Hi Pavel > motmdm.c handles audio configuration on "gsmtty2"; it needs to know > whether we are in call or not; that part is in motmdm-state.c and > listens on "gsmtty1". Subject is very confusable. I think this patch is not related to audio-graph-card ? I think it can be - ASoC: audio-graph-card: Add audio mixer for Motorola mdm6600 : ASoC: motmdm: Add audio mixer for Motorola mdm6600 Thank you for your help !! Best regards --- Kuninori Morimoto