MUTE_ALL
sc->mute[AD1848_MONO_CHANNEL] = MUTE_ALL;
mute ? MUTE_ALL : 0);
mute ? MUTE_ALL : 0);
ad1848_mute_channel(sc, AD1848_AUX2_CHANNEL, mute ? MUTE_ALL : 0);
ad1848_mute_channel(sc, AD1848_AUX1_CHANNEL, mute ? MUTE_ALL : 0);
ac->mute[dev] = (cp->un.ord ? MUTE_ALL : 0);
#define MUTE_MONO MUTE_ALL
ac->mute[AD1848_AUX1_CHANNEL] = MUTE_ALL;
ad1848_mute_channel(ac, MUTE_ALL); /* turn off DAC output */