NAME
snd_dmaengine_pcm_trigger - dmaengine based PCM trigger implementation
SYNOPSIS
int snd_dmaengine_pcm_trigger(struct snd_pcm_substream * substream, int cmd);
ARGUMENTS
substream
PCM substream
cmd
Trigger command
DESCRIPTION
Returns 0 on success, a negative error code otherwise.
This function can be used as the PCM trigger callback for dmaengine based PCM driver implementations.