UAC_PROCESS_UP_DOWNMIX 2284 sound/usb/mixer.c 	{ UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info },
UAC_PROCESS_UP_DOWNMIX 2406 sound/usb/mixer.c 		case UAC_PROCESS_UP_DOWNMIX: {
UAC_PROCESS_UP_DOWNMIX  114 sound/usb/validate.c 		case UAC_PROCESS_UP_DOWNMIX: