SND_PCM_LIB_IOCTL

Section: PCM API (9)
Updated: February 2011
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NAME

snd_pcm_lib_ioctl - a generic PCM ioctl callback

int snd_pcm_lib_ioctl(struct snd_pcm_substream * substream, unsigned int cmd, void * arg);

substream

cmd

arg

Processes the generic ioctl commands for PCM. Can be passed as the ioctl callback for PCM ops.

Returns zero if successful, or a negative error code on failure.