USB_audio.h revision e6464087
1#ifndef USB_AUDIO_H
2#define USB_AUDIO_H
3
4// (Partial) USB Device Class Definition for Audio Devices
5// R1: Release 1.0 March 18, 1998
6// R2: Release 2.0 May 31, 2006
7
8#include <SupportDefs.h>
9
10#define USB_AUDIO_DEVICE_CLASS 			0x01
11#define USB_AUDIO_CLASS_VERSION			0x0100
12
13enum {
14	USB_AUDIO_INTERFACE_AUDIO_CLASS		= 0x01
15};
16
17enum { // Audio Interface Subclasses
18	USB_AUDIO_INTERFACE_UNDEFINED_SUBCLASS =	0x00,
19	USB_AUDIO_INTERFACE_AUDIOCONTROL_SUBCLASS =	0x01,
20	USB_AUDIO_INTERFACE_AUDIOSTREAMING_SUBCLASS,
21	USB_AUDIO_INTERFACE_MIDISTREAMING_SUBCLASS
22};
23
24enum { // Audio Interface Protocol Codes
25	USB_AUDIO_PROTOCOL_UNDEFINED =	0x00
26};
27
28enum { // Audio Interface Class-Specific Descriptor Types
29	USB_AUDIO_CS_UNDEFINED				= 0x20,
30	USB_AUDIO_CS_DEVICE					= 0x21,
31	USB_AUDIO_CS_CONFIGURATION			= 0x22,
32	USB_AUDIO_CS_STRING					= 0x23,
33	USB_AUDIO_CS_INTERFACE				= 0x24,
34	USB_AUDIO_CS_ENDPOINT				= 0x25
35};
36
37
38enum { // Audio Class-Specific AudioControl Interface descriptor subtypes
39	USB_AUDIO_AC_DESCRIPTOR_UNDEFINED	= 0x00,
40	USB_AUDIO_AC_HEADER					= 0x01,
41	USB_AUDIO_AC_INPUT_TERMINAL			= 0x02,
42	USB_AUDIO_AC_OUTPUT_TERMINAL		= 0x03,
43	USB_AUDIO_AC_MIXER_UNIT				= 0x04,
44	USB_AUDIO_AC_SELECTOR_UNIT			= 0x05,
45	USB_AUDIO_AC_FEATURE_UNIT			= 0x06,
46	USB_AUDIO_AC_PROCESSING_UNIT		= 0x07,
47	USB_AUDIO_AC_EXTENSION_UNIT			= 0x08,
48	USB_AUDIO_AC_EFFECT_UNIT_R2			= 0x07,
49	USB_AUDIO_AC_PROCESSING_UNIT_R2		= 0x08,
50	USB_AUDIO_AC_EXTENSION_UNIT_R2		= 0x09,
51	USB_AUDIO_AC_CLOCK_SOURCE_R2		= 0x0A,
52	USB_AUDIO_AC_CLOCK_SELECTOR_R2		= 0x0B,
53	USB_AUDIO_AC_CLOCK_MULTIPLIER_R2	= 0x0C,
54	USB_AUDIO_AC_SAMPLE_RATE_CONVERTER_R2 = 0x0D
55};
56
57
58// Class Specific Audio Control Interface Header
59// R1: Table 4-2 p.37 / R2: Table 4-5 p.48
60typedef struct {
61	uint8	length;
62	uint8	descriptor_type;		// USB_AUDIO_CS_INTERFACE
63	uint8	descriptor_subtype; 	// USB_AUDIO_AC_HEADER
64	uint16	bcd_release_no;
65	union {
66		struct {
67			uint16	total_length;
68			uint8	in_collection;
69			uint8	interface_numbers[0];
70		} _PACKED r1;
71
72		struct {
73			uint8	function_category;
74			uint16	total_length;
75			uint8	bm_controls;
76		} _PACKED r2;
77	};
78} _PACKED usb_audiocontrol_header_descriptor;
79
80
81// Input Terminal Descriptor
82// R1: Table 4-3 p.39 / R2: Table 4-9, page 53
83typedef struct {
84	uint8	length;
85	uint8	descriptor_type;		// USB_AUDIO_CS_INTERFACE
86	uint8	descriptor_subtype; 	// USB_AUDIO_AC_INPUT_TERMINAL
87	uint8	terminal_id;
88	uint16	terminal_type;
89	uint8	assoc_terminal;
90	union {
91		struct {
92			uint8	num_channels;
93			uint8	channel_config;
94			uint8	channel_names;
95			uint8	terminal;
96		} _PACKED r1;
97
98		struct {
99			uint8	clock_source_id;
100			uint8	num_channels;
101			uint32	channel_config;
102			uint8	channel_names;
103			uint16	bm_controls;
104			uint8	terminal;
105		} _PACKED r2;
106	};
107} _PACKED usb_audio_input_terminal_descriptor;
108
109
110// Output Terminal Descriptor
