| SND_PCM_HW_PARAM_FIR(9) | PCM API | SND_PCM_HW_PARAM_FIR(9) |
NAME¶
snd_pcm_hw_param_first - refine config space and return minimum value
SYNOPSIS¶
int snd_pcm_hw_param_first(struct snd_pcm_substream * pcm, struct snd_pcm_hw_params * params, snd_pcm_hw_param_t var, int * dir);
ARGUMENTS¶
pcm
PCM instance
params
the hw_params instance
var
parameter to retrieve
dir
pointer to the direction (-1,0,1) or NULL
DESCRIPTION¶
Inside configuration space defined by params remove from var all values > minimum. Reduce configuration space accordingly.
RETURN¶
The minimum, or a negative error code on failure.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |