snd_usb_mixer_fu_apply_quirk 1695 sound/usb/mixer.c 	snd_usb_mixer_fu_apply_quirk(mixer, cval, unitid, kctl);
snd_usb_mixer_fu_apply_quirk   13 sound/usb/mixer_quirks.h void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,