snd_es1938_mixer_bits
return snd_es1938_mixer_bits(chip, 0x1c, 0x07, val) != val;
return snd_es1938_mixer_bits(chip, reg, mask, val);
snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0);
snd_es1938_mixer_bits(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x80, 0);
snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0x40);