INPUT_MIC_GAIN_ENABLE  107 dev/isa/ad1848.c     GAIN_12|INPUT_MIC_GAIN_ENABLE,
INPUT_MIC_GAIN_ENABLE  109 dev/isa/ad1848.c     GAIN_12|INPUT_MIC_GAIN_ENABLE,
INPUT_MIC_GAIN_ENABLE  750 dev/isa/ad1848.c 	    ad_write(sc, SP_LEFT_INPUT_CONTROL, reg | INPUT_MIC_GAIN_ENABLE);
INPUT_MIC_GAIN_ENABLE  754 dev/isa/ad1848.c 	    ad_write(sc, SP_LEFT_INPUT_CONTROL, reg & ~INPUT_MIC_GAIN_ENABLE);