Dne 26. 03. 20 v 18:19 Pavel Hofman napsal(a):
Hi,
Please how is the module params pcm_notify supposed to be used, to do
what the documentation says: Break capture when PCM format/rate/channels
changes?
Breaking capture side operation when the playback side changes the
params is very useful, but I cannot find a way to use this param
properly. When the capture side is open, the playback side cannot use a
different parameter than the one currently used by the capture side (the
configuration space is limited)
Really? Then it's a bug introduced by the last changes.
If you look to sources:
if (get_notify(dpcm))
runtime->hw = loopback_pcm_hardware;
else
runtime->hw = cable->hw;
And:
if (!(cable->valid & ~(1 << substream->stream)) ||
(get_setup(dpcm)->notify &&
substream->stream == SNDRV_PCM_STREAM_PLAYBACK))
params_change(substream);
So the functionality should be there.
Jaroslav
--
Jaroslav Kysela <perex@xxxxxxxx>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.
