[alsa-devel] --separate-channels issues

[hong zhang]

Takashi,

When I run following commands with 2 pins inputs.

$ arecord -f S16_LE -r 48000 -c 4 -D plughw:0,1 --separate-channels c1.wav c2.wav c3.wav c4.wav

hd c3.wav and c4.wav returns 0 but c1.wav and c2.wav got right data.
Such as 
$ hd c3.wav 
00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
005ad000

Also, I see trigger Rx start command and then stop command immediately.

Any hint to look into?

Thanks.

---henry