PCM1789_DAC_VOL_RIGHT
PCM1789_DAC_VOL_RIGHT, 0, 0xf, 0xff, 0,
.max_register = PCM1789_DAC_VOL_RIGHT,
{ PCM1789_DAC_VOL_RIGHT, 0xff },
return reg >= PCM1789_MUTE_CONTROL && reg <= PCM1789_DAC_VOL_RIGHT;