1/* 2 * USB Video Class definitions. 3 * 4 * Copyright (C) 2009 Laurent Pinchart <laurent.pinchart@skynet.be> 5 * 6 * This file holds USB constants and structures defined by the USB Device 7 * Class Definition for Video Devices. Unless otherwise stated, comments 8 * below reference relevant sections of the USB Video Class 1.1 specification 9 * available at 10 * 11 * http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1.zip 12 */ 13 14#ifndef __LINUX_USB_VIDEO_H 15#define __LINUX_USB_VIDEO_H 16 17#include <linux/types.h> 18 19/* -------------------------------------------------------------------------- 20 * UVC constants 21 */ 22 23/* A.2. Video Interface Subclass Codes */ 24#define UVC_SC_UNDEFINED 0x00 25#define UVC_SC_VIDEOCONTROL 0x01 26#define UVC_SC_VIDEOSTREAMING 0x02 27#define UVC_SC_VIDEO_INTERFACE_COLLECTION 0x03 28 29/* A.3. Video Interface Protocol Codes */ 30#define UVC_PC_PROTOCOL_UNDEFINED 0x00 31#define UVC_PC_PROTOCOL_15 0x01 32 33/* A.5. Video Class-Specific VC Interface Descriptor Subtypes */ 34#define UVC_VC_DESCRIPTOR_UNDEFINED 0x00 35#define UVC_VC_HEADER 0x01 36#define UVC_VC_INPUT_TERMINAL 0x02 37#define UVC_VC_OUTPUT_TERMINAL 0x03 38#define UVC_VC_SELECTOR_UNIT 0x04 39#define UVC_VC_PROCESSING_UNIT 0x05 40#define UVC_VC_EXTENSION_UNIT 0x06 41 42/* A.6. Video Class-Specific VS Interface Descriptor Subtypes */ 43#define UVC_VS_UNDEFINED 0x00 44#define UVC_VS_INPUT_HEADER 0x01 45#define UVC_VS_OUTPUT_HEADER 0x02 46#define UVC_VS_STILL_IMAGE_FRAME 0x03 47#define UVC_VS_FORMAT_UNCOMPRESSED 0x04 48#define UVC_VS_FRAME_UNCOMPRESSED 0x05 49#define UVC_VS_FORMAT_MJPEG 0x06 50#define UVC_VS_FRAME_MJPEG 0x07 51#define UVC_VS_FORMAT_MPEG2TS 0x0a 52#define UVC_VS_FORMAT_DV 0x0c 53#define UVC_VS_COLORFORMAT 0x0d 54#define UVC_VS_FORMAT_FRAME_BASED 0x10 55#define UVC_VS_FRAME_FRAME_BASED 0x11 56#define UVC_VS_FORMAT_STREAM_BASED 0x12 57 58/* A.7. Video Class-Specific Endpoint Descriptor Subtypes */ 59#define UVC_EP_UNDEFINED 0x00 60#define UVC_EP_GENERAL 0x01 61#define UVC_EP_ENDPOINT 0x02 62#define UVC_EP_INTERRUPT 0x03 63 64/* A.8. Video Class-Specific Request Codes */ 65#define UVC_RC_UNDEFINED 0x00 66#define UVC_SET_CUR 0x01 67#define UVC_GET_CUR 0x81 68#define UVC_GET_MIN 0x82 69#define UVC_GET_MAX 0x83 70#define UVC_GET_RES 0x84 71#define UVC_GET_LEN 0x85 72#define UVC_GET_INFO 0x86 73#define UVC_GET_DEF 0x87 74 75/* A.9.1. VideoControl Interface Control Selectors */ 76#define UVC_VC_CONTROL_UNDEFINED 0x00 77#define UVC_VC_VIDEO_POWER_MODE_CONTROL 0x01 78#define UVC_VC_REQUEST_ERROR_CODE_CONTROL 0x02 79 80/* A.9.2. Terminal Control Selectors */ 81#define UVC_TE_CONTROL_UNDEFINED 0x00 82 83/* A.9.3. Selector