_probe,
+		.remove = lua_remove
+};
+
+static int __init lua_init(void)
+{
+	return hid_register_driver(&lua_driver);
+}
+
+static void __exit lua_exit(void)
+{
+	hid_unregister_driver(&lua_driver);
+}
+
+module_init(lua_init);
+module_exit(lua_exit);
+
+MODULE_AUTHOR("Stefan Achatz");
+MODULE_DESCRIPTION("USB Roccat Lua driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/hid/hid-roccat-lua.h b/drivers/hid/hid-roccat-lua.h
new file mode 100644
index 0000000..547d77a3
--- /dev/null
+++ b/drivers/hid/hid-roccat-lua.h
@@ -0,0 +1,29 @@
+#ifndef __HID_ROCCAT_LUA_H
+#define __HID_ROCCAT_LUA_H
+
+/*
+ * Copyright (c) 2012 Stefan Achatz <erazor_de@users.sourceforge.net>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/types.h>
+
+enum {
+	LUA_SIZE_CONTROL = 8,
+};
+
+enum lua_commands {
+	LUA_COMMAND_CONTROL = 3,
+};
+
+struct lua_device {
+	struct mutex lua_lock;
+};
+
+#endif
diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c
index 1317c17..d4f1e3b 100644
--- a/drivers/hid/hid-roccat-pyra.c
+++ b/drivers/hid/hid-roccat-pyra.c
@@ -66,48 +66,14 @@
 	if (retval)
 		return retval;
 	return roccat_common2_receive(usb_dev, PYRA_COMMAND_PROFILE_SETTINGS,
-			buf, sizeof(struct pyra_profile_settings));
-}
-
-static int pyra_get_profile_buttons(struct usb_device *usb_dev,
-		struct pyra_profile_buttons *buf, int number)
-{
-	int retval;
-	retval = pyra_send_control(usb_dev, number,
-			PYRA_CONTROL_REQUEST_PROFILE_BUTTONS);
-	if (retval)
-		return retval;
-	return roccat_common2_receive(usb_dev, PYRA_COMMAND_PROFILE_BUTTONS,
-			buf, sizeof(struct pyra_profile_buttons));
+			buf, PYRA_SIZE_PROFILE_SETTINGS);
 }
 
 static int pyra_get_settings(struct usb_device *usb_dev,
 		struct pyra_settings *buf)
 {
 	return roccat_common2_receive(usb_dev, PYRA_COMMAND_SETTINGS,
-			buf, sizeof(struct pyra_settings));
-}
-
-static int pyra_get_info(struct usb_device *usb_dev, struct pyra_info *buf)
-{
-	return roccat_common2_receive(usb_dev, PYRA_COMMAND_INFO,
-			buf, sizeof(struct pyra_info));
-}
-
-static int pyra_set_profile_settings(struct usb_device *usb_dev,
-		struct pyra_profile_settings const *settings)
-{
-	return roccat_common2_send_with_status(usb_dev,
-			PYRA_COMMAND_PROFILE_SETTINGS, settings,
-			sizeof(struct pyra_profile_settings));
-}
-
-static int pyra_set_profile_buttons(struct usb_device *usb_dev,
-		struct pyra_profile_buttons const *buttons)
-{
-	return roccat_common2_send_with_status(usb_dev,
-			PYRA_COMMAND_PROFILE_BUTTONS, buttons,
-			sizeof(struct pyra_profile_buttons));
+			buf, PYRA_SIZE_SETTINGS);
 }
 
 static int pyra_set_settings(struct usb_device *usb_dev,
@@ -115,29 +81,125 @@
 {
 	return roccat_common2_send_with_status(usb_dev,
 			PYRA_COMMAND_SETTINGS, settings,
-			sizeof(struct pyra_settings));
+			PYRA_SIZE_SETTINGS);
 }
 
+static ssize_t pyra_sysfs_read(struct file *fp, struct kobject *kobj,
+		char *buf, loff_t off, size_t count,
+		size_t real_size, uint command)
+{
+	struct device *dev =
+			container_of(kobj, struct device, kobj)->parent->parent;
+	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	int retval;
+
+	if (off >= real_size)
+		return 0;
+
+	if (off != 0 || count != real_size)
+		return -EINVAL;
+
+	mutex_lock(&pyra->pyra_lock);
+	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
+	mutex_unlock(&pyra->pyra_lock);
+
+	if (retval)
+		return retval;
+
+	return real_size;
+}
+
+static ssize_t pyra_sysfs_write(struct file *fp, struct kobject *kobj,
+		void const *buf, loff_t off, size_t count,
+		size_t real_size, uint command)
+{
+	struct device *dev =
+			container_of(kobj, struct device, kobj)->parent->parent;
+	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	int retval;
+
+	if (off != 0 || count != real_size)
+		return -EINVAL;
+
+	mutex_lock(&pyra->pyra_lock);
+	retval = roccat_common2_send_with_status(usb_dev, command, (void *)buf, real_size);
+	mutex_unlock(&pyra->pyra_lock);
+
+	if (retval)
+		return retval;
+
+	return real_size;
+}
+
+#define PYRA_SYSFS_W(thingy, THINGY) \
+static ssize_t pyra_sysfs_write_ ## thingy(struct file *fp, \
+		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
+		loff_t off, size_t count) \
+{ \
+	return pyra_sysfs_write(fp, kobj, buf, off, count, \
+			PYRA_SIZE_ ## THINGY, PYRA_COMMAND_ ## THINGY); \
+}
+
+#define PYRA_SYSFS_R(thingy, THINGY) \
+static ssize_t pyra_sysfs_read_ ## thingy(struct file *fp, \
+		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
+		loff_t off, size_t count) \
+{ \
+	return pyra_sysfs_read(fp, kobj, buf, off, count, \
+			PYRA_SIZE_ ## THINGY, PYRA_COMMAND_ ## THINGY); \
+}
+
+#define PYRA_SYSFS_RW(thingy, THINGY) \
+PYRA_SYSFS_W(thingy, THINGY) \
+PYRA_SYSFS_R(thingy, THINGY)
+
+#define PYRA_BIN_ATTRIBUTE_RW(thingy, THINGY) \
+{ \
+	.attr = { .name = #thingy, .mode = 0660 }, \
+	.size = PYRA_SIZE_ ## THINGY, \
+	.read = pyra_sysfs_read_ ## thingy, \
+	.write = pyra_sysfs_write_ ## thingy \
+}
+
+#define PYRA_BIN_ATTRIBUTE_R(thingy, THINGY) \
+{ \
+	.attr = { .name = #thingy, .mode = 0440 }, \
+	.size = PYRA_SIZE_ ## THINGY, \
+	.read = pyra_sysfs_read_ ## thingy, \
+}
+
+#define PYRA_BIN_ATTRIBUTE_W(thingy, THINGY) \
+{ \
+	.attr = { .name = #thingy, .mode = 0220 }, \
+	.size = PYRA_SIZE_ ## THINGY, \
+	.write = pyra_sysfs_write_ ## thingy \
+}
+
+PYRA_SYSFS_W(control, CONTROL)
+PYRA_SYSFS_RW(info, INFO)
+PYRA_SYSFS_RW(profile_settings, PROFILE_SETTINGS)
+PYRA_SYSFS_RW(profile_buttons, PROFILE_BUTTONS)
+PYRA_SYSFS_R(settings, SETTINGS)
+
 static ssize_t pyra_sysfs_read_profilex_settings(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count)
 {
 	struct device *dev =
 			container_of(kobj, struct device, kobj)->parent->parent;
-	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	ssize_t retval;
 
-	if (off >= sizeof(struct pyra_profile_settings))
-		return 0;
+	retval = pyra_send_control(usb_dev, *(uint *)(attr->private),
+			PYRA_CONTROL_REQUEST_PROFILE_SETTINGS);
+	if (retval)
+		return retval;
 
