snd_pcm_hw_param_value (9) Linux Manual Page
snd_pcm_hw_param_value – return params field var value
Synopsis
int snd_pcm_hw_param_value(const struct snd_pcm_hw_params *params, snd_pcm_hw_param_t var, int *dir);Arguments
params
-
- the hw_params instance
var
- parameter to retrieve
dir
- pointer to the direction (-1,0,1) or NULL
Return
The value for field var if it’s fixed in configuration space defined by params. –EINVAL otherwise.