AK4531_MONO1 316 sound/pci/ak4531_codec.c AK4531_SINGLE("Mono Switch", 0, AK4531_MONO1, 7, 1, 1), AK4531_MONO1 317 sound/pci/ak4531_codec.c AK4531_SINGLE_TLV("Mono Volume", 0, AK4531_MONO1, 0, 0x1f, 1, db_scale_input),