-	if (off + count > sizeof(struct pyra_profile_settings))
-		count = sizeof(struct pyra_profile_settings) - off;
-
-	mutex_lock(&pyra->pyra_lock);
-	memcpy(buf, ((char const *)&pyra->profile_settings[*(uint *)(attr->private)]) + off,
-			count);
-	mutex_unlock(&pyra->pyra_lock);
-
-	return count;
+	return pyra_sysfs_read(fp, kobj, buf, off, count,
+			PYRA_SIZE_PROFILE_SETTINGS,
+			PYRA_COMMAND_PROFILE_SETTINGS);
 }
 
 static ssize_t pyra_sysfs_read_profilex_buttons(struct file *fp,
@@ -146,115 +208,17 @@
 {
 	struct device *dev =
 			container_of(kobj, struct device, kobj)->parent->parent;
-	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
-
-	if (off >= sizeof(struct pyra_profile_buttons))
-		return 0;
-
-	if (off + count > sizeof(struct pyra_profile_buttons))
-		count = sizeof(struct pyra_profile_buttons) - off;
-
-	mutex_lock(&pyra->pyra_lock);
-	memcpy(buf, ((char const *)&pyra->profile_buttons[*(uint *)(attr->private)]) + off,
-			count);
-	mutex_unlock(&pyra->pyra_lock);
-
-	return count;
-}
-
-static ssize_t pyra_sysfs_write_profile_settings(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
-	int retval = 0;
-	int difference;
-	int profile_number;
-	struct pyra_profile_settings *profile_settings;
+	ssize_t retval;
 
-	if (off != 0 || count != sizeof(struct pyra_profile_settings))
-		return -EINVAL;
-
-	profile_number = ((struct pyra_profile_settings const *)buf)->number;
-	profile_settings = &pyra->profile_settings[profile_number];
-
-	mutex_lock(&pyra->pyra_lock);
-	difference = memcmp(buf, profile_settings,
-			sizeof(struct pyra_profile_settings));
-	if (difference) {
-		retval = pyra_set_profile_settings(usb_dev,
-				(struct pyra_profile_settings const *)buf);
-		if (!retval)
-			memcpy(profile_settings, buf,
-					sizeof(struct pyra_profile_settings));
-	}
-	mutex_unlock(&pyra->pyra_lock);
-
+	retval = pyra_send_control(usb_dev, *(uint *)(attr->private),
+			PYRA_CONTROL_REQUEST_PROFILE_BUTTONS);
 	if (retval)
 		return retval;
 
-	return sizeof(struct pyra_profile_settings);
-}
-
-static ssize_t pyra_sysfs_write_profile_buttons(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
-	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
-	int retval = 0;
-	int difference;
-	int profile_number;
-	struct pyra_profile_buttons *profile_buttons;
-
-	if (off != 0 || count != sizeof(struct pyra_profile_buttons))
-		return -EINVAL;
-
-	profile_number = ((struct pyra_profile_buttons const *)buf)->number;
-	profile_buttons = &pyra->profile_buttons[profile_number];
-
-	mutex_lock(&pyra->pyra_lock);
-	difference = memcmp(buf, profile_buttons,
-			sizeof(struct pyra_profile_buttons));
-	if (difference) {
-		retval = pyra_set_profile_buttons(usb_dev,
-				(struct pyra_profile_buttons const *)buf);
-		if (!retval)
-			memcpy(profile_buttons, buf,
-					sizeof(struct pyra_profile_buttons));
-	}
-	mutex_unlock(&pyra->pyra_lock);
-
-	if (retval)
-		return retval;
-
-	return sizeof(struct pyra_profile_buttons);
-}
-
-static ssize_t pyra_sysfs_read_settings(struct file *fp,
-		struct kobject *kobj, struct bin_attribute *attr, char *buf,
-		loff_t off, size_t count)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
-
-	if (off >= sizeof(struct pyra_settings))
-		return 0;
-
-	if (off + count > sizeof(struct pyra_settings))
-		count = sizeof(struct pyra_settings) - off;
-
-	mutex_lock(&pyra->pyra_lock);
-	memcpy(buf, ((char const *)&pyra->settings) + off, count);
-	mutex_unlock(&pyra->pyra_lock);
-
-	return count;
+	return pyra_sysfs_read(fp, kobj, buf, off, count,
+			PYRA_SIZE_PROFILE_BUTTONS,
+			PYRA_COMMAND_PROFILE_BUTTONS);
 }
 
 static ssize_t pyra_sysfs_write_settings(struct file *fp,
@@ -266,35 +230,32 @@
 	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval = 0;
-	int difference;
 	struct pyra_roccat_report roccat_report;
+	struct pyra_settings const *settings;
 
-	if (off != 0 || count != sizeof(struct pyra_settings))
+	if (off != 0 || count != PYRA_SIZE_SETTINGS)
 		return -EINVAL;
 
 	mutex_lock(&pyra->pyra_lock);
-	difference = memcmp(buf, &pyra->settings, sizeof(struct pyra_settings));
-	if (difference) {
-		retval = pyra_set_settings(usb_dev,
-				(struct pyra_settings const *)buf);
-		if (retval) {
-			mutex_unlock(&pyra->pyra_lock);
-			return retval;
-		}
 
-		memcpy(&pyra->settings, buf,
-				sizeof(struct pyra_settings));
+	settings = (struct pyra_settings const *)buf;
 
-		profile_activated(pyra, pyra->settings.startup_profile);
-
-		roccat_report.type = PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2;
-		roccat_report.value = pyra->settings.startup_profile + 1;
-		roccat_report.key = 0;
-		roccat_report_event(pyra->chrdev_minor,
-				(uint8_t const *)&roccat_report);
+	retval = pyra_set_settings(usb_dev, settings);
+	if (retval) {
+		mutex_unlock(&pyra->pyra_lock);
+		return retval;
 	}
+
+	profile_activated(pyra, settings->startup_profile);
+
+	roccat_report.type = PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2;
+	roccat_report.value = settings->startup_profile + 1;
+	roccat_report.key = 0;
+	roccat_report_event(pyra->chrdev_minor,
+			(uint8_t const *)&roccat_report);
+
 	mutex_unlock(&pyra->pyra_lock);
-	return sizeof(struct pyra_settings);
+	return PYRA_SIZE_SETTINGS;
 }
 
 
@@ -311,23 +272,34 @@
 {
 	struct pyra_device *pyra =
 			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
-	return snprintf(buf, PAGE_SIZE, "%d\n", pyra->actual_profile);
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	struct pyra_settings settings;
+
+	mutex_lock(&pyra->pyra_lock);
+	roccat_common2_receive(usb_dev, PYRA_COMMAND_SETTINGS,
+			&settings, PYRA_SIZE_SETTINGS);
+	mutex_unlock(&pyra->pyra_lock);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", settings.startup_profile);
 }
 
 static ssize_t pyra_sysfs_show_firmware_version(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct pyra_device *pyra =
-			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
-	return snprintf(buf, PAGE_SIZE, "%d\n", pyra->firmware_version);
-}
+	struct pyra_device *pyra;
+	struct usb_device *usb_dev;
+	struct pyra_info info;
 
-static ssize_t pyra_sysfs_show_startup_profile(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct pyra_device *pyra =
-			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
-	return snprintf(buf, PAGE_SIZE, "%d\n", pyra->settings.startup_profile);
+	dev = dev->parent->parent;
+	pyra = hid_get_drvdata(dev_get_drvdata(dev));
+	usb_dev = interface_to_usbdev(to_usb_interface(dev));
+
+	mutex_lock(&pyra->pyra_lock);
+	roccat_common2_receive(usb_dev, PYRA_COMMAND_INFO,
+			&info, PYRA_SIZE_INFO);
+	mutex_unlock(&pyra->pyra_lock);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
 }
 
 static struct device_attribute pyra_attributes[] = {
@@ -336,105 +308,88 @@
 	__ATTR(firmware_version, 0440,
 			pyra_sysfs_show_firmware_version, NULL),
 	__ATTR(startup_profile, 0440,
-			pyra_sysfs_show_startup_profile, NULL),
+			pyra_sysfs_show_actual_profile, NULL),
 	__ATTR_NULL
 };
 