Unit Control Selectors */ 84#define UVC_SU_CONTROL_UNDEFINED 0x00 85#define UVC_SU_INPUT_SELECT_CONTROL 0x01 86 87/* A.9.4. Camera Terminal Control Selectors */ 88#define UVC_CT_CONTROL_UNDEFINED 0x00 89#define UVC_CT_SCANNING_MODE_CONTROL 0x01 90#define UVC_CT_AE_MODE_CONTROL 0x02 91#define UVC_CT_AE_PRIORITY_CONTROL 0x03 92#define UVC_CT_EXPOSURE_TIME_ABSOLUTE_CONTROL 0x04 93#define UVC_CT_EXPOSURE_TIME_RELATIVE_CONTROL 0x05 94#define UVC_CT_FOCUS_ABSOLUTE_CONTROL 0x06 95#define UVC_CT_FOCUS_RELATIVE_CONTROL 0x07 96#define UVC_CT_FOCUS_AUTO_CONTROL 0x08 97#define UVC_CT_IRIS_ABSOLUTE_CONTROL 0x09 98#define UVC_CT_IRIS_RELATIVE_CONTROL 0x0a 99#define UVC_CT_ZOOM_ABSOLUTE_CONTROL 0x0b 100#define UVC_CT_ZOOM_RELATIVE_CONTROL 0x0c 101#define UVC_CT_PANTILT_ABSOLUTE_CONTROL 0x0d 102#define UVC_CT_PANTILT_RELATIVE_CONTROL 0x0e 103#define UVC_CT_ROLL_ABSOLUTE_CONTROL 0x0f 104#define UVC_CT_ROLL_RELATIVE_CONTROL 0x10 105#define UVC_CT_PRIVACY_CONTROL 0x11 106 107/* A.9.5. Processing Unit Control Selectors */ 108#define UVC_PU_CONTROL_UNDEFINED 0x00 109#define UVC_PU_BACKLIGHT_COMPENSATION_CONTROL 0x01 110#define UVC_PU_BRIGHTNESS_CONTROL 0x02 111#define UVC_PU_CONTRAST_CONTROL 0x03 112#define UVC_PU_GAIN_CONTROL 0x04 113#define UVC_PU_POWER_LINE_FREQUENCY_CONTROL 0x05 114#define UVC_PU_HUE_CONTROL 0x06 115#define UVC_PU_SATURATION_CONTROL 0x07 116#define UVC_PU_SHARPNESS_CONTROL 0x08 117#define UVC_PU_GAMMA_CONTROL 0x09 118#define UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL 0x0a 119#define UVC_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL 0x0b 120#define UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL 0x0c 121#define UVC_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL 0x0d 122#define UVC_PU_DIGITAL_MULTIPLIER_CONTROL 0x0e 123#define UVC_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL 0x0f 124#define UVC_PU_HUE_AUTO_CONTROL 0x10 125#define UVC_PU_ANALOG_VIDEO_STANDARD_CONTROL 0x11 126#define UVC_PU_ANALOG_LOCK_STATUS_CONTROL 0x12 127 128/* A.9.7. VideoStreaming Interface Control Selectors */ 129#define UVC_VS_CONTROL_UNDEFINED 0x00 130#define UVC_VS_PROBE_CONTROL 0x01 131#define UVC_VS_COMMIT_CONTROL 0x02 132#define UVC_VS_STILL_PROBE_CONTROL 0x03 133#define UVC_VS_STILL_COMMIT_CONTROL 0x04 134#define UVC_VS_STILL_IMAGE_TRIGGER_CONTROL 0x05 135#define UVC_VS_STREAM_ERROR_CODE_CONTROL 0x06 136#define UVC_VS_GENERATE_KEY_FRAME_CONTROL 0x07 137#define UVC_VS_UPDATE_FRAME_SEGMENT_CONTROL 0x08 138#define UVC_VS_SYNC_DELAY_CONTROL 0x09 139 140/* B.1. USB Terminal Types */ 141#define UVC_TT_VENDOR_SPECIFIC 0x0100 142#define UVC_TT_STREAMING 0x0101 143 144/* B.2. Input Terminal Types */ 145#define