82 static void snd_usb_init_substream(struct snd_usb_stream *as,  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()
93 	subs->dev = as->chip->dev;  in snd_usb_init_substream()
94 	subs->txfr_quirk = as->chip->txfr_quirk;  in snd_usb_init_substream()
95 	subs->tx_length_quirk = as->chip->tx_length_quirk;  in snd_usb_init_substream()
99 	snd_usb_set_pcm_ops(as->pcm, stream);  in snd_usb_init_substream()
325 	struct snd_usb_stream *as;  in snd_usb_add_audio_stream()  local
330 	list_for_each_entry(as, &chip->pcm_list, list) {  in snd_usb_add_audio_stream()
331 		if (as->fmt_type != fp->fmt_type)  in snd_usb_add_audio_stream()
333 		subs = &as->substream[stream];  in snd_usb_add_audio_stream()
342 	list_for_each_entry(as, &chip->pcm_list, list) {  in snd_usb_add_audio_stream()
343 		if (as->fmt_type != fp->fmt_type)  in snd_usb_add_audio_stream()
345 		subs = &as->substream[stream];  in snd_usb_add_audio_stream()
348 		err = snd_pcm_new_stream(as->pcm, stream, 1);  in snd_usb_add_audio_stream()
351 		snd_usb_init_substream(as, stream, fp);  in snd_usb_add_audio_stream()
352 		return add_chmap(as->pcm, stream, subs);  in snd_usb_add_audio_stream()
356 	as = kzalloc(sizeof(*as), GFP_KERNEL);  in snd_usb_add_audio_stream()
357 	if (!as)  in snd_usb_add_audio_stream()
359 	as->pcm_index = chip->pcm_devs;  in snd_usb_add_audio_stream()
360 	as->chip = chip;  in snd_usb_add_audio_stream()
361 	as->fmt_type = fp->fmt_type;  in snd_usb_add_audio_stream()
367 		kfree(as);  in snd_usb_add_audio_stream()
370 	as->pcm = pcm;  in snd_usb_add_audio_stream()
371 	pcm->private_data = as;  in snd_usb_add_audio_stream()
379 	snd_usb_init_substream(as, stream, fp);  in snd_usb_add_audio_stream()
386 		list_add(&as->list, &chip->pcm_list);  in snd_usb_add_audio_stream()
388 		list_add_tail(&as->list, &chip->pcm_list);  in snd_usb_add_audio_stream()
392 	snd_usb_proc_pcm_format_add(as);  in snd_usb_add_audio_stream()
394 	return add_chmap(pcm, stream, &as->substream[stream]);  in snd_usb_add_audio_stream()
550 			struct uac1_as_header_descriptor *as =  in snd_usb_parse_audio_interface()  local
554 			if (!as) {  in snd_usb_parse_audio_interface()
561 			if (as->bLength < sizeof(*as)) {  in snd_usb_parse_audio_interface()
568 			format = le16_to_cpu(as->wFormatTag); /* remember the format value */  in snd_usb_parse_audio_interface()
571 								       as->bTerminalLink);  in snd_usb_parse_audio_interface()
583 			struct uac2_as_header_descriptor *as =  in snd_usb_parse_audio_interface()  local
586 			if (!as) {  in snd_usb_parse_audio_interface()
593 			if (as->bLength < sizeof(*as)) {  in snd_usb_parse_audio_interface()
600 			num_channels = as->bNrChannels;  in snd_usb_parse_audio_interface()
601 			format = le32_to_cpu(as->bmFormats);  in snd_usb_parse_audio_interface()
602 			chconfig = le32_to_cpu(as->bmChannelConfig);  in snd_usb_parse_audio_interface()
607 									    as->bTerminalLink);  in snd_usb_parse_audio_interface()
616 									      as->bTerminalLink);  in snd_usb_parse_audio_interface()
624 				iface_no, altno, as->bTerminalLink);  in snd_usb_parse_audio_interface()