 static struct bin_attribute pyra_bin_attributes[] = {
-	{
-		.attr = { .name = "profile_settings", .mode = 0220 },
-		.size = sizeof(struct pyra_profile_settings),
-		.write = pyra_sysfs_write_profile_settings
-	},
+	PYRA_BIN_ATTRIBUTE_W(control, CONTROL),
+	PYRA_BIN_ATTRIBUTE_RW(info, INFO),
+	PYRA_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS),
+	PYRA_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS),
+	PYRA_BIN_ATTRIBUTE_RW(settings, SETTINGS),
 	{
 		.attr = { .name = "profile1_settings", .mode = 0440 },
-		.size = sizeof(struct pyra_profile_settings),
+		.size = PYRA_SIZE_PROFILE_SETTINGS,
 		.read = pyra_sysfs_read_profilex_settings,
 		.private = &profile_numbers[0]
 	},
 	{
 		.attr = { .name = "profile2_settings", .mode = 0440 },
-		.size = sizeof(struct pyra_profile_settings),
+		.size = PYRA_SIZE_PROFILE_SETTINGS,
 		.read = pyra_sysfs_read_profilex_settings,
 		.private = &profile_numbers[1]
 	},
 	{
 		.attr = { .name = "profile3_settings", .mode = 0440 },
-		.size = sizeof(struct pyra_profile_settings),
+		.size = PYRA_SIZE_PROFILE_SETTINGS,
 		.read = pyra_sysfs_read_profilex_settings,
 		.private = &profile_numbers[2]
 	},
 	{
 		.attr = { .name = "profile4_settings", .mode = 0440 },
-		.size = sizeof(struct pyra_profile_settings),
+		.size = PYRA_SIZE_PROFILE_SETTINGS,
 		.read = pyra_sysfs_read_profilex_settings,
 		.private = &profile_numbers[3]
 	},
 	{
 		.attr = { .name = "profile5_settings", .mode = 0440 },
-		.size = sizeof(struct pyra_profile_settings),
+		.size = PYRA_SIZE_PROFILE_SETTINGS,
 		.read = pyra_sysfs_read_profilex_settings,
 		.private = &profile_numbers[4]
 	},
 	{
-		.attr = { .name = "profile_buttons", .mode = 0220 },
-		.size = sizeof(struct pyra_profile_buttons),
-		.write = pyra_sysfs_write_profile_buttons
-	},
-	{
 		.attr = { .name = "profile1_buttons", .mode = 0440 },
-		.size = sizeof(struct pyra_profile_buttons),
+		.size = PYRA_SIZE_PROFILE_BUTTONS,
 		.read = pyra_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[0]
 	},
 	{
 		.attr = { .name = "profile2_buttons", .mode = 0440 },
-		.size = sizeof(struct pyra_profile_buttons),
+		.size = PYRA_SIZE_PROFILE_BUTTONS,
 		.read = pyra_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[1]
 	},
 	{
 		.attr = { .name = "profile3_buttons", .mode = 0440 },
-		.size = sizeof(struct pyra_profile_buttons),
+		.size = PYRA_SIZE_PROFILE_BUTTONS,
 		.read = pyra_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[2]
 	},
 	{
 		.attr = { .name = "profile4_buttons", .mode = 0440 },
-		.size = sizeof(struct pyra_profile_buttons),
+		.size = PYRA_SIZE_PROFILE_BUTTONS,
 		.read = pyra_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[3]
 	},
 	{
 		.attr = { .name = "profile5_buttons", .mode = 0440 },
-		.size = sizeof(struct pyra_profile_buttons),
+		.size = PYRA_SIZE_PROFILE_BUTTONS,
 		.read = pyra_sysfs_read_profilex_buttons,
 		.private = &profile_numbers[4]
 	},
-	{
-		.attr = { .name = "settings", .mode = 0660 },
-		.size = sizeof(struct pyra_settings),
-		.read = pyra_sysfs_read_settings,
-		.write = pyra_sysfs_write_settings
-	},
 	__ATTR_NULL
 };
 
 static int pyra_init_pyra_device_struct(struct usb_device *usb_dev,
 		struct pyra_device *pyra)
 {
-	struct pyra_info info;
+	struct pyra_settings settings;
 	int retval, i;
 
 	mutex_init(&pyra->pyra_lock);
 
-	retval = pyra_get_info(usb_dev, &info);
-	if (retval)
-		return retval;
-
-	pyra->firmware_version = info.firmware_version;
-
-	retval = pyra_get_settings(usb_dev, &pyra->settings);
+	retval = pyra_get_settings(usb_dev, &settings);
 	if (retval)
 		return retval;
 
@@ -443,14 +398,9 @@
 				&pyra->profile_settings[i], i);
 		if (retval)
 			return retval;
-
-		retval = pyra_get_profile_buttons(usb_dev,
-				&pyra->profile_buttons[i], i);
-		if (retval)
-			return retval;
 	}
 
-	profile_activated(pyra, pyra->settings.startup_profile);
+	profile_activated(pyra, settings.startup_profile);
 
 	return 0;
 }
diff --git a/drivers/hid/hid-roccat-pyra.h b/drivers/hid/hid-roccat-pyra.h
index eada783..beedcf0 100644
--- a/drivers/hid/hid-roccat-pyra.h
+++ b/drivers/hid/hid-roccat-pyra.h
@@ -14,11 +14,13 @@
 
 #include <linux/types.h>
 
-struct pyra_b {
-	uint8_t command; /* PYRA_COMMAND_B */
-	uint8_t size; /* always 3 */
-	uint8_t unknown; /* 1 */
-} __attribute__ ((__packed__));
+enum {
+	PYRA_SIZE_CONTROL = 0x03,
+	PYRA_SIZE_INFO = 0x06,
+	PYRA_SIZE_PROFILE_SETTINGS = 0x0d,
+	PYRA_SIZE_PROFILE_BUTTONS = 0x13,
+	PYRA_SIZE_SETTINGS = 0x03,
+};
 
 enum pyra_control_requests {
 	PYRA_CONTROL_REQUEST_PROFILE_SETTINGS = 0x10,
@@ -46,14 +48,6 @@
 	uint16_t checksum; /* byte sum */
 } __attribute__ ((__packed__));
 
-struct pyra_profile_buttons {
-	uint8_t command; /* PYRA_COMMAND_PROFILE_BUTTONS */
-	uint8_t size; /* always 0x13 */
-	uint8_t number; /* Range 0-4 */
-	uint8_t buttons[14];
-	uint16_t checksum; /* byte sum */
-} __attribute__ ((__packed__));
-
 struct pyra_info {
 	uint8_t command; /* PYRA_COMMAND_INFO */
 	uint8_t size; /* always 6 */
@@ -64,6 +58,7 @@
 } __attribute__ ((__packed__));
 
 enum pyra_commands {
+	PYRA_COMMAND_CONTROL = 0x4,
 	PYRA_COMMAND_SETTINGS = 0x5,
 	PYRA_COMMAND_PROFILE_SETTINGS = 0x6,
 	PYRA_COMMAND_PROFILE_BUTTONS = 0x7,
@@ -148,13 +143,10 @@
 struct pyra_device {
 	int actual_profile;
 	int actual_cpi;
-	int firmware_version;
 	int roccat_claimed;
 	int chrdev_minor;
 	struct mutex pyra_lock;
-	struct pyra_settings settings;
 	struct pyra_profile_settings profile_settings[5];
-	struct pyra_profile_buttons profile_buttons[5];
 };
 
 #endif
diff --git a/drivers/hid/hid-roccat-savu.c b/drivers/hid/hid-roccat-savu.c
index 014afba..31747a2 100644
--- a/drivers/hid/hid-roccat-savu.c
+++ b/drivers/hid/hid-roccat-savu.c
@@ -120,7 +120,7 @@
 SAVU_SYSFS_RW(general, GENERAL)
 SAVU_SYSFS_RW(buttons, BUTTONS)
 SAVU_SYSFS_RW(macro, MACRO)
-SAVU_SYSFS_R(info, INFO)
+SAVU_SYSFS_RW(info, INFO)
 SAVU_SYSFS_RW(sensor, SENSOR)
 
 static struct bin_attribute savu_bin_attributes[] = {
@@ -129,7 +129,7 @@
 	SAVU_BIN_ATTRIBUTE_RW(general, GENERAL),
 	SAVU_BIN_ATTRIBUTE_RW(buttons, BUTTONS),
 	SAVU_BIN_ATTRIBUTE_RW(macro, MACRO),
-	SAVU_BIN_ATTRIBUTE_R(info, INFO),
+	SAVU_BIN_ATTRIBUTE_RW(info, INFO),
 	SAVU_BIN_ATTRIBUTE_RW(sensor, SENSOR),
 	__ATTR_NULL
 };
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index d9d73e9..0bc58bd 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -82,23 +82,6 @@
 	void *priv;
 };
 
