SB_DSP4_MIC_AGC
SB_SINGLE("SB Mic Auto Gain", SB_DSP4_MIC_AGC, 0, 1),
snd_sbmixer_write(chip, SB_DSP4_MIC_AGC,
(snd_sbmixer_read(chip, SB_DSP4_MIC_AGC) & 0x01) |
SB_SINGLE("Mic Auto Gain", SB_DSP4_MIC_AGC, 0, 1),
SB_DSP4_MIC_AGC