111// R1: Table 4-4 p.40 / R2: Table 4-10, page 54
112typedef struct {
113	uint8	length;
114	uint8	descriptor_type;		// USB_AUDIO_CS_INTERFACE
115	uint8	descriptor_subtype; 	// USB_AUDIO_AC_OUTPUT_TERMINAL
116	uint8	terminal_id;
117	uint16	terminal_type;
118	uint8	assoc_terminal;
119	uint8	source_id;
120	union {
121		struct {
122			uint8	terminal;
123		} _PACKED r1;
124
125		struct {
126			uint8	clock_source_id;
127			uint16	bm_controls;
128			uint8	terminal;
129		} _PACKED r2;
130	};
131} _PACKED usb_audio_output_terminal_descriptor;
132
133
134// pseudo-descriptor for a section corresponding to logical output channels
135// used in mixer, processing and extension descriptions.
136typedef struct {
137	uint8	num_output_pins; 		// number of mixer output pins
138	uint16	channel_config;		 	// location of logical channels
139	uint8	channel_names;		 	// id of name string of first logical channel
140} _PACKED usb_audio_output_channels_descriptor_r1;
141
142typedef struct {
143	uint8	num_output_pins; 		// number of mixer output pins
144	uint32	channel_config;		 	// location of logical channels
145	uint8	channel_names;		 	// id of name string of first logical channel
146} _PACKED usb_audio_output_channels_descriptor;
147
148
149// Mixer Unit Descriptor
150// R1: Table 4-5 p.41 / R2: Table 4-11, page 57
151typedef struct {
152	uint8	length;
153	uint8	descriptor_type;		// USB_AUDIO_CS_INTERFACE
154	uint8	descriptor_subtype; 	// USB_AUDIO_AC_MIXER_UNIT
155	uint8	unit_id;
156	uint8	num_input_pins;
157	uint8	input_pins[1];
158	// use usb_audio_output_channels_descriptor to parse the rest
159} _PACKED usb_audio_mixer_unit_descriptor;
160
161
162// Selector Unit Descriptor
163// R1: Table 4-6 p.43 / R2: Table 4-12, page 58
164typedef struct {
165	uint8	length;
166	uint8	descriptor_type;		// USB_AUDIO_CS_INTERFACE
167	uint8	descriptor_subtype; 	// USB_AUDIO_AC_SELECTOR_UNIT
168	uint8	unit_id;
169	uint8	num_input_pins;
170	uint8	input_pins[1];
171	// uint8 selector_string;
172} _PACKED usb_audio_selector_unit_descriptor;
173
174
175// Feature Unit Descriptor
176// R1: Table 4-7 p.43 / R2: Table 4-13, page 59
177typedef struct {
178	uint8	length;
179	uint8	descriptor_type;		// USB_AUDIO_CS_INTERFACE
180	uint8	descriptor_subtype; 	// USB_AUDIO_AC_FEATURE_UNIT
181	uint8	unit_id;
182	uint8	source_id;
183	union {
184		struct {
185			uint8	control_size;
186			uint8	bma_controls[1];
187		//	uint8	feature_string;
188		} _PACKED r1;
189
190		struct {
191			uint32	bma_controls[1];
192		//	uint8	feature_string;
193		} _PACKED r2;
194	};
195} _PACKED usb_audio_feature_unit_descriptor;
196
197
198// Processing Unit Descriptor
199// R1: Table 4-8 p.45 / R2: Table 4-20, page 66
200typedef struct {
201	uint8	length;
202	uint8	descriptor_type;		// USB_AUDIO_CS_INTERFACE
203	uint8	descriptor_subtype; 	// USB_AUDIO_AC_PROCESSING_UNIT
204	uint8	unit_id;
205	uint16	process_type;
206	uint8	num_input_pins;
207	uint8	input_pins[1];
208	// use usb_audio_output_channels_descriptor to parse the rest
209// TODO - the bmControl!!!!