-static int sensor_hub_check_for_sensor_page(struct hid_device *hdev)
-{
-	int i;
-	int ret = -EINVAL;
-
-	for (i = 0; i < hdev->maxcollection; i++) {
-		struct hid_collection *col = &hdev->collection[i];
-		if (col->type == HID_COLLECTION_PHYSICAL &&
-		   (col->usage & HID_USAGE_PAGE) == HID_UP_SENSOR) {
-			ret = 0;
-			break;
-		}
-	}
-
-	return ret;
-}
-
 static struct hid_report *sensor_hub_report(int id, struct hid_device *hdev,
 						int dir)
 {
@@ -437,9 +420,6 @@
 	ptr = raw_data;
 	ptr++; /*Skip report id*/
 
-	if (!report)
-		goto err_report;
-
 	spin_lock_irqsave(&pdata->lock, flags);
 
 	for (i = 0; i < report->maxfield; ++i) {
@@ -485,7 +465,6 @@
 				callback->pdev);
 	spin_unlock_irqrestore(&pdata->lock, flags);
 
-err_report:
 	return 1;
 }
 
@@ -524,10 +503,6 @@
 		hid_err(hdev, "parse failed\n");
 		goto err_free;
 	}
-	if (sensor_hub_check_for_sensor_page(hdev) < 0) {
-		hid_err(hdev, "sensor page not found\n");
-		goto err_free;
-	}
 	INIT_LIST_HEAD(&hdev->inputs);
 
