ad1848_set_mic_gain  919 dev/isa/ad1848.c     error = ad1848_set_mic_gain(ac, &vol);
ad1848_set_mic_gain  217 dev/isa/ad1848var.h int	ad1848_set_mic_gain(struct ad1848_softc *, struct ad1848_volume *);
ad1848_set_mic_gain 2223 dev/isa/gus.c  		ad1848_set_mic_gain(&sc->sc_codec, &vol);