EXTENSION_UNIT    254 sound/usb/usbmixer.c 		if (p[0] >= 4 && p[2] >= INPUT_TERMINAL && p[2] <= EXTENSION_UNIT && p[3] == unit)
EXTENSION_UNIT    548 sound/usb/usbmixer.c 		case EXTENSION_UNIT:
EXTENSION_UNIT    613 sound/usb/usbmixer.c 		case EXTENSION_UNIT:
EXTENSION_UNIT   1609 sound/usb/usbmixer.c 	case EXTENSION_UNIT: