Raymond, On Apr 02 2015 17:19, Raymond Yau wrote: > Only tested with snd-dummy with model=ice1712 > > I expect pulseaudio only use those multi channel profiles only when driver > 's channel_min > 2 and channel_min equal to channel_max > > So pulseaudio just playback and capture the hardware supported channels > instead of the first 4 channels > > Do you mean that you want to play/capture stereo only to/from specified > jack with channel map ? > > https://bugs.freedesktop.org/show_bug.cgi?id=89541 I didn't mean such request. Merely a lack of my understanding about PulseAudio. For your information, in most devices, each of the captured PCM channels is fixed to each of the actual physical channels, thus less complicated than playback PCM channels. Regards Takashi Sakamoto