61 static void snd_usb_audio_stream_free(struct snd_usb_stream *stream)  in snd_usb_audio_stream_free()  argument
63 	free_substream(&stream->substream[0]);  in snd_usb_audio_stream_free()
64 	free_substream(&stream->substream[1]);  in snd_usb_audio_stream_free()
65 	list_del(&stream->list);  in snd_usb_audio_stream_free()
66 	kfree(stream);  in snd_usb_audio_stream_free()
71 	struct snd_usb_stream *stream = pcm->private_data;  in snd_usb_audio_pcm_free()  local
72 	if (stream) {  in snd_usb_audio_pcm_free()
73 		stream->pcm = NULL;  in snd_usb_audio_pcm_free()
74 		snd_usb_audio_stream_free(stream);  in snd_usb_audio_pcm_free()
83 				   int stream,  in snd_usb_init_substream()  argument
86 	struct snd_usb_substream *subs = &as->substream[stream];  in snd_usb_init_substream()
91 	subs->stream = as;  in snd_usb_init_substream()
92 	subs->direction = stream;  in snd_usb_init_substream()
98 	snd_usb_set_pcm_ops(as->pcm, stream);  in snd_usb_init_substream()
202 static int add_chmap(struct snd_pcm *pcm, int stream,  in add_chmap()  argument
217 	err = snd_pcm_add_chmap_ctls(pcm, stream, NULL, 0, 0, &chmap);  in add_chmap()
321 			     int stream,  in snd_usb_add_audio_stream()  argument
332 		subs = &as->substream[stream];  in snd_usb_add_audio_stream()
344 		subs = &as->substream[stream];  in snd_usb_add_audio_stream()
347 		err = snd_pcm_new_stream(as->pcm, stream, 1);  in snd_usb_add_audio_stream()
350 		snd_usb_init_substream(as, stream, fp);  in snd_usb_add_audio_stream()
351 		return add_chmap(as->pcm, stream, subs);  in snd_usb_add_audio_stream()
362 			  stream == SNDRV_PCM_STREAM_PLAYBACK ? 1 : 0,  in snd_usb_add_audio_stream()
363 			  stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1,  in snd_usb_add_audio_stream()
378 	snd_usb_init_substream(as, stream, fp);  in snd_usb_add_audio_stream()
385 	return add_chmap(pcm, stream, &as->substream[stream]);  in snd_usb_add_audio_stream()
477 	int i, altno, err, stream;  in snd_usb_parse_audio_interface()  local
515 		stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ?  in snd_usb_parse_audio_interface()
696 			if (stream == SNDRV_PCM_STREAM_PLAYBACK)  in snd_usb_parse_audio_interface()
704 		if (snd_usb_parse_audio_format(chip, fp, format, fmt, stream) < 0) {  in snd_usb_parse_audio_interface()
717 		err = snd_usb_add_audio_stream(chip, stream, fp);  in snd_usb_parse_audio_interface()