I just tried this:
~$ speaker-test -c 6 -t wav -Dhw:CARD=CA0106,DEV=0
speaker-test 1.0.27.2
Playback device is hw:CARD=CA0106,DEV=0 Stream parameters are 48000Hz, S16_LE, 6 channels WAV file(s) Channels count (6) not available for playbacks: Invalid argument Setting of hwparams failed: Invalid argument
I just tried this:
~$ speaker-test -c 6 -t wav -Dhw:CARD= CA0106, DEV=0
speaker-test 1.0.27.2
Playback device is hw:CARD= CA0106, DEV=0
Stream parameters are 48000Hz, S16_LE, 6 channels
WAV file(s)
Channels count (6) not available for playbacks: Invalid argument
Setting of hwparams failed: Invalid argument