 	ret = hid_hw_start(hdev, 0);
@@ -630,16 +605,7 @@
 }
 
 static const struct hid_device_id sensor_hub_devices[] = {
-	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086,
-			USB_DEVICE_ID_SENSOR_HUB_1020) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087,
-			USB_DEVICE_ID_SENSOR_HUB_1020) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086,
-			USB_DEVICE_ID_SENSOR_HUB_09FA) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087,
-			USB_DEVICE_ID_SENSOR_HUB_09FA) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
-			USB_DEVICE_ID_SENSOR_HUB_7014) },
+	{ HID_DEVICE(BUS_USB, HID_GROUP_SENSOR_HUB, HID_ANY_ID, HID_ANY_ID) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, sensor_hub_devices);
diff --git a/drivers/hid/i2c-hid/Kconfig b/drivers/hid/i2c-hid/Kconfig
new file mode 100644
index 0000000..b66617a
--- /dev/null
+++ b/drivers/hid/i2c-hid/Kconfig
@@ -0,0 +1,18 @@
+menu "I2C HID support"
+	depends on I2C
+
+config I2C_HID
+	tristate "HID over I2C transport layer"
+	default n
+	depends on I2C && INPUT
+	select HID
+	---help---
+	  Say Y here if you use a keyboard, a touchpad, a touchscreen, or any
+	  other HID based devices which is connected to your computer via I2C.
+
+	  If unsure, say N.
+
+	  This support is also available as a module.  If so, the module
+	  will be called i2c-hid.
+
+endmenu
diff --git a/drivers/hid/i2c-hid/Makefile b/drivers/hid/i2c-hid/Makefile
new file mode 100644
index 0000000..832d8f9
--- /dev/null
+++ b/drivers/hid/i2c-hid/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the I2C input drivers
+#
+
+obj-$(CONFIG_I2C_HID)				+= i2c-hid.o
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
new file mode 100644
index 0000000..9ef22244
--- /dev/null
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -0,0 +1,979 @@
+/*
+ * HID over I2C protocol implementation
+ *
+ * Copyright (c) 2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+ * Copyright (c) 2012 Ecole Nationale de l'Aviation Civile, France
+ * Copyright (c) 2012 Red Hat, Inc
+ *
+ * This code is partly based on "USB HID support for Linux":
+ *
+ *  Copyright (c) 1999 Andreas Gal
+ *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
+ *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
+ *  Copyright (c) 2007-2008 Oliver Neukum
+ *  Copyright (c) 2006-2010 Jiri Kosina
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pm.h>
+#include <linux/device.h>
+#include <linux/wait.h>
+#include <linux/err.h>
+#include <linux/string.h>
+#include <linux/list.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/hid.h>
+#include <linux/mutex.h>
+
+#include <linux/i2c/i2c-hid.h>
+
+/* flags */
+#define I2C_HID_STARTED		(1 << 0)
+#define I2C_HID_RESET_PENDING	(1 << 1)
+#define I2C_HID_READ_PENDING	(1 << 2)
+
+#define I2C_HID_PWR_ON		0x00
+#define I2C_HID_PWR_SLEEP	0x01
+
+/* debug option */
+static bool debug;
+module_param(debug, bool, 0444);
+MODULE_PARM_DESC(debug, "print a lot of debug information");
+
+#define i2c_hid_dbg(ihid, fmt, arg...)					  \
+do {									  \
+	if (debug)							  \
+		dev_printk(KERN_DEBUG, &(ihid)->client->dev, fmt, ##arg); \
+} while (0)
+
+struct i2c_hid_desc {
+	__le16 wHIDDescLength;
+	__le16 bcdVersion;
+	__le16 wReportDescLength;
+	__le16 wReportDescRegister;
+	__le16 wInputRegister;
+	__le16 wMaxInputLength;
+	__le16 wOutputRegister;
+	__le16 wMaxOutputLength;
+	__le16 wCommandRegister;
+	__le16 wDataRegister;
+	__le16 wVendorID;
+	__le16 wProductID;
+	__le16 wVersionID;
+	__le32 reserved;
+} __packed;
+
+struct i2c_hid_cmd {
+	unsigned int registerIndex;
+	__u8 opcode;
+	unsigned int length;
+	bool wait;
+};
+
+union command {
+	u8 data[0];
+	struct cmd {
+		__le16 reg;
+		__u8 reportTypeID;
+		__u8 opcode;
+	} __packed c;
+};
+
+#define I2C_HID_CMD(opcode_) \
+	.opcode = opcode_, .length = 4, \
+	.registerIndex = offsetof(struct i2c_hid_desc, wCommandRegister)
+
+/* fetch HID descriptor */
+static const struct i2c_hid_cmd hid_descr_cmd = { .length = 2 };
+/* fetch report descriptors */
+static const struct i2c_hid_cmd hid_report_descr_cmd = {
+		.registerIndex = offsetof(struct i2c_hid_desc,
+			wReportDescRegister),
+		.opcode = 0x00,
+		.length = 2 };
+/* commands */
+static const struct i2c_hid_cmd hid_reset_cmd =		{ I2C_HID_CMD(0x01),
+							  .wait = true };
+static const struct i2c_hid_cmd hid_get_report_cmd =	{ I2C_HID_CMD(0x02) };
+static const struct i2c_hid_cmd hid_set_report_cmd =	{ I2C_HID_CMD(0x03) };
+static const struct i2c_hid_cmd hid_set_power_cmd =	{ I2C_HID_CMD(0x08) };
+
+/*
+ * These definitions are not used here, but are defined by the spec.
+ * Keeping them here for documentation purposes.
+ *
+ * static const struct i2c_hid_cmd hid_get_idle_cmd = { I2C_HID_CMD(0x04) };
+ * static const struct i2c_hid_cmd hid_set_idle_cmd = { I2C_HID_CMD(0x05) };
+ * static const struct i2c_hid_cmd hid_get_protocol_cmd = { I2C_HID_CMD(0x06) };
+ * static const struct i2c_hid_cmd hid_set_protocol_cmd = { I2C_HID_CMD(0x07) };
+ */
+
+static DEFINE_MUTEX(i2c_hid_open_mut);
+
+/* The main device structure */
+struct i2c_hid {
+	struct i2c_client	*client;	/* i2c client */
+	struct hid_device	*hid;	/* pointer to corresponding HID dev */
+	union {
+		__u8 hdesc_buffer[sizeof(struct i2c_hid_desc)];
+		struct i2c_hid_desc hdesc;	/* the HID Descriptor */
+	};
+	__le16			wHIDDescRegister; /* location of the i2c
+						   * register of the HID
+						   * descriptor. */
+	unsigned int		bufsize;	/* i2c buffer size */
+	char			*inbuf;		/* Input buffer */
+	char			*cmdbuf;	/* Command buffer */
+	char			*argsbuf;	/* Command arguments buffer */
+
+	unsigned long		flags;		/* device flags */
+
+	wait_queue_head_t	wait;		/* For waiting the interrupt */
+};
+
+static int __i2c_hid_command(struct i2c_client *client,
+		const struct i2c_hid_cmd *command, u8 reportID,
+		u8 reportType, u8 *args, int args_len,
+		unsigned char *buf_recv, int data_len)
+{
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	union command *cmd = (union command *)ihid->cmdbuf;
+	int ret;
+	struct i2c_msg msg[2];
+	int msg_num = 1;
+
+	int length = command->length;
+	bool wait = command->wait;
+	unsigned int registerIndex = command->registerIndex;
+
+	/* special case for hid_descr_cmd */
+	if (command == &hid_descr_cmd) {
+		cmd->c.reg = ihid->wHIDDescRegister;
+	} else {
+		cmd->data[0] = ihid->hdesc_buffer[registerIndex];
+		cmd->data[1] = ihid->hdesc_buffer[registerIndex + 1];
+	}
+
+	if (length > 2) {
+		cmd->c.opcode = command->opcode;
+		cmd->c.reportTypeID = reportID | reportType << 4;
+	}
+
+	memcpy(cmd->data + length, args, args_len);
+	length += args_len;
+
+	i2c_hid_dbg(ihid, "%s: cmd=%*ph\n", __func__, length, cmd->data);
+
+	msg[0].addr = client->addr;
+	msg[0].flags = client->flags & I2C_M_TEN;
+	msg[0].len = length;
+	msg[0].buf = cmd->data;
+	if (data_len > 0) {
+		msg[1].addr = client->addr;
+		msg[1].flags = client->flags & I2C_M_TEN;
+		msg[1].flags |= I2C_M_RD;
+		msg[1].len = data_len;
+		msg[1].buf = buf_recv;
+		msg_num = 2;
+		set_bit(I2C_HID_READ_PENDING, &ihid->flags);
+	}
+
+	if (wait)
+		set_bit(I2C_HID_RESET_PENDING, &ihid->flags);
+
+	ret = i2c_transfer(client->adapter, msg, msg_num);
+
+	if (data_len > 0)
+		clear_bit(I2C_HID_READ_PENDING, &ihid->flags);
+
+	if (ret != msg_num)
+		return ret < 0 ? ret : -EIO;
+
+	ret = 0;
+
+	if (wait) {
+		i2c_hid_dbg(ihid, "%s: waiting...\n", __func__);
+		if (!wait_event_timeout(ihid->wait,
+				!test_bit(I2C_HID_RESET_PENDING, &ihid->flags),
+				msecs_to_jiffies(5000)))
+			ret = -ENODATA;
+		i2c_hid_dbg(ihid, "%s: finished.\n", __func__);
+	}
+
+	return ret;
+}
+
+static int i2c_hid_command(struct i2c_client *client,
+		const struct i2c_hid_cmd *command,
+		unsigned char *buf_recv, int data_len)
+{
+	return __i2c_hid_command(client, command, 0, 0, NULL, 0,
+				buf_recv, data_len);
+}
+
+static int i2c_hid_get_report(struct i2c_client *client, u8 reportType,
+		u8 reportID, unsigned char *buf_recv, int data_len)
+{
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	u8 args[3];
+	int ret;
+	int args_len = 0;
+	u16 readRegister = le16_to_cpu(ihid->hdesc.wDataRegister);
+
+	i2c_hid_dbg(ihid, "%s\n", __func__);
+
+	if (reportID >= 0x0F) {
+		args[args_len++] = reportID;
+		reportID = 0x0F;
+	}
+
+	args[args_len++] = readRegister & 0xFF;
+	args[args_len++] = readRegister >> 8;
+
+	ret = __i2c_hid_command(client, &hid_get_report_cmd, reportID,
+		reportType, args, args_len, buf_recv, data_len);
+	if (ret) {
+		dev_err(&client->dev,
+			"failed to retrieve report from device.\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int i2c_hid_set_report(struct i2c_client *client, u8 reportType,
+		u8 reportID, unsigned char *buf, size_t data_len)
+{
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	u8 *args = ihid->argsbuf;
+	int ret;
+	u16 dataRegister = le16_to_cpu(ihid->hdesc.wDataRegister);
+
+	/* hidraw already checked that data_len < HID_MAX_BUFFER_SIZE */
+	u16 size =	2			/* size */ +
+			(reportID ? 1 : 0)	/* reportID */ +
