24 Sep
2019
24 Sep
'19
5:33 p.m.
On Tue, Sep 24, 2019 at 4:44 PM Charles Keepax < ckeepax@opensource.cirrus.com> wrote:
"at one point we were just closing the stream (somehow) if we detected a change in e.g. sample-rate, so the user-space application would fail on snd_pcm_readi()"
snd_pcm_stop(p_spdif->capture_stream,SNDRV_PCM_STATE_DISCONNECTED);
Ah ok yeah that seems like a pretty good option to me thus forcing user-space to re-open at the new params.
E.g. SPDIF receivers do that when sample rate change is detected in a separate timer thread
https://github.com/torvalds/linux/blob/master/sound/i2c/other/ak4114.c#L588