[ALSA] usb-audio - move mixer data into separate struct
USB generic driver
Move all data related to audio control interfaces into a separate struct
local to usbmixer.c.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 14f7cf7..41d842d 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -136,7 +136,7 @@
struct list_head midi_list; /* list of midi interfaces */
int next_midi_device;
- unsigned int ignore_ctl_error; /* for mixer */
+ struct list_head mixer_list; /* list of mixer interfaces */
};
/*
@@ -219,6 +219,7 @@
int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u8 requesttype, __u16 value, __u16 index, void *data, __u16 size, int timeout);
int snd_usb_create_mixer(snd_usb_audio_t *chip, int ctrlif);
+void snd_usb_mixer_disconnect(struct list_head *p);
int snd_usb_create_midi_interface(snd_usb_audio_t *chip, struct usb_interface *iface, const snd_usb_audio_quirk_t *quirk);
void snd_usbmidi_input_stop(struct list_head* p);