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- stretch 4.9.168-1
| SND_PCM_TRIGGER_DONE(9) | PCM API | SND_PCM_TRIGGER_DONE(9) |
NAME¶
snd_pcm_trigger_done - Mark the master substreamSYNOPSIS¶
void snd_pcm_trigger_done(struct snd_pcm_substream * substream, struct snd_pcm_substream * master);
ARGUMENTS¶
substreamthe pcm substream instance
master
the linked master substream
DESCRIPTION¶
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.
COPYRIGHT¶
| April 2019 | Kernel Hackers Manual 4.9. |