Hi Shengjiu, On Wed, Aug 28, 2019 at 2:21 AM Shengjiu Wang <shengjiu.wang@xxxxxxx> wrote: > > The test case is > arecord -Dhw:0 -d 10 -f S16_LE -r 48000 -c 2 temp.wav & > aplay -Dhw:0 -d 30 -f S16_LE -r 48000 -c 2 test.wav > > There will be error after end of arecord: > aplay: pcm_write:2051: write error: Input/output error > > Capture and Playback work in parallel in master mode, one > substream stops, the other substream is impacted, the > reason is that clock is disabled wrongly. > > The clock's reference count is not increased when second > substream starts, the hw_param() function returns in the > beginning because first substream is enabled, then in end > of first substream, the hw_free() disables the clock. > > This patch is to move the clock enablement to the place > before checking of the device enablement in hw_param(). > > Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx> It would be nice if you could add a Fixes tag as well. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
