246 static int isight_open(struct snd_pcm_substream *substream)  in isight_open()  argument
266 	struct isight *isight = substream->private_data;  in isight_open()
268 	substream->runtime->hw = hardware;  in isight_open()
276 static int isight_close(struct snd_pcm_substream *substream)  in isight_close()  argument
278 	struct isight *isight = substream->private_data;  in isight_close()
285 static int isight_hw_params(struct snd_pcm_substream *substream,  in isight_hw_params()  argument
288 	struct isight *isight = substream->private_data;  in isight_hw_params()
291 	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,  in isight_hw_params()
330 static int isight_hw_free(struct snd_pcm_substream *substream)  in isight_hw_free()  argument
332 	struct isight *isight = substream->private_data;  in isight_hw_free()
340 	return snd_pcm_lib_free_vmalloc_buffer(substream);  in isight_hw_free()
406 static int isight_prepare(struct snd_pcm_substream *substream)  in isight_prepare()  argument
408 	struct isight *isight = substream->private_data;  in isight_prepare()
421 static int isight_trigger(struct snd_pcm_substream *substream, int cmd)  in isight_trigger()  argument
423 	struct isight *isight = substream->private_data;  in isight_trigger()
438 static snd_pcm_uframes_t isight_pointer(struct snd_pcm_substream *substream)  in isight_pointer()  argument
440 	struct isight *isight = substream->private_data;  in isight_pointer()
467 	isight->pcm = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;  in isight_create_pcm()