summaryrefslogtreecommitdiff
path: root/include/uapi/linux/usb/video.h
blob: 69ab695fad2e2729bd68921ff934ec095ae07121 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
/*
 * USB Video Class definitions.
 *
 * Copyright (C) 2009 Laurent Pinchart <laurent.pinchart@skynet.be>
 *
 * This file holds USB constants and structures defined by the USB Device
 * Class Definition for Video Devices. Unless otherwise stated, comments
 * below reference relevant sections of the USB Video Class 1.1 specification
 * available at
 *
 * http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1.zip
 */

#ifndef __LINUX_USB_VIDEO_H
#define __LINUX_USB_VIDEO_H

#include <linux/types.h>

/* --------------------------------------------------------------------------
 * UVC constants
 */

/* A.2. Video Interface Subclass Codes */
#define UVC_SC_UNDEFINED				0x00
#define UVC_SC_VIDEOCONTROL				0x01
#define UVC_SC_VIDEOSTREAMING				0x02
#define UVC_SC_VIDEO_INTERFACE_COLLECTION		0x03

/* A.3. Video Interface Protocol Codes */
#define UVC_PC_PROTOCOL_UNDEFINED			0x00
#define UVC_PC_PROTOCOL_15				0x01

/* A.5. Video Class-Specific VC Interface Descriptor Subtypes */
#define UVC_VC_DESCRIPTOR_UNDEFINED			0x00
#define UVC_VC_HEADER					0x01
#define UVC_VC_INPUT_TERMINAL				0x02
#define UVC_VC_OUTPUT_TERMINAL				0x03
#define UVC_VC_SELECTOR_UNIT				0x04
#define UVC_VC_PROCESSING_UNIT				0x05
#define UVC_VC_EXTENSION_UNIT				0x06

/* A.6. Video Class-Specific VS Interface Descriptor Subtypes */
#define UVC_VS_UNDEFINED				0x00
#define UVC_VS_INPUT_HEADER				0x01
#define UVC_VS_OUTPUT_HEADER				0x02
#define UVC_VS_STILL_IMAGE_FRAME			0x03
#define UVC_VS_FORMAT_UNCOMPRESSED			0x04
#define UVC_VS_FRAME_UNCOMPRESSED			0x05
#define UVC_VS_FORMAT_MJPEG				0x06
#define UVC_VS_FRAME_MJPEG				0x07
#define UVC_VS_FORMAT_MPEG2TS				0x0a
#define UVC_VS_FORMAT_DV				0x0c
#define UVC_VS_COLORFORMAT				0x0d
#define UVC_VS_FORMAT_FRAME_BASED			0x10
#define UVC_VS_FRAME_FRAME_BASED			0x11
#define UVC_VS_FORMAT_STREAM_BASED			0x12

/* A.7. Video Class-Specific Endpoint Descriptor Subtypes */
#define UVC_EP_UNDEFINED				0x00
#define UVC_EP_GENERAL					0x01
#define UVC_EP_ENDPOINT					0x02
#define UVC_EP_INTERRUPT				0x03

/* A.8. Video Class-Specific Request Codes */
#define UVC_RC_UNDEFINED				0x00
#define UVC_SET_CUR					0x01
#define UVC_GET_CUR					0x81
#define UVC_GET_MIN					0x82
#define UVC_GET_MAX					0x83
#define UVC_GET_RES					0x84
#define UVC_GET_LEN					0x85
#define UVC_GET_INFO					0x86
#define UVC_GET_DEF					0x87

/* A.9.1. VideoControl Interface Control Selectors */
#define UVC_VC_CONTROL_UNDEFINED			0x00
#define UVC_VC_VIDEO_POWER_MODE_CONTROL			0x01
#define UVC_VC_REQUEST_ERROR_CODE_CONTROL		0x02

/* A.9.2. Terminal Control Selectors */
#define UVC_TE_CONTROL_UNDEFINED			0x00

/* A.9.3. Selector Unit Control Selectors */
#define UVC_SU_CONTROL_UNDEFINED			0x00
#define UVC_SU_INPUT_SELECT_CONTROL			0x01

