snd_pcm_hw_constraint_single (9) Linux Manual Page
snd_pcm_hw_constraint_single – Constrain parameter to a single value
Synopsis
int snd_pcm_hw_constraint_single(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, unsigned int val);Arguments
runtime
-
- PCM runtime instance
var
- The hw_params variable to constrain
val
- The value to constrain to
Return
Positive if the value is changed, zero if it’s not changed, or a negative error code.