ALSA: usbaudio: fix suspend/resume
- ESHUTDOWN must be correctly handled
- the optional interrupt endpoint's URB must be stopped and restarted
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h
index 26c636c..b4a2c81 100644
--- a/sound/usb/mixer.h
+++ b/sound/usb/mixer.h
@@ -52,5 +52,7 @@
int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
int request, int validx, int value_set);
+void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer);
+int snd_usb_mixer_activate(struct usb_mixer_interface *mixer);
#endif /* __USBMIXER_H */