SBM_NONE
case SBM_NONE:
if (sc->sc_mixer_model == SBM_NONE)
if (sc->sc_mixer_model == SBM_NONE)
if (sc->sc_mixer_model == SBM_NONE)
if (sc->sc_mixer_model != SBM_NONE) {
case SBM_NONE:
sc->sc_mixer_model = SBM_NONE;
sc->sc_mixer_model = SBM_NONE;