SND_PCM_HW_PARAM_VAL(9) PCM API SND_PCM_HW_PARAM_VAL(9)
NAME
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.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SND_PCM_HW_PARAM_VAL(9)
