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".
To configure Alsamixer for voice calls do for example:
Speaker Right -> Voice Call Noise Cancellation -> Unmute Call Output -> Speakerphone Call -> 100 Mic2 -> 40 Left -> Mic 2 Voice -> 55 Mic2 -> 40 Left -> Mic 2
Tony wrote original version using custom interface to n_gsm, Pavel switched it to plain serdev and split it to two drivers to be easier to debug and understand. Credit is Tony's, bugs are probably Pavel's.
Signed-off-by: Pavel Machek pavel@ucw.cz Co-authored-by: Tony Lindgren tony@atomide.com
This is not a big deal, but the this patch is not directly related to audio-graph-card. Including it on Subject is confusable.
Thank you for your help !!
Best regards --- Kuninori Morimoto