pcxhr_set_pipe_state
err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 0);
err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);
int pcxhr_set_pipe_state(struct pcxhr_mgr *mgr, int playback_mask, int capture_mask, int start);
err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 0);
return pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);