Name
snd_pcm_kernel_ioctl —
Execute PCM ioctl in the kernel-space
Synopsis
int snd_pcm_kernel_ioctl ( | struct snd_pcm_substream * substream, |
| unsigned int cmd, |
| void * arg) ; |
Arguments
substream
PCM substream
cmd
IOCTL cmd
arg
IOCTL argument
Description
The function is provided primarily for OSS layer and USB gadget drivers,
and it allows only the limited set of ioctls (hw_params, sw_params,
prepare, start, drain, drop, forward).