210} _PACKED usb_audio_processing_unit_descriptor;
211
212// Extension Unit Descriptor
213// R1: Table 4-15, p. 56 / R2: Table 4-24, p.73
214typedef struct {
215	uint8	length;
216	uint8	descriptor_type;		// USB_AUDIO_CS_INTERFACE
217	uint8	descriptor_subtype; 	// USB_AUDIO_AC_EXTENSION_UNIT
218	uint8	unit_id;
219	uint16	extension_code;
220	uint8	num_input_pins;
221	uint8	input_pins[1];
222	// use usb_audio_output_channels_descriptor to parse the rest
223} _PACKED usb_audio_extension_unit_descriptor;
224
225
226enum { // Audio Class-Specific AudioStreaming Interface descriptor subtypes
227	USB_AUDIO_AS_DESCRIPTOR_UNDEFINED	= 0x00,
228	USB_AUDIO_AS_GENERAL				= 0x01,
229	USB_AUDIO_AS_FORMAT_TYPE			= 0x02,
230	USB_AUDIO_AS_FORMAT_SPECIFIC		= 0x03
231};
232
233// Class Specific Audio Streaming Interface Descriptor
234// R1: Table 4-19 p.60 / R2: Table 4-27 p.76
235typedef struct {
236	uint8	length;
237	uint8	descriptor_type;		// USB_AUDIO_CS_INTERFACE
238	uint8	descriptor_subtype; 	// USB_AUDIO_AS_GENERAL
239	uint8	terminal_link;
240	union {
241		struct {
242			uint8	delay;
243			uint16	format_tag;
244		} _PACKED r1;
245
246		struct {
247			uint8	bm_controls;
248			uint8	format_type;
249			uint32	bm_formats;
250			uint8	num_output_pins;
251			uint32	channel_config;
252			uint8	channel_names;
253		} _PACKED r2;
254	};
255} _PACKED usb_audio_streaming_interface_descriptor;
256
257
258// Class-specific As Isochronous Audio Data Endpoint descriptor
259// R1: Table 4-21, p. 62 / R2: Table 4-34, page 87
260typedef struct {
261	uint8	length;
262	uint8	descriptor_type;		// USB_AUDIO_CS_ENDPOINT
263	uint8	descriptor_subtype; 	// USB_AUDIO_EP_GENERAL
264	uint8	attributes;
265	uint8	lock_delay_units;
266	uint16	lock_delay;
267} _PACKED usb_audio_streaming_endpoint_descriptor;
268
269
270// Sampling Rate are represented as 3-byte integer
271typedef struct {
272	uint8	bytes[3];
273} _PACKED usb_audio_sampling_freq;
274
275
276// Format Type I/II/III Descriptors
277// T1: Table 2-1, p.10 etc.
278// T2: Table 2-2, p.15 etc.
