UAC1_EXTENSION_UNIT 994 sound/usb/mixer.c case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT): UAC1_EXTENSION_UNIT 2787 sound/usb/mixer.c case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT): UAC1_EXTENSION_UNIT 111 sound/usb/validate.c if (v->type == UAC1_EXTENSION_UNIT) UAC1_EXTENSION_UNIT 247 sound/usb/validate.c FUNC(UAC_VERSION_1, UAC1_EXTENSION_UNIT, validate_processing_unit),