SND_PCM_CAPTURE_READ(9) Sound Devices SND_PCM_CAPTURE_READ(9)NAMEsnd_pcm_capture_ready - check whether the capture buffer is availableSYNOPSISint snd_pcm_capture_ready(struct snd_pcm_substream * substream);ARGUMENTSsubstream the pcm substream instanceDESCRIPTIONChecks whether enough capture data is available on the capture buffer. Returns non-zero if available, or zero if not.COPYRIGHTKernel Hackers Manual 2.6. July 2010 SND_PCM_CAPTURE_READ(9)