/* A.9.4. Camera Terminal Control Selectors */
#define UVC_CT_CONTROL_UNDEFINED			0x00
#define UVC_CT_SCANNING_MODE_CONTROL			0x01
#define UVC_CT_AE_MODE_CONTROL				0x02
#define UVC_CT_AE_PRIORITY_CONTROL			0x03
#define UVC_CT_EXPOSURE_TIME_ABSOLUTE_CONTROL		0x04
#define UVC_CT_EXPOSURE_TIME_RELATIVE_CONTROL		0x05
#define UVC_CT_FOCUS_ABSOLUTE_CONTROL			0x06
#define UVC_CT_FOCUS_RELATIVE_CONTROL			0x07
#define UVC_CT_FOCUS_AUTO_CONTROL			0x08
#define UVC_CT_IRIS_ABSOLUTE_CONTROL			0x09
#define UVC_CT_IRIS_RELATIVE_CONTROL			0x0a
#define UVC_CT_ZOOM_ABSOLUTE_CONTROL			0x0b
#define UVC_CT_ZOOM_RELATIVE_CONTROL			0x0c
#define UVC_CT_PANTILT_ABSOLUTE_CONTROL			0x0d
#define UVC_CT_PANTILT_RELATIVE_CONTROL			0x0e
#define UVC_CT_ROLL_ABSOLUTE_CONTROL			0x0f
#define UVC_CT_ROLL_RELATIVE_CONTROL			0x10
#define UVC_CT_PRIVACY_CONTROL				0x11

/* A.9.5. Processing Unit Control Selectors */
#define UVC_PU_CONTROL_UNDEFINED			0x00
#define UVC_PU_BACKLIGHT_COMPENSATION_CONTROL		0x01
#define UVC_PU_BRIGHTNESS_CONTROL			0x02
#define UVC_PU_CONTRAST_CONTROL				0x03
#define UVC_PU_GAIN_CONTROL				0x04
#define UVC_PU_POWER_LINE_FREQUENCY_CONTROL		0x05
#define UVC_PU_HUE_CONTROL				0x06
#define UVC_PU_SATURATION_CONTROL			0x07
#define UVC_PU_SHARPNESS_CONTROL			0x08
#define UVC_PU_GAMMA_CONTROL				0x09
#define UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL	0x0a
#define UVC_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL	0x0b
#define UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL		0x0c
#define UVC_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL	0x0d
#define UVC_PU_DIGITAL_MULTIPLIER_CONTROL		0x0e
#define UVC_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL		0x0f
#define UVC_PU_HUE_AUTO_CONTROL				0x10
#define UVC_PU_ANALOG_VIDEO_STANDARD_CONTROL		0x11
#define UVC_PU_ANALOG_LOCK_STATUS_CONTROL		0x12

/* A.9.7. VideoStreaming Interface Control Selectors */
#define UVC_VS_CONTROL_UNDEFINED			0x00
#define UVC_VS_PROBE_CONTROL				0x01
#define UVC_VS_COMMIT_CONTROL				0x02
#define UVC_VS_STILL_PROBE_CONTROL			0x03
#define UVC_VS_STILL_COMMIT_CONTROL			0x04
#define UVC_VS_STILL_IMAGE_TRIGGER_CONTROL		0x05
#define UVC_VS_STREAM_ERROR_CODE_CONTROL		0x06
#define UVC_VS_GENERATE_KEY_FRAME_CONTROL		0x07
#define UVC_VS_UPDATE_FRAME_SEGMENT_CONTROL		0x08
#define UVC_VS_SYNC_DELAY_CONTROL			0x09

/* B.1. USB Terminal Types */
#define UVC_TT_VENDOR_SPECIFIC				0x0100
#define UVC_TT_STREAMING				0x0101

/* B.2. Input Terminal Types */
#define UVC_ITT_VENDOR_SPECIFIC				0x0200
#define UVC_ITT_CAMERA					0x0201
#define UVC_ITT_MEDIA_TRANSPORT_INPUT			0x0202

/* B.3. Output Terminal Types */
#define UVC_OTT_VENDOR_SPECIFIC				0x0300
#define UVC_OTT_DISPLAY					0x0301
#define UVC_OTT_MEDIA_TRANSPORT_OUTPUT			0x0302

/* B.4. External Terminal Types */
#define UVC_EXTERNAL_VENDOR_SPECIFIC			0x0400
#define UVC_COMPOSITE_CONNECTOR				0x0401
#define UVC_SVIDEO_CONNECTOR				0x0402
#define UVC_COMPONENT_CONNECTOR				0x0403

/* 2.4.2.2. Status Packet Type */
#define UVC_STATUS_TYPE_CONTROL				1
#define UVC_STATUS_TYPE_STREAMING			2

