snd_pcm_trigger_done — Mark the master substream
void snd_pcm_trigger_done ( | struct snd_pcm_substream * substream, |
struct snd_pcm_substream * master); |
When multiple substreams of the same card are linked and the hardware
supports the single-shot operation, the driver calls this in the loop
in snd_pcm_group_for_each_entry for marking the substream as “done”.
Then most of trigger operations are performed only to the given master
substream.
The trigger_master mark is cleared at timestamp updates at the end of trigger operations.