WM8971_RDAC 140 sound/soc/codecs/wm8971.c SOC_DOUBLE_R("PCM Volume", WM8971_LDAC, WM8971_RDAC, 0, 255, 0), WM8971_RDAC 637 sound/soc/codecs/wm8971.c snd_soc_component_update_bits(component, WM8971_RDAC, 0x0100, 0x0100);