+			data_len		/* buf */;
+	int args_len =	(reportID >= 0x0F ? 1 : 0) /* optional third byte */ +
+			2			/* dataRegister */ +
+			size			/* args */;
+	int index = 0;
+
+	i2c_hid_dbg(ihid, "%s\n", __func__);
+
+	if (reportID >= 0x0F) {
+		args[index++] = reportID;
+		reportID = 0x0F;
+	}
+
+	args[index++] = dataRegister & 0xFF;
+	args[index++] = dataRegister >> 8;
+
+	args[index++] = size & 0xFF;
+	args[index++] = size >> 8;
+
+	if (reportID)
+		args[index++] = reportID;
+
+	memcpy(&args[index], buf, data_len);
+
+	ret = __i2c_hid_command(client, &hid_set_report_cmd, reportID,
+		reportType, args, args_len, NULL, 0);
+	if (ret) {
+		dev_err(&client->dev, "failed to set a report to device.\n");
+		return ret;
+	}
+
+	return data_len;
+}
+
+static int i2c_hid_set_power(struct i2c_client *client, int power_state)
+{
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	int ret;
+
+	i2c_hid_dbg(ihid, "%s\n", __func__);
+
+	ret = __i2c_hid_command(client, &hid_set_power_cmd, power_state,
+		0, NULL, 0, NULL, 0);
+	if (ret)
+		dev_err(&client->dev, "failed to change power setting.\n");
+
+	return ret;
+}
+
+static int i2c_hid_hwreset(struct i2c_client *client)
+{
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	int ret;
+
+	i2c_hid_dbg(ihid, "%s\n", __func__);
+
+	ret = i2c_hid_set_power(client, I2C_HID_PWR_ON);
+	if (ret)
+		return ret;
+
+	i2c_hid_dbg(ihid, "resetting...\n");
+
+	ret = i2c_hid_command(client, &hid_reset_cmd, NULL, 0);
+	if (ret) {
+		dev_err(&client->dev, "failed to reset device.\n");
+		i2c_hid_set_power(client, I2C_HID_PWR_SLEEP);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void i2c_hid_get_input(struct i2c_hid *ihid)
+{
+	int ret, ret_size;
+	int size = le16_to_cpu(ihid->hdesc.wMaxInputLength);
+
+	ret = i2c_master_recv(ihid->client, ihid->inbuf, size);
+	if (ret != size) {
+		if (ret < 0)
+			return;
+
+		dev_err(&ihid->client->dev, "%s: got %d data instead of %d\n",
+			__func__, ret, size);
+		return;
+	}
+
+	ret_size = ihid->inbuf[0] | ihid->inbuf[1] << 8;
+
+	if (!ret_size) {
+		/* host or device initiated RESET completed */
+		if (test_and_clear_bit(I2C_HID_RESET_PENDING, &ihid->flags))
+			wake_up(&ihid->wait);
+		return;
+	}
+
+	if (ret_size > size) {
+		dev_err(&ihid->client->dev, "%s: incomplete report (%d/%d)\n",
+			__func__, size, ret_size);
+		return;
+	}
+
+	i2c_hid_dbg(ihid, "input: %*ph\n", ret_size, ihid->inbuf);
+
+	if (test_bit(I2C_HID_STARTED, &ihid->flags))
+		hid_input_report(ihid->hid, HID_INPUT_REPORT, ihid->inbuf + 2,
+				ret_size - 2, 1);
+
+	return;
+}
+
+static irqreturn_t i2c_hid_irq(int irq, void *dev_id)
+{
+	struct i2c_hid *ihid = dev_id;
+
+	if (test_bit(I2C_HID_READ_PENDING, &ihid->flags))
+		return IRQ_HANDLED;
+
+	i2c_hid_get_input(ihid);
+
+	return IRQ_HANDLED;
+}
+
+static int i2c_hid_get_report_length(struct hid_report *report)
+{
+	return ((report->size - 1) >> 3) + 1 +
+		report->device->report_enum[report->type].numbered + 2;
+}
+
+static void i2c_hid_init_report(struct hid_report *report, u8 *buffer,
+	size_t bufsize)
+{
+	struct hid_device *hid = report->device;
+	struct i2c_client *client = hid->driver_data;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	unsigned int size, ret_size;
+
+	size = i2c_hid_get_report_length(report);
+	if (i2c_hid_get_report(client,
+			report->type == HID_FEATURE_REPORT ? 0x03 : 0x01,
+			report->id, buffer, size))
+		return;
+
+	i2c_hid_dbg(ihid, "report (len=%d): %*ph\n", size, size, ihid->inbuf);
+
+	ret_size = buffer[0] | (buffer[1] << 8);
+
+	if (ret_size != size) {
+		dev_err(&client->dev, "error in %s size:%d / ret_size:%d\n",
+			__func__, size, ret_size);
+		return;
+	}
+
+	/* hid->driver_lock is held as we are in probe function,
+	 * we just need to setup the input fields, so using
+	 * hid_report_raw_event is safe. */
+	hid_report_raw_event(hid, report->type, buffer + 2, size - 2, 1);
+}
+
+/*
+ * Initialize all reports
+ */
+static void i2c_hid_init_reports(struct hid_device *hid)
+{
+	struct hid_report *report;
+	struct i2c_client *client = hid->driver_data;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	u8 *inbuf = kzalloc(ihid->bufsize, GFP_KERNEL);
+
+	if (!inbuf) {
+		dev_err(&client->dev, "can not retrieve initial reports\n");
+		return;
+	}
+
+	list_for_each_entry(report,
+		&hid->report_enum[HID_INPUT_REPORT].report_list, list)
+		i2c_hid_init_report(report, inbuf, ihid->bufsize);
+
+	list_for_each_entry(report,
+		&hid->report_enum[HID_FEATURE_REPORT].report_list, list)
+		i2c_hid_init_report(report, inbuf, ihid->bufsize);
+
+	kfree(inbuf);
+}
+
+/*
+ * Traverse the supplied list of reports and find the longest
+ */
+static void i2c_hid_find_max_report(struct hid_device *hid, unsigned int type,
+		unsigned int *max)
+{
+	struct hid_report *report;
+	unsigned int size;
+
+	/* We should not rely on wMaxInputLength, as some devices may set it to
+	 * a wrong length. */
+	list_for_each_entry(report, &hid->report_enum[type].report_list, list) {
+		size = i2c_hid_get_report_length(report);
+		if (*max < size)
+			*max = size;
+	}
+}
+
+static void i2c_hid_free_buffers(struct i2c_hid *ihid)
+{
+	kfree(ihid->inbuf);
+	kfree(ihid->argsbuf);
+	kfree(ihid->cmdbuf);
+	ihid->inbuf = NULL;
+	ihid->cmdbuf = NULL;
+	ihid->argsbuf = NULL;
+	ihid->bufsize = 0;
+}
+
+static int i2c_hid_alloc_buffers(struct i2c_hid *ihid, size_t report_size)
+{
+	/* the worst case is computed from the set_report command with a
+	 * reportID > 15 and the maximum report length */
+	int args_len = sizeof(__u8) + /* optional ReportID byte */
+		       sizeof(__u16) + /* data register */
+		       sizeof(__u16) + /* size of the report */
+		       report_size; /* report */
+
+	ihid->inbuf = kzalloc(report_size, GFP_KERNEL);
+	ihid->argsbuf = kzalloc(args_len, GFP_KERNEL);
+	ihid->cmdbuf = kzalloc(sizeof(union command) + args_len, GFP_KERNEL);
+
+	if (!ihid->inbuf || !ihid->argsbuf || !ihid->cmdbuf) {
+		i2c_hid_free_buffers(ihid);
+		return -ENOMEM;
+	}
+
+	ihid->bufsize = report_size;
+
+	return 0;
+}
+
+static int i2c_hid_get_raw_report(struct hid_device *hid,
+		unsigned char report_number, __u8 *buf, size_t count,
+		unsigned char report_type)
+{
+	struct i2c_client *client = hid->driver_data;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	size_t ret_count, ask_count;
+	int ret;
+
+	if (report_type == HID_OUTPUT_REPORT)
+		return -EINVAL;
+
+	/* +2 bytes to include the size of the reply in the query buffer */
+	ask_count = min(count + 2, (size_t)ihid->bufsize);
+
+	ret = i2c_hid_get_report(client,
+			report_type == HID_FEATURE_REPORT ? 0x03 : 0x01,
+			report_number, ihid->inbuf, ask_count);
+
+	if (ret < 0)
+		return ret;
+
+	ret_count = ihid->inbuf[0] | (ihid->inbuf[1] << 8);
+
+	if (ret_count <= 2)
+		return 0;
+
+	ret_count = min(ret_count, ask_count);
+
+	/* The query buffer contains the size, dropping it in the reply */
+	count = min(count, ret_count - 2);
+	memcpy(buf, ihid->inbuf + 2, count);
+
+	return count;
+}
+
+static int i2c_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
+		size_t count, unsigned char report_type)
+{
+	struct i2c_client *client = hid->driver_data;
+	int report_id = buf[0];
+
+	if (report_type == HID_INPUT_REPORT)
+		return -EINVAL;
+
+	return i2c_hid_set_report(client,
+				report_type == HID_FEATURE_REPORT ? 0x03 : 0x02,
+				report_id, buf, count);
+}
+
+static int i2c_hid_parse(struct hid_device *hid)
+{
+	struct i2c_client *client = hid->driver_data;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	struct i2c_hid_desc *hdesc = &ihid->hdesc;
+	unsigned int rsize;
+	char *rdesc;
+	int ret;
+	int tries = 3;
+
+	i2c_hid_dbg(ihid, "entering %s\n", __func__);
+
+	rsize = le16_to_cpu(hdesc->wReportDescLength);
+	if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {
+		dbg_hid("weird size of report descriptor (%u)\n", rsize);
+		return -EINVAL;
+	}
+
+	do {
+		ret = i2c_hid_hwreset(client);
+		if (ret)
+			msleep(1000);
+	} while (tries-- > 0 && ret);
+
+	if (ret)
+		return ret;
+
+	rdesc = kzalloc(rsize, GFP_KERNEL);
+
+	if (!rdesc) {
+		dbg_hid("couldn't allocate rdesc memory\n");
+		return -ENOMEM;
+	}
+
+	i2c_hid_dbg(ihid, "asking HID report descriptor\n");
+
+	ret = i2c_hid_command(client, &hid_report_descr_cmd, rdesc, rsize);
+	if (ret) {
+		hid_err(hid, "reading report descriptor failed\n");
+		kfree(rdesc);
+		return -EIO;
+	}
+
+	i2c_hid_dbg(ihid, "Report Descriptor: %*ph\n", rsize, rdesc);
+
+	ret = hid_parse_report(hid, rdesc, rsize);
+	kfree(rdesc);
+	if (ret) {
+		dbg_hid("parsing report descriptor failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int i2c_hid_start(struct hid_device *hid)
+{
+	struct i2c_client *client = hid->driver_data;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	int ret;
+	unsigned int bufsize = HID_MIN_BUFFER_SIZE;
+
+	i2c_hid_find_max_report(hid, HID_INPUT_REPORT, &bufsize);
+	i2c_hid_find_max_report(hid, HID_OUTPUT_REPORT, &bufsize);
+	i2c_hid_find_max_report(hid, HID_FEATURE_REPORT, &bufsize);
+