/* 2.4.3.3. Payload Header Information */
#define UVC_STREAM_EOH					(1 << 7)
#define UVC_STREAM_ERR					(1 << 6)
#define UVC_STREAM_STI					(1 << 5)
#define UVC_STREAM_RES					(1 << 4)
#define UVC_STREAM_SCR					(1 << 3)
#define UVC_STREAM_PTS					(1 << 2)
#define UVC_STREAM_EOF					(1 << 1)
#define UVC_STREAM_FID					(1 << 0)

/* 4.1.2. Control Capabilities */
#define UVC_CONTROL_CAP_GET				(1 << 0)
#define UVC_CONTROL_CAP_SET				(1 << 1)
#define UVC_CONTROL_CAP_DISABLED			(1 << 2)
#define UVC_CONTROL_CAP_AUTOUPDATE			(1 << 3)
#define UVC_CONTROL_CAP_ASYNCHRONOUS			(1 << 4)

/* ------------------------------------------------------------------------
 * UVC structures
 */

/* All UVC descriptors have these 3 fields at the beginning */
struct uvc_descriptor_header {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
} __attribute__((packed));

/* 3.7.2. Video Control Interface Header Descriptor */
struct uvc_header_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u16 bcdUVC;
	__u16 wTotalLength;
	__u32 dwClockFrequency;
	__u8  bInCollection;
	__u8  baInterfaceNr[];
} __attribute__((__packed__));

#define UVC_DT_HEADER_SIZE(n)				(12+(n))

#define UVC_HEADER_DESCRIPTOR(n) \
	uvc_header_descriptor_##n

#define DECLARE_UVC_HEADER_DESCRIPTOR(n)		\
struct UVC_HEADER_DESCRIPTOR(n) {			\
	__u8  bLength;					\
	__u8  bDescriptorType;				\
	__u8  bDescriptorSubType;			\
	__u16 bcdUVC;					\
	__u16 wTotalLength;				\
	__u32 dwClockFrequency;				\
	__u8  bInCollection;				\
	__u8  baInterfaceNr[n];				\
} __attribute__ ((packed))

/* 3.7.2.1. Input Terminal Descriptor */
struct uvc_input_terminal_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bTerminalID;
	__u16 wTerminalType;
	__u8  bAssocTerminal;
	__u8  iTerminal;
} __attribute__((__packed__));

#define UVC_DT_INPUT_TERMINAL_SIZE			8

/* 3.7.2.2. Output Terminal Descriptor */
struct uvc_output_terminal_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bTerminalID;
	__u16 wTerminalType;
	__u8  bAssocTerminal;
	__u8  bSourceID;
	__u8  iTerminal;
} __attribute__((__packed__));

#define UVC_DT_OUTPUT_TERMINAL_SIZE			9

/* 3.7.2.3. Camera Terminal Descriptor */
struct uvc_camera_terminal_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bTerminalID;
	__u16 wTerminalType;
	__u8  bAssocTerminal;
	__u8  iTerminal;
	__u16 wObjectiveFocalLengthMin;
	__u16 wObjectiveFocalLengthMax;
	__u16 wOcularFocalLength;
	__u8  bControlSize;
	__u8  bmControls[3];
} __attribute__((__packed__));

#define UVC_DT_CAMERA_TERMINAL_SIZE(n)			(15+(n))

/* 3.7.2.4. Selector Unit Descriptor */
struct uvc_selector_unit_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bUnitID;
	__u8  bNrInPins;
	__u8  baSourceID[0];
	__u8  iSelector;
} __attribute__((__packed__));

#define UVC_DT_SELECTOR_UNIT_SIZE(n)			(6+(n))

#define UVC_SELECTOR_UNIT_DESCRIPTOR(n)	\
	uvc_selector_unit_descriptor_##n

#define DECLARE_UVC_SELECTOR_UNIT_DESCRIPTOR(n)	\
struct UVC_SELECTOR_UNIT_DESCRIPTOR(n) {		\
	__u8  bLength;					\
	__u8  bDescriptorType;				\
	__u8  bDescriptorSubType;			\
	__u8  bUnitID;					\
	__u8  bNrInPins;				\
	__u8  baSourceID[n];				\
	__u8  iSelector;				\
} __attribute__ ((packed))

/* 3.7.2.5. Processing Unit Descriptor */
struct uvc_processing_unit_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bUnitID;
	__u8  bSourceID;
	__u16 wMaxMultiplier;
	__u8  bControlSize;
	__u8  bmControls[2];
	__u8  iProcessing;
} __attribute__((__packed__));

#define UVC_DT_PROCESSING_UNIT_SIZE(n)			(9+(n))

