pcm_capture_prepare
.prepare = pcm_capture_prepare,
.prepare = pcm_capture_prepare,
.prepare = pcm_capture_prepare,
.prepare = pcm_capture_prepare,
.prepare = pcm_capture_prepare,
.prepare = pcm_capture_prepare,
.pcm_capture_prepare = atc_pcm_capture_prepare,
int (*pcm_capture_prepare)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
err = atc->pcm_capture_prepare(atc, apcm);