ALSA: usb-audio: export snd_usb_feature_unit_ctl
In order to allow quirks functions to hook up to the standard feature
unit op tables, this patch exports a pointer to the struct that is used
internally.
That way, all the code handling the control can be kept private, and
external code can reference the symbol to re-use it.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 84a5ce7..220c616 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -48,6 +48,7 @@
#include <linux/usb/audio.h>
#include <linux/usb/audio-v2.h>
+#include <sound/control.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/pcm.h>
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index ba19bfd..c22fa76 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -86,16 +86,6 @@
const struct usbmix_selector_map *selector_map;
};
-enum {
- USB_MIXER_BOOLEAN,
- USB_MIXER_INV_BOOLEAN,
- USB_MIXER_S8,
- USB_MIXER_U8,
- USB_MIXER_S16,
- USB_MIXER_U16,
-};
-
-
/*E-mu 0202/0404/0204 eXtension Unit(XU) control*/
enum {
USB_XU_CLOCK_RATE = 0xe301,
@@ -985,6 +975,9 @@
.put = NULL,
};
+/* This symbol is exported in order to allow the mixer quirks to
+ * hook up to the standard feature unit control mechanism */
+struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl;
/*
* build a feature control
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h
index 459551a..ae1a14d 100644
--- a/sound/usb/mixer.h
+++ b/sound/usb/mixer.h
@@ -24,7 +24,16 @@
u8 xonar_u1_status;
};
-#define MAX_CHANNELS 10 /* max logical channels */
+#define MAX_CHANNELS 16 /* max logical channels */
+
+enum {
+ USB_MIXER_BOOLEAN,
+ USB_MIXER_INV_BOOLEAN,
+ USB_MIXER_S8,
+ USB_MIXER_U8,
+ USB_MIXER_S16,
+ USB_MIXER_U16,
+};
struct usb_mixer_elem_info {
struct usb_mixer_interface *mixer;
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index bd13d72..2546dc8 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -19,6 +19,7 @@
#include <linux/usb.h>
#include <linux/usb/audio.h>
+#include <sound/control.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/pcm.h>