/* 3.7.2.6. Extension Unit Descriptor */
struct uvc_extension_unit_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bUnitID;
	__u8  guidExtensionCode[16];
	__u8  bNumControls;
	__u8  bNrInPins;
	__u8  baSourceID[0];
	__u8  bControlSize;
	__u8  bmControls[0];
	__u8  iExtension;
} __attribute__((__packed__));

#define UVC_DT_EXTENSION_UNIT_SIZE(p, n)		(24+(p)+(n))

#define UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \
	uvc_extension_unit_descriptor_##p_##n

#define DECLARE_UVC_EXTENSION_UNIT_DESCRIPTOR(p, n)	\
struct UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) {		\
	__u8  bLength;					\
	__u8  bDescriptorType;				\
	__u8  bDescriptorSubType;			\
	__u8  bUnitID;					\
	__u8  guidExtensionCode[16];			\
	__u8  bNumControls;				\
	__u8  bNrInPins;				\
	__u8  baSourceID[p];				\
	__u8  bControlSize;				\
	__u8  bmControls[n];				\
	__u8  iExtension;				\
} __attribute__ ((packed))

/* 3.8.2.2. Video Control Interrupt Endpoint Descriptor */
struct uvc_control_endpoint_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u16 wMaxTransferSize;
} __attribute__((__packed__));

#define UVC_DT_CONTROL_ENDPOINT_SIZE			5

/* 3.9.2.1. Input Header Descriptor */
struct uvc_input_header_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bNumFormats;
	__u16 wTotalLength;
	__u8  bEndpointAddress;
	__u8  bmInfo;
	__u8  bTerminalLink;
	__u8  bStillCaptureMethod;
	__u8  bTriggerSupport;
	__u8  bTriggerUsage;
	__u8  bControlSize;
	__u8  bmaControls[];
} __attribute__((__packed__));

#define UVC_DT_INPUT_HEADER_SIZE(n, p)			(13+(n*p))

#define UVC_INPUT_HEADER_DESCRIPTOR(n, p) \
	uvc_input_header_descriptor_##n_##p

#define DECLARE_UVC_INPUT_HEADER_DESCRIPTOR(n, p)	\
struct UVC_INPUT_HEADER_DESCRIPTOR(n, p) {		\
	__u8  bLength;					\
	__u8  bDescriptorType;				\
	__u8  bDescriptorSubType;			\
	__u8  bNumFormats;				\
	__u16 wTotalLength;				\
	__u8  bEndpointAddress;				\
	__u8  bmInfo;					\
	__u8  bTerminalLink;				\
	__u8  bStillCaptureMethod;			\
	__u8  bTriggerSupport;				\
	__u8  bTriggerUsage;				\
	__u8  bControlSize;				\
	__u8  bmaControls[p][n];			\
} __attribute__ ((packed))

/* 3.9.2.2. Output Header Descriptor */
struct uvc_output_header_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bNumFormats;
	__u16 wTotalLength;
	__u8  bEndpointAddress;
	__u8  bTerminalLink;
	__u8  bControlSize;
	__u8  bmaControls[];
} __attribute__((__packed__));

#define UVC_DT_OUTPUT_HEADER_SIZE(n, p)			(9+(n*p))

#define UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \
	uvc_output_header_descriptor_##n_##p

#define DECLARE_UVC_OUTPUT_HEADER_DESCRIPTOR(n, p)	\
struct UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) {		\
	__u8  bLength;					\
	__u8  bDescriptorType;				\
	__u8  bDescriptorSubType;			\
	__u8  bNumFormats;				\
	__u16 wTotalLength;				\
	__u8  bEndpointAddress;				\
	__u8  bTerminalLink;				\
	__u8  bControlSize;				\
	__u8  bmaControls[p][n];			\
} __attribute__ ((packed))

/* 3.9.2.6. Color matching descriptor */
struct uvc_color_matching_descriptor {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bColorPrimaries;
	__u8  bTransferCharacteristics;
	__u8  bMatrixCoefficients;
} __attribute__((__packed__));

#define UVC_DT_COLOR_MATCHING_SIZE			6

/* 4.3.1.1. Video Probe and Commit Controls */
struct uvc_streaming_control {
	__u16 bmHint;
	__u8  bFormatIndex;
	__u8  bFrameIndex;
	__u32 dwFrameInterval;
	__u16 wKeyFrameRate;
	__u16 wPFrameRate;
	__u16 wCompQuality;
	__u16 wCompWindowSize;
	__u16 wDelay;
	__u32 dwMaxVideoFrameSize;
	__u32 dwMaxPayloadTransferSize;
	__u32 dwClockFrequency;
	__u8  bmFramingInfo;
	__u8  bPreferedVersion;
	__u8  bMinVersion;
	__u8  bMaxVersion;
} __attribute__((__packed__));

