[alsa-devel] channel map for intel8x0

[Raymond Yau]

>
> > Refer to patch ALSA: Implement channel maps for standard onboard AC97
> > drivers
> >
> > e36e3b86c78cee9c7435eb33e0ef8a788193e812<
> https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/intel8x0.c?id=e36e3b86c78cee9c7435eb33e0ef8a788193e812
> >
> >
> > It seem that channal map is not working when testing with
> > alsa-lib/test/chmap.c with the emulated intel8x0 inside virtualbox
>
> What doesn't work actually?  The lack of chmap for the capture?
> Please give a bit more explanations about your problem.
>
>
 /alsa-lib/test$ ./chmap -Dhw:0,0 query
Cannot query maps

>
> - if (rec->ac97_idx == ICHD_PCMOUT && rec->playback_ops)
> +if (device == 0 && rec->playback_ops) {
>

after change the above line

/alsa-lib/test$ ./chmap -Dhw:0,0 query
Type = FIXED, Channels = 2
  FL FR

is there any option to test the channel map of the capture device ?


 ./chmap

usage: chmap [options] query
       chmap [options] get
       chmap [options] set CH0 CH1 CH2...
options:
  -D device     Specify PCM device to handle
  -f format     PCM format
  -c channels   Channels
  -r rate       Sample rate