snd_dmaengine_pcm_trigger (9) - Linux Manuals

snd_dmaengine_pcm_trigger: dmaengine based PCM trigger implementation

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.

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