279typedef struct {
280	uint8 length;
281	uint8 descriptor_type;				// USB_AUDIO_CS_INTERFACE
282	uint8 descriptor_subtype;			// USB_AUDIO_AS_FORMAT_TYPE
283	uint8 format_type;					// USB_AUDIO_FORMAT_TYPE_I/II/III
284	union {
285		struct {
286			uint8 nr_channels;
287			uint8 subframe_size;
288			uint8 bit_resolution;
289			uint8 sam_freq_type;
290			usb_audio_sampling_freq sam_freqs[1];
291		} _PACKED typeI;
292
293		struct {
294			uint16 max_bit_rate;
295			uint16 samples_per_frame;
296			uint8 sam_freq_type;
297			usb_audio_sampling_freq sam_freqs[1];
298		} _PACKED typeII;
299
300		struct {
301			uint8 nr_channels;
302			uint8 subframe_size;
303			uint8 bit_resolution;
304			uint8 sam_freq_type;
305			usb_audio_sampling_freq sam_freqs[1];
306		} _PACKED typeIII;
307	};
308} _PACKED usb_audio_format_descriptor;
309
310
311enum { // Processing Unit Process Types  (for USB_AUDIO_AC_PROCESSING_UNIT)
312	USB_AUDIO_UPDOWNMIX_PROCESS	= 0x01,
313	USB_AUDIO_DOLBY_PROLOGIC_PROCESS,
314	USB_AUDIO_3D_STEREO_EXTENDER_PROCESS,
315	USB_AUDIO_REVERBERATION_PROCESS,
316	USB_AUDIO_CHORUS_PROCESS,
317	USB_AUDIO_DYN_RANGE_COMP_PROCESS
318};
319
320enum { // Audio Class-Specific Request Codes
321	USB_AUDIO_SET_CUR		= 0x01,
322	USB_AUDIO_GET_CUR		= 0x81,
323	USB_AUDIO_SET_MIN		= 0x02,
324	USB_AUDIO_GET_MIN		= 0x82,
325	USB_AUDIO_SET_MAX		= 0x03,
326	USB_AUDIO_GET_MAX		= 0x83,
327	USB_AUDIO_SET_RES		= 0x04,
328	USB_AUDIO_GET_RES		= 0x84,
329	USB_AUDIO_SET_MEM		= 0x05,
330	USB_AUDIO_GET_MEM		= 0x85,
331	USB_AUDIO_GET_STATUS	= 0xFF
332};
333
334enum { // Terminal Control Selectors
335	USB_AUDIO_COPY_PROTECT_CONTROL = 0x01
336};
337
338// R2: A.17.5 Mixer Unit Control Selectors
339enum {
340	USB_AUDIO_MU_CONTROL_UNDEFINED		= 0x00,
341	USB_AUDIO_MIXER_CONTROL				= 0x01,
342	USB_AUDIO_CLUSTER_CONTROL			= 0x02,
343	USB_AUDIO_UNDERFLOW_CONTROL			= 0x03,
344	USB_AUDIO_OVERFLOW_CONTROL			= 0x04,
345	USB_AUDIO_LATENCY_CONTROL			= 0x05
346};
347
348/* A.10.2 Feature Unit Control Selectors */
349enum {
350	USB_AUDIO_AC_FU_CONTROL_UNDEFINED	= 0x00,
351	USB_AUDIO_MUTE_CONTROL				= 0x01,
352	USB_AUDIO_VOLUME_CONTROL			= 0x02,
353	USB_AUDIO_BASS_CONTROL				= 0x03,
354	USB_AUDIO_MID_CONTROL				= 0x04,
355	USB_AUDIO_TREBLE_CONTROL			= 0x05,
356	USB_AUDIO_GRAPHIC_EQUALIZER_CONTROL	= 0x06,
357	USB_AUDIO_AUTOMATIC_GAIN_CONTROL	= 0x07,
358	USB_AUDIO_DELAY_CONTROL				= 0x08,
359	USB_AUDIO_BASS_BOOST_CONTROL		= 0x09,
360	USB_AUDIO_LOUDNESS_CONTROL			= 0x0A
361};
362
363/* A.10.3.1 Up/Down-mix Processing Unit Control Selectors */