+	if (bufsize > ihid->bufsize) {
+		i2c_hid_free_buffers(ihid);
+
+		ret = i2c_hid_alloc_buffers(ihid, bufsize);
+
+		if (ret)
+			return ret;
+	}
+
+	if (!(hid->quirks & HID_QUIRK_NO_INIT_REPORTS))
+		i2c_hid_init_reports(hid);
+
+	return 0;
+}
+
+static void i2c_hid_stop(struct hid_device *hid)
+{
+	struct i2c_client *client = hid->driver_data;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+
+	hid->claimed = 0;
+
+	i2c_hid_free_buffers(ihid);
+}
+
+static int i2c_hid_open(struct hid_device *hid)
+{
+	struct i2c_client *client = hid->driver_data;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	int ret = 0;
+
+	mutex_lock(&i2c_hid_open_mut);
+	if (!hid->open++) {
+		ret = i2c_hid_set_power(client, I2C_HID_PWR_ON);
+		if (ret) {
+			hid->open--;
+			goto done;
+		}
+		set_bit(I2C_HID_STARTED, &ihid->flags);
+	}
+done:
+	mutex_unlock(&i2c_hid_open_mut);
+	return ret;
+}
+
+static void i2c_hid_close(struct hid_device *hid)
+{
+	struct i2c_client *client = hid->driver_data;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+
+	/* protecting hid->open to make sure we don't restart
+	 * data acquistion due to a resumption we no longer
+	 * care about
+	 */
+	mutex_lock(&i2c_hid_open_mut);
+	if (!--hid->open) {
+		clear_bit(I2C_HID_STARTED, &ihid->flags);
+
+		/* Save some power */
+		i2c_hid_set_power(client, I2C_HID_PWR_SLEEP);
+	}
+	mutex_unlock(&i2c_hid_open_mut);
+}
+
+static int i2c_hid_power(struct hid_device *hid, int lvl)
+{
+	struct i2c_client *client = hid->driver_data;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	int ret = 0;
+
+	i2c_hid_dbg(ihid, "%s lvl:%d\n", __func__, lvl);
+
+	switch (lvl) {
+	case PM_HINT_FULLON:
+		ret = i2c_hid_set_power(client, I2C_HID_PWR_ON);
+		break;
+	case PM_HINT_NORMAL:
+		ret = i2c_hid_set_power(client, I2C_HID_PWR_SLEEP);
+		break;
+	}
+	return ret;
+}
+
+static int i2c_hid_hidinput_input_event(struct input_dev *dev,
+		unsigned int type, unsigned int code, int value)
+{
+	struct hid_device *hid = input_get_drvdata(dev);
+	struct hid_field *field;
+	int offset;
+
+	if (type == EV_FF)
+		return input_ff_event(dev, type, code, value);
+
+	if (type != EV_LED)
+		return -1;
+
+	offset = hidinput_find_field(hid, type, code, &field);
+
+	if (offset == -1) {
+		hid_warn(dev, "event field not found\n");
+		return -1;
+	}
+
+	return hid_set_field(field, offset, value);
+}
+
+static struct hid_ll_driver i2c_hid_ll_driver = {
+	.parse = i2c_hid_parse,
+	.start = i2c_hid_start,
+	.stop = i2c_hid_stop,
+	.open = i2c_hid_open,
+	.close = i2c_hid_close,
+	.power = i2c_hid_power,
+	.hidinput_input_event = i2c_hid_hidinput_input_event,
+};
+
+static int __devinit i2c_hid_init_irq(struct i2c_client *client)
+{
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	int ret;
+
+	dev_dbg(&client->dev, "Requesting IRQ: %d\n", client->irq);
+
+	ret = request_threaded_irq(client->irq, NULL, i2c_hid_irq,
+			IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+			client->name, ihid);
+	if (ret < 0) {
+		dev_warn(&client->dev,
+			"Could not register for %s interrupt, irq = %d,"
+			" ret = %d\n",
+			client->name, client->irq, ret);
+
+		return ret;
+	}
+
+	return 0;
+}
+
+static int __devinit i2c_hid_fetch_hid_descriptor(struct i2c_hid *ihid)
+{
+	struct i2c_client *client = ihid->client;
+	struct i2c_hid_desc *hdesc = &ihid->hdesc;
+	unsigned int dsize;
+	int ret;
+
+	/* Fetch the length of HID description, retrieve the 4 first bytes:
+	 * bytes 0-1 -> length
+	 * bytes 2-3 -> bcdVersion (has to be 1.00) */
+	ret = i2c_hid_command(client, &hid_descr_cmd, ihid->hdesc_buffer, 4);
+
+	i2c_hid_dbg(ihid, "%s, ihid->hdesc_buffer: %*ph\n",
+			__func__, 4, ihid->hdesc_buffer);
+
+	if (ret) {
+		dev_err(&client->dev,
+			"unable to fetch the size of HID descriptor (ret=%d)\n",
+			ret);
+		return -ENODEV;
+	}
+
+	dsize = le16_to_cpu(hdesc->wHIDDescLength);
+	/*
+	 * the size of the HID descriptor should at least contain
+	 * its size and the bcdVersion (4 bytes), and should not be greater
+	 * than sizeof(struct i2c_hid_desc) as we directly fill this struct
+	 * through i2c_hid_command.
+	 */
+	if (dsize < 4 || dsize > sizeof(struct i2c_hid_desc)) {
+		dev_err(&client->dev, "weird size of HID descriptor (%u)\n",
+			dsize);
+		return -ENODEV;
+	}
+
+	/* check bcdVersion == 1.0 */
+	if (le16_to_cpu(hdesc->bcdVersion) != 0x0100) {
+		dev_err(&client->dev,
+			"unexpected HID descriptor bcdVersion (0x%04hx)\n",
+			le16_to_cpu(hdesc->bcdVersion));
+		return -ENODEV;
+	}
+
+	i2c_hid_dbg(ihid, "Fetching the HID descriptor\n");
+
+	ret = i2c_hid_command(client, &hid_descr_cmd, ihid->hdesc_buffer,
+				dsize);
+	if (ret) {
+		dev_err(&client->dev, "hid_descr_cmd Fail\n");
+		return -ENODEV;
+	}
+
+	i2c_hid_dbg(ihid, "HID Descriptor: %*ph\n", dsize, ihid->hdesc_buffer);
+
+	return 0;
+}
+
+static int __devinit i2c_hid_probe(struct i2c_client *client,
+		const struct i2c_device_id *dev_id)
+{
+	int ret;
+	struct i2c_hid *ihid;
+	struct hid_device *hid;
+	__u16 hidRegister;
+	struct i2c_hid_platform_data *platform_data = client->dev.platform_data;
+
+	dbg_hid("HID probe called for i2c 0x%02x\n", client->addr);
+
+	if (!platform_data) {
+		dev_err(&client->dev, "HID register address not provided\n");
+		return -EINVAL;
+	}
+
+	if (!client->irq) {
+		dev_err(&client->dev,
+			"HID over i2c has not been provided an Int IRQ\n");
+		return -EINVAL;
+	}
+
+	ihid = kzalloc(sizeof(struct i2c_hid), GFP_KERNEL);
+	if (!ihid)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, ihid);
+
+	ihid->client = client;
+
+	hidRegister = platform_data->hid_descriptor_address;
+	ihid->wHIDDescRegister = cpu_to_le16(hidRegister);
+
+	init_waitqueue_head(&ihid->wait);
+
+	/* we need to allocate the command buffer without knowing the maximum
+	 * size of the reports. Let's use HID_MIN_BUFFER_SIZE, then we do the
+	 * real computation later. */
+	ret = i2c_hid_alloc_buffers(ihid, HID_MIN_BUFFER_SIZE);
+	if (ret < 0)
+		goto err;
+
+	ret = i2c_hid_fetch_hid_descriptor(ihid);
+	if (ret < 0)
+		goto err;
+
+	ret = i2c_hid_init_irq(client);
+	if (ret < 0)
+		goto err;
+
+	hid = hid_allocate_device();
+	if (IS_ERR(hid)) {
+		ret = PTR_ERR(hid);
+		goto err_irq;
+	}
+
+	ihid->hid = hid;
+
+	hid->driver_data = client;
+	hid->ll_driver = &i2c_hid_ll_driver;
+	hid->hid_get_raw_report = i2c_hid_get_raw_report;
+	hid->hid_output_raw_report = i2c_hid_output_raw_report;
+	hid->dev.parent = &client->dev;
+	hid->bus = BUS_I2C;
+	hid->version = le16_to_cpu(ihid->hdesc.bcdVersion);
+	hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID);
+	hid->product = le16_to_cpu(ihid->hdesc.wProductID);
+
+	snprintf(hid->name, sizeof(hid->name), "%s %04hX:%04hX",
+		 client->name, hid->vendor, hid->product);
+
+	ret = hid_add_device(hid);
+	if (ret) {
+		if (ret != -ENODEV)
+			hid_err(client, "can't add hid device: %d\n", ret);
+		goto err_mem_free;
+	}
+
+	return 0;
+
+err_mem_free:
+	hid_destroy_device(hid);
+
+err_irq:
+	free_irq(client->irq, ihid);
+
+err:
+	i2c_hid_free_buffers(ihid);
+	kfree(ihid);
+	return ret;
+}
+
+static int __devexit i2c_hid_remove(struct i2c_client *client)
+{
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
+	struct hid_device *hid;
+
+	hid = ihid->hid;
+	hid_destroy_device(hid);
+
+	free_irq(client->irq, ihid);
+
+	if (ihid->bufsize)
+		i2c_hid_free_buffers(ihid);
+
+	kfree(ihid);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int i2c_hid_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+
+	if (device_may_wakeup(&client->dev))
+		enable_irq_wake(client->irq);
+
+	/* Save some power */
+	i2c_hid_set_power(client, I2C_HID_PWR_SLEEP);
+
+	return 0;
+}
+
+static int i2c_hid_resume(struct device *dev)
+{
+	int ret;
+	struct i2c_client *client = to_i2c_client(dev);
+
+	ret = i2c_hid_hwreset(client);
+	if (ret)
+		return ret;
+
+	if (device_may_wakeup(&client->dev))
+		disable_irq_wake(client->irq);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(i2c_hid_pm, i2c_hid_suspend, i2c_hid_resume);
+
+static const struct i2c_device_id i2c_hid_id_table[] = {
+	{ "hid", 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, i2c_hid_id_table);
+
+
+static struct i2c_driver i2c_hid_driver = {
+	.driver = {
+		.name	= "i2c_hid",
+		.owner	= THIS_MODULE,
+		.pm	= &i2c_hid_pm,
+	},
+
+	.probe		= i2c_hid_probe,
+	.remove		= __devexit_p(i2c_hid_remove),
+
+	.id_table	= i2c_hid_id_table,
+};
+
+module_i2c_driver(i2c_hid_driver);
+
+MODULE_DESCRIPTION("HID over I2C core driver");
+MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 11c7932..ac9e352 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -72,6 +72,7 @@
 	{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2, HID_QUIRK_NO_INIT_REPORTS },
@@ -79,9 +80,11 @@
 	{ USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U, HID_QUIRK_MULTI_INPUT },
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 14599e2..87bd649 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -361,10 +361,6 @@
 			prepare_to_wait(&list->hiddev->wait, &wait, TASK_INTERRUPTIBLE);
 