/* Uncompressed Payload - 3.1.1. Uncompressed Video Format Descriptor */
struct uvc_format_uncompressed {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bFormatIndex;
	__u8  bNumFrameDescriptors;
	__u8  guidFormat[16];
	__u8  bBitsPerPixel;
	__u8  bDefaultFrameIndex;
	__u8  bAspectRatioX;
	__u8  bAspectRatioY;
	__u8  bmInterfaceFlags;
	__u8  bCopyProtect;
} __attribute__((__packed__));

#define UVC_DT_FORMAT_UNCOMPRESSED_SIZE			27

/* Uncompressed Payload - 3.1.2. Uncompressed Video Frame Descriptor */
struct uvc_frame_uncompressed {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bFrameIndex;
	__u8  bmCapabilities;
	__u16 wWidth;
	__u16 wHeight;
	__u32 dwMinBitRate;
	__u32 dwMaxBitRate;
	__u32 dwMaxVideoFrameBufferSize;
	__u32 dwDefaultFrameInterval;
	__u8  bFrameIntervalType;
	__u32 dwFrameInterval[];
} __attribute__((__packed__));

#define UVC_DT_FRAME_UNCOMPRESSED_SIZE(n)		(26+4*(n))

#define UVC_FRAME_UNCOMPRESSED(n) \
	uvc_frame_uncompressed_##n

#define DECLARE_UVC_FRAME_UNCOMPRESSED(n)		\
struct UVC_FRAME_UNCOMPRESSED(n) {			\
	__u8  bLength;					\
	__u8  bDescriptorType;				\
	__u8  bDescriptorSubType;			\
	__u8  bFrameIndex;				\
	__u8  bmCapabilities;				\
	__u16 wWidth;					\
	__u16 wHeight;					\
	__u32 dwMinBitRate;				\
	__u32 dwMaxBitRate;				\
	__u32 dwMaxVideoFrameBufferSize;		\
	__u32 dwDefaultFrameInterval;			\
	__u8  bFrameIntervalType;			\
	__u32 dwFrameInterval[n];			\
} __attribute__ ((packed))

/* MJPEG Payload - 3.1.1. MJPEG Video Format Descriptor */
struct uvc_format_mjpeg {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bFormatIndex;
	__u8  bNumFrameDescriptors;
	__u8  bmFlags;
	__u8  bDefaultFrameIndex;
	__u8  bAspectRatioX;
	__u8  bAspectRatioY;
	__u8  bmInterfaceFlags;
	__u8  bCopyProtect;
} __attribute__((__packed__));

#define UVC_DT_FORMAT_MJPEG_SIZE			11

/* MJPEG Payload - 3.1.2. MJPEG Video Frame Descriptor */
struct uvc_frame_mjpeg {
	__u8  bLength;
	__u8  bDescriptorType;
	__u8  bDescriptorSubType;
	__u8  bFrameIndex;
	__u8  bmCapabilities;
	__u16 wWidth;
	__u16 wHeight;
	__u32 dwMinBitRate;
	__u32 dwMaxBitRate;
	__u32 dwMaxVideoFrameBufferSize;
	__u32 dwDefaultFrameInterval;
	__u8  bFrameIntervalType;
	__u32 dwFrameInterval[];
} __attribute__((__packed__));

#define UVC_DT_FRAME_MJPEG_SIZE(n)			(26+4*(n))

#define UVC_FRAME_MJPEG(n) \
	uvc_frame_mjpeg_##n

#define DECLARE_UVC_FRAME_MJPEG(n)			\
struct UVC_FRAME_MJPEG(n) {				\
	__u8  bLength;					\
	__u8  bDescriptorType;				\
	__u8  bDescriptorSubType;			\
	__u8  bFrameIndex;				\
	__u8  bmCapabilities;				\
	__u16 wWidth;					\
	__u16 wHeight;					\
	__u32 dwMinBitRate;				\
	__u32 dwMaxBitRate;				\
	__u32 dwMaxVideoFrameBufferSize;		\
	__u32 dwDefaultFrameInterval;			\
	__u8  bFrameIntervalType;			\
	__u32 dwFrameInterval[n];			\
} __attribute__ ((packed))

#endif /* __LINUX_USB_VIDEO_H */