snd_pcm_hw_constraint_step (9)

int snd_pcm_hw_constraint_step(struct snd_pcm_runtime * runtime, unsigned int cond, snd_pcm_hw_param_t var, unsigned long step);

runtime

PCM runtime instance

cond

condition bits

var

hw_params variable to apply the step constraint

step

step size

Zero if successful, or a negative error code on failure.