364#define USB_AUDIO_UD_CONTROL_UNDEFINED 0x00
365#define USB_AUDIO_UD_ENABLED_CONTROL 0x01
366#define USB_AUDIO_UD_MODE_SELECT_CONTROL 0x02
367
368/* A.10.3.2 Dolby Prologic(tm) Processing Unit Control Selectors */
369#define USB_AUDIO_DP_CONTROL_UNDEFINED 0x00
370#define USB_AUDIO_DP_ENABLE_CONTROL 0x01
371#define USB_AUDIO_DP_MODE_SELECT_CONTROL 0x02
372
373/* A.10.3.3 3D Stereo Extender Processing Unit Control Selectors */
374#define USB_AUDIO_3D_CONTROL_UNDEFINED 0x00
375#define USB_AUDIO_3D_ENABLED_CONTROL 0x01
376#define USB_AUDIO_3D_SPACIOUSNESS_CONTROL 0x03
377
378/* A.10.3.4 Reverberation Processing Unit Control Selectors */
379#define USB_AUDIO_RV_CONTROL_UNDEFINED 0x00
380#define USB_AUDIO_RV_ENABLE_CONTROL 0x01
381#define USB_AUDIO_RV_REVERB_LEVEL_CONTROL 0x02
382#define USB_AUDIO_RV_REVERB_TIME_CONTROL 0x03
383#define USB_AUDIO_RV_REVERB_FEEDBACK_CONTROL 0x04
384
385/* A.10.3.5 Chorus Processing Unit Control Selectors */
386#define USB_AUDIO_CH_CONTROL_UNDEFINED 0x00
387#define USB_AUDIO_CH_ENABLE_CONTROL 0x01
388#define USB_AUDIO_CHORUS_LEVEL_CONTROL 0x02
389#define USB_AUDIO_CHORUS_RATE_CONTROL 0x03
390#define USB_AUDIO_CHORUS_DETH_CONTROL 0x04
391
392/* A.10.3.6 Dynamic Range Compressor Processing Unit Control Selectors */
393#define USB_AUDIO_DR_CONTROL_UNDEFINED 0x00
394#define USB_AUDIO_DR_ENABLE_CONTROL 0x01
395#define USB_AUDIO_COMPRESSION_RATE_CONTROL 0x02
396#define USB_AUDIO_MAXAMPL_CONTROL 0x03
397#define USB_AUDIO_THRESHOLD_CONTROL 0x04
398#define USB_AUDIO_ATTACK_TIME 0x05
399#define USB_AUDIO_RELEASE_TIME 0x06
400
401/* A.10.4 Extension Unit Control Selectors */
402#define USB_AUDIO_XU_CONTROL_UNDEFINED 0x00
403#define USB_AUDIO_XU_ENABLE_CONTROL 0x01
404
405/* A.10.5 Endpoint Control Selectors */
406enum {
407	USB_AUDIO_EP_CONTROL_UNDEFINED			= 0x00,
408	USB_AUDIO_SAMPLING_FREQ_CONTROL			= 0x01,
409	USB_AUDIO_PITCH_CONTROL					= 0x02
410};
411
412/*
413typedef struct
414{
415	uint8 length;
416	uint8 type;
417	uint8 subtype;
418	uint8 unit_id;
419	uint8 source_id;
420	uint8 control_size;
421	uint16 controls[0];
422} _PACKED usb_audio_feature_unit_descriptor;
423
424typedef struct {
425	uint8 length;
426	uint8 type;
427	uint8 subtype;
428	uint8 format_type;
429	uint8 num_channels;
430	uint8 subframe_size;
431	uint8 bit_resolution;
432	uint8 sample_freq_type;
433	uint8 sample_freq[3];	// [0] + [1] << 8 + [2] << 16
434	//  if sample_freq_type != 1,
435	// (sample_freq_type - 1) x uint8 sample_freq[3] follows...
