snd_pcm_stream_lock (9) - Linux Manuals
snd_pcm_stream_lock: Lock the PCM stream
NAME
snd_pcm_stream_lock - Lock the PCM stream
SYNOPSIS
-
void snd_pcm_stream_lock(struct snd_pcm_substream
* substream);
ARGUMENTS
substream
-
- PCM substream
DESCRIPTION
This locks the PCM stream's spinlock or mutex depending on the nonatomic flag of the given substream. This also takes the global link rw lock (or rw sem), too, for avoiding the race with linked streams.
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