AMIXER_PCM_F
for (i = AMIXER_PCM_F, k = SUM_IN_F; i <= AMIXER_PCM_S; i++, k++) {
case MIX_PCMI_FRONT: return AMIXER_PCM_F;
case MIXER_PCM_P: return AMIXER_PCM_F;
case AMIXER_PCM_F: return AMIXER_PCM_F_C;
if (AMIXER_MASTER_F == type || AMIXER_PCM_F == type) {