436} _PACKED usb_audio_format_type_descriptor;
437*/
438// bitset for feature control bitmap
439// Table 4-7, page 44, bmaControls field
440enum {
441	BMA_CTL_MUTE_R1			= 0X0001,
442	BMA_CTL_VOLUME_R1		= 0X0002,
443	BMA_CTL_BASS_R1			= 0X0004,
444	BMA_CTL_MID_R1			= 0X0008,
445	BMA_CTL_TREBLE_R1		= 0X0010,
446	BMA_CTL_GRAPHEQ_R1		= 0X0020,
447	BMA_CTL_AUTOGAIN_R1		= 0X0040,
448	BMA_CTL_DELAY_R1		= 0X0080,
449	BMA_CTL_BASSBOOST_R1	= 0X0100,
450	BMA_CTL_LOUDNESS_R1		= 0X0200,
451	// Release 2.0
452	BMA_CTL_MUTE			= 0X00000003,
453	BMA_CTL_VOLUME			= 0X0000000C,
454	BMA_CTL_BASS			= 0X00000030,
455	BMA_CTL_MID				= 0X000000C0,
456	BMA_CTL_TREBLE			= 0X00000300,
457	BMA_CTL_GRAPHEQ			= 0X00000C00,
458	BMA_CTL_AUTOGAIN		= 0X00003000,
459	BMA_CTL_DELAY			= 0X0000C000,
460	BMA_CTL_BASSBOOST		= 0X00030000,
461	BMA_CTL_LOUDNESS		= 0X000C0000,
462	BMA_CTL_INPUTGAIN		= 0X00300000,
463	BMA_CTL_INPUTGAINPAD	= 0X00C00000,
464	BMA_CTL_PHASEINVERTER	= 0X03000000,
465	BMA_CTL_UNDERFLOW		= 0X0C000000,
466	BMA_CTL_OVERFLOW		= 0X30000000
467};
468
469// Table A-4, page 30
470// Format Type Codes
471enum {
472	USB_AUDIO_FORMAT_TYPE_UNDEFINED		= 0x00,
473	USB_AUDIO_FORMAT_TYPE_I				= 0x01,
474	USB_AUDIO_FORMAT_TYPE_II			= 0x02,
475	USB_AUDIO_FORMAT_TYPE_III			= 0x03
476};
477
478// Table A-1, page 29, wFormatTag
479// Audio Data Format Type I codes
480enum {
481	USB_AUDIO_FORMAT_TYPE_I_UNDEFINED	= 0x0000,
482	USB_AUDIO_FORMAT_PCM				= 0x0001,
483	USB_AUDIO_FORMAT_PCM8				= 0x0002,
484	USB_AUDIO_FORMAT_IEEE_FLOAT			= 0x0003,
485	USB_AUDIO_FORMAT_ALAW				= 0x0004,
486	USB_AUDIO_FORMAT_MULAW				= 0x0005
487};
488
489
490enum {
491	// USB Terminal Types
492	USB_AUDIO_UNDEFINED_USB_IO			= 0x100,
493	USB_AUDIO_STREAMING_USB_IO			= 0x101,
494	USB_AUDIO_VENDOR_USB_IO				= 0x1ff,
495	// Input Terminal Types
496	USB_AUDIO_UNDEFINED_IN				= 0x200,
497	USB_AUDIO_MICROPHONE_IN				= 0x201,
498	USB_AUDIO_DESKTOPMIC_IN				= 0x202,
499	USB_AUDIO_PERSONALMIC_IN			= 0x203,
500	USB_AUDIO_OMNI_MIC_IN				= 0x204,
501	USB_AUDIO_MICS_ARRAY_IN				= 0x205,
502	USB_AUDIO_PROC_MICS_ARRAY_IN		= 0x206,
503	// Output Terminal Types
504	USB_AUDIO_UNDEFINED_OUT				= 0x300,
505	USB_AUDIO_SPEAKER_OUT				= 0x301,
506	USB_AUDIO_HEAD_PHONES_OUT			= 0x302,
