1. NAME▲

snd_pcm_lib_ioctl - a generic PCM ioctl callback

2. SYNOPSIS ▲

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

3. ARGUMENTS ▲

substream
    the pcm substream instance

cmd
    ioctl command

arg
    ioctl argument

4. DESCRIPTION ▲

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

5. RETURN ▲

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

6. COPYRIGHT ▲