HID: Wacom Graphire Bluetooth driver

Based on the work by Andrew Zabolotny, an HID driver for the Bluetooth
Wacom tablet. This is required as it uses a slightly different
protocols from what's currently support by the drivers/input/wacom*
driver, and those only support USB.

A user-space patch is required to activate mode 2 of the Wacom tablet,
as hidp does not support hid_output_raw_report.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 4d5ee2b..b519692 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -414,6 +414,7 @@
 #define USB_DEVICE_ID_VERNIER_LCSPEC	0x0006
 
 #define USB_VENDOR_ID_WACOM		0x056a
+#define USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH	0x81
 
 #define USB_VENDOR_ID_WISEGROUP		0x0925
 #define USB_DEVICE_ID_1_PHIDGETSERVO_20	0x8101