507	USB_AUDIO_HMD_AUDIO_OUT				= 0x303,
508	USB_AUDIO_DESKTOP_SPEAKER			= 0x304,
509	USB_AUDIO_ROOM_SPEAKER				= 0x305,
510	USB_AUDIO_COMM_SPEAKER				= 0x306,
511	USB_AUDIO_LFE_SPEAKER				= 0x307,
512	// Bi-directional Terminal Types
513	USB_AUDIO_UNDEFINED_IO				= 0x400,
514	USB_AUDIO_HANDSET_IO				= 0x401,
515	USB_AUDIO_HEADSET_IO				= 0x402,
516	USB_AUDIO_SPEAKER_PHONE_IO			= 0x403,
517	USB_AUDIO_SPEAKER_PHONEES_IO		= 0x404,
518	USB_AUDIO_SPEAKER_PHONEEC_IO		= 0x405,
519	// Telephony Terminal Types
520	USB_AUDIO_UNDEF_TELEPHONY_IO		= 0x500,
521	USB_AUDIO_PHONE_LINE_IO				= 0x501,
522	USB_AUDIO_TELEPHONE_IO				= 0x502,
523	USB_AUDIO_DOWNLINE_PHONE_IO			= 0x503,
524	// External Terminal Types
525	USB_AUDIO_UNDEFINEDEXT_IO			= 0x600,
526	USB_AUDIO_ANALOG_CONNECTOR_IO		= 0x601,
527	USB_AUDIO_DAINTERFACE_IO			= 0x602,
528	USB_AUDIO_LINE_CONNECTOR_IO			= 0x603,
529	USB_AUDIO_LEGACY_CONNECTOR_IO		= 0x604,
530	USB_AUDIO_SPDIF_INTERFACE_IO		= 0x605,
531	USB_AUDIO_DA1394_STREAM_IO			= 0x606,
532	USB_AUDIO_DV1394_STREAMSOUND_IO		= 0x607,
533	USB_AUDIO_ADAT_LIGHTPIPE_IO			= 0x608,
534	USB_AUDIO_TDIF_IO					= 0x609,
535	USB_AUDIO_MADI_IO					= 0x60a,
536	// Embedded Terminal Types
537	USB_AUDIO_UNDEF_EMBEDDED_IO			= 0x700,
538	USB_AUDIO_LC_NOISE_SOURCE_OUT		= 0x701,
539	USB_AUDIO_EQUALIZATION_NOISE_OUT	= 0x702,
540	USB_AUDIO_CDPLAYER_IN				= 0x703,
541	USB_AUDIO_DAT_IO					= 0x704,
542	USB_AUDIO_DCC_IO					= 0x705,
543	USB_AUDIO_MINI_DISK_IO				= 0x706,
544	USB_AUDIO_ANALOG_TAPE_IO			= 0x707,
545	USB_AUDIO_PHONOGRAPH_IN				= 0x708,
546	USB_AUDIO_VCR_AUDIO_IN				= 0x709,
547	USB_AUDIO_VIDEO_DISC_AUDIO_IN		= 0x70a,
548	USB_AUDIO_DVD_AUDIO_IN				= 0x70b,
549	USB_AUDIO_TV_TUNER_AUDIO_IN			= 0x70c,
550	USB_AUDIO_SAT_RECEIVER_AUDIO_IN		= 0x70d,
551	USB_AUDIO_CABLE_TUNER_AUDIO_IN		= 0x70e,
552	USB_AUDIO_DSS_AUDIO_IN				= 0x70f,
553	USB_AUDIO_RADIO_RECEIVER_IN			= 0x710,
554	USB_AUDIO_RADIO_TRANSMITTER_IN		= 0x711,
555	USB_AUDIO_MULTI_TRACK_RECORDER_IO	= 0x712,
556	USB_AUDIO_SYNTHESIZER_IO			= 0x713,
557	USB_AUDIO_PIANO_IO					= 0x714,
558	USB_AUDIO_GUITAR_IO					= 0x715,
559	USB_AUDIO_DRUMS_IO					= 0x716,
560	USB_AUDIO_INSTRUMENT_IO				= 0x717
561};
562
563
564#endif	// USB_AUDIO_H
565