snd_pcm_lib_ioctl (9) - Linux Man Pages

snd_pcm_lib_ioctl: a generic PCM ioctl callback

NAME

snd_pcm_lib_ioctl - a generic PCM ioctl callback

SYNOPSIS

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

ARGUMENTS

substream

the pcm substream instance

cmd

ioctl command

arg

ioctl argument

DESCRIPTION

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

RETURN

Zero if successful, or a negative error code on failure.

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