ALSA: usb-audio: simplify control interface access
As the control interface is now carried in struct snd_usb_audio, we can
simplify the API a little and also drop the private ctrlif field from
struct usb_mixer_interface.
Also remove a left-over function prototype in pcm.h.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index b45e54c..9a9da09 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -32,6 +32,7 @@
#include "helper.h"
#include "endpoint.h"
#include "pcm.h"
+#include "clock.h"
/*
* handle the quirks for the contained interfaces