 			while (list->head == list->tail) {
-				if (file->f_flags & O_NONBLOCK) {
-					retval = -EAGAIN;
-					break;
-				}
 				if (signal_pending(current)) {
 					retval = -ERESTARTSYS;
 					break;
@@ -373,6 +369,10 @@
 					retval = -EIO;
 					break;
 				}
+				if (file->f_flags & O_NONBLOCK) {
+					retval = -EAGAIN;
+					break;
+				}
 
 				/* let O_NONBLOCK tasks run */
 				mutex_unlock(&list->thread_lock);
@@ -625,7 +625,7 @@
 		break;
 
 	case HIDIOCAPPLICATION:
-		if (arg < 0 || arg >= hid->maxapplication)
+		if (arg >= hid->maxapplication)
 			break;
 
 		for (i = 0; i < hid->maxcollection; i++)
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index c0ec7d4..475b9d4 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -247,7 +247,7 @@
 
 	if (mt->flags & INPUT_MT_DROP_UNUSED) {
 		for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
-			if (s->frame == mt->frame)
+			if (input_mt_is_used(mt, s))
 				continue;
 			input_mt_slot(dev, s - mt->slots);
 			input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
diff --git a/include/linux/hid-sensor-ids.h b/include/linux/hid-sensor-ids.h
index ca8d7e9..55f2773 100644
--- a/include/linux/hid-sensor-ids.h
+++ b/include/linux/hid-sensor-ids.h
@@ -19,7 +19,6 @@
 #ifndef _HID_SENSORS_IDS_H
 #define _HID_SENSORS_IDS_H
 
-#define HID_UP_SENSOR						0x00200000
 #define HID_MAX_PHY_DEVICES					0xFF
 
 /* Accel 3D (200073) */
diff --git a/include/linux/hid.h b/include/linux/hid.h
index c076041..7330a0f 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -167,6 +167,7 @@
 #define HID_UP_MSVENDOR		0xff000000
 #define HID_UP_CUSTOM		0x00ff0000
 #define HID_UP_LOGIVENDOR	0xffbc0000
+#define HID_UP_SENSOR		0x00200000
 
 #define HID_USAGE		0x0000ffff
 
@@ -292,6 +293,7 @@
  */
 #define HID_GROUP_GENERIC			0x0001
 #define HID_GROUP_MULTITOUCH			0x0002
+#define HID_GROUP_SENSOR_HUB			0x0003
 
 /*
  * This is the global environment of the parser. This information is
@@ -342,6 +344,7 @@
 struct hid_usage {
 	unsigned  hid;			/* hid usage code */
 	unsigned  collection_index;	/* index into collection array */
+	unsigned  usage_index;		/* index into usage array */
 	/* hidinput data */
 	__u16     code;			/* input driver code */
 	__u8      type;			/* input driver type */
@@ -684,6 +687,7 @@
 
 extern int hid_debug;
 
+extern bool hid_ignore(struct hid_device *);
 extern int hid_add_device(struct hid_device *);
 extern void hid_destroy_device(struct hid_device *);
 
@@ -706,6 +710,7 @@
 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
 struct hid_field *hidinput_get_led_field(struct hid_device *hid);
 unsigned int hidinput_count_leds(struct hid_device *hid);
+__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code);
 void hid_output_report(struct hid_report *report, __u8 *data);
 struct hid_device *hid_allocate_device(void);
 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id);
@@ -716,6 +721,7 @@
 void hid_disconnect(struct hid_device *hid);
 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
 					 const struct hid_device_id *id);
+s32 hid_snto32(__u32 value, unsigned n);
 
 /**
  * hid_map_usage - map usage input bits
diff --git a/include/linux/i2c/i2c-hid.h b/include/linux/i2c/i2c-hid.h
new file mode 100644
index 0000000..60e411d
--- /dev/null
+++ b/include/linux/i2c/i2c-hid.h
@@ -0,0 +1,35 @@
+/*
+ * HID over I2C protocol implementation
+ *
+ * Copyright (c) 2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+ * Copyright (c) 2012 Ecole Nationale de l'Aviation Civile, France
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#ifndef __LINUX_I2C_HID_H
+#define __LINUX_I2C_HID_H
+
+#include <linux/types.h>
+
+/**
+ * struct i2chid_platform_data - used by hid over i2c implementation.
+ * @hid_descriptor_address: i2c register where the HID descriptor is stored.
+ *
+ * Note that it is the responsibility of the platform driver (or the acpi 5.0
+ * driver) to setup the irq related to the gpio in the struct i2c_board_info.
+ * The platform driver should also setup the gpio according to the device:
+ *
+ * A typical example is the following:
+ *	irq = gpio_to_irq(intr_gpio);
+ *	hkdk4412_i2c_devs5[0].irq = irq; // store the irq in i2c_board_info
+ *	gpio_request(intr_gpio, "elan-irq");
+ *	s3c_gpio_setpull(intr_gpio, S3C_GPIO_PULL_UP);
+ */
+struct i2c_hid_platform_data {
+	u16 hid_descriptor_address;
+};
+
+#endif /* __LINUX_I2C_HID_H */
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
index cc5cca7..2e86bd0 100644
--- a/include/linux/input/mt.h
+++ b/include/linux/input/mt.h
@@ -69,6 +69,12 @@
 	return input_mt_get_value(slot, ABS_MT_TRACKING_ID) >= 0;
 }
 
+static inline bool input_mt_is_used(const struct input_mt *mt,
+				    const struct input_mt_slot *slot)
+{
+	return slot->frame == mt->frame;
+}
+
 int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots,
 			unsigned int flags);
 void input_mt_destroy_slots(struct input_dev *dev);
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index 5588285..935119c 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -851,6 +851,7 @@
 #define MSC_GESTURE		0x02
 #define MSC_RAW			0x03
 #define MSC_SCAN		0x04
+#define MSC_TIMESTAMP		0x05
 #define MSC_MAX			0x07
 #define MSC_CNT			(MSC_MAX+1)
 
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index ccd985d..1f4a32b 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -941,6 +941,13 @@
 	hid->hid_get_raw_report = hidp_get_raw_report;
 	hid->hid_output_raw_report = hidp_output_raw_report;
 
+	/* True if device is blacklisted in drivers/hid/hid-core.c */
+	if (hid_ignore(hid)) {
+		hid_destroy_device(session->hid);
+		session->hid = NULL;
+		return -ENODEV;
+	}
+
 	return 0;
 
 fault:
@@ -1013,7 +1020,7 @@
 
 	if (req->rd_size > 0) {
 		err = hidp_setup_hid(session, req);
-		if (err)
+		if (err && err != -ENODEV)
 			goto purge;
 	}