UVC_ITT_VENDOR_SPECIFIC 0x0200 146#define UVC_ITT_CAMERA 0x0201 147#define UVC_ITT_MEDIA_TRANSPORT_INPUT 0x0202 148 149/* B.3. Output Terminal Types */ 150#define UVC_OTT_VENDOR_SPECIFIC 0x0300 151#define UVC_OTT_DISPLAY 0x0301 152#define UVC_OTT_MEDIA_TRANSPORT_OUTPUT 0x0302 153 154/* B.4. External Terminal Types */ 155#define UVC_EXTERNAL_VENDOR_SPECIFIC 0x0400 156#define UVC_COMPOSITE_CONNECTOR 0x0401 157#define UVC_SVIDEO_CONNECTOR 0x0402 158#define UVC_COMPONENT_CONNECTOR 0x0403 159 160/* 2.4.2.2. Status Packet Type */ 161#define UVC_STATUS_TYPE_CONTROL 1 162#define UVC_STATUS_TYPE_STREAMING 2 163 164/* 2.4.3.3. Payload Header Information */ 165#define UVC_STREAM_EOH (1 << 7) 166#define UVC_STREAM_ERR (1 << 6) 167#define UVC_STREAM_STI (1 << 5) 168#define UVC_STREAM_RES (1 << 4) 169#define UVC_STREAM_SCR (1 << 3) 170#define UVC_STREAM_PTS (1 << 2) 171#define UVC_STREAM_EOF (1 << 1) 172#define UVC_STREAM_FID (1 << 0) 173 174/* 4.1.2. Control Capabilities */ 175#define UVC_CONTROL_CAP_GET (1 << 0) 176#define UVC_CONTROL_CAP_SET (1 << 1) 177#define UVC_CONTROL_CAP_DISABLED (1 << 2) 178#define UVC_CONTROL_CAP_AUTOUPDATE (1 << 3) 179#define UVC_CONTROL_CAP_ASYNCHRONOUS (1 << 4) 180 181/* ------------------------------------------------------------------------ 182 * UVC structures 183 */ 184 185/* All UVC descriptors have these 3 fields at the beginning */ 186struct uvc_descriptor_header { 187 __u8 bLength; 188 __u8 bDescriptorType; 189 __u8 bDescriptorSubType; 190} __attribute__((packed)); 191 192/* 3.7.2. Video Control Interface Header Descriptor */ 193struct uvc_header_descriptor { 194 __u8 bLength; 195 __u8 bDescriptorType; 196 __u8 bDescriptorSubType; 197 __u16 bcdUVC; 198 __u16 wTotalLength; 199 __u32 dwClockFrequency; 200 __u8 bInCollection; 201 __u8 baInterfaceNr[]; 202} __attribute__((__packed__)); 203 204#define UVC_DT_HEADER_SIZE(n) (12+(n)) 205 206#define UVC_HEADER_DESCRIPTOR(n) \ 207 uvc_header_descriptor_##n 208 209#define DECLARE_UVC_HEADER_DESCRIPTOR(n) \ 210struct UVC_HEADER_DESCRIPTOR(n) { \ 211 __u8 bLength; \ 212 __u8 bDescriptorType; \ 213 __u8 bDescriptorSubType; \ 214 __u16 bcdUVC; \ 215 __u16 wTotalLength; \ 216 __u32 dwClockFrequency; \ 217 __u8 bInCollection; \ 218 __u8 baInterfaceNr[n]; \ 219} __attribute__ ((packed)) 220 221/* 3.7.2.1. Input Terminal Descriptor */ 222struct uvc_input_terminal_descriptor { 223 __u8 bLength; 224 __u8 bDescriptorType; 225 __u8 bDescriptorSubType; 226 __u8 bTerminalID; 227 __u16 wTerminalType; 228 __u8 bAssocTerminal; 229 __u8 iTerminal; 230} __attribute__((__packed__)); 231 232#define UVC_DT_INPUT_TERMINAL_SIZE 8 233 234/* 3.7.2.2. Output Terminal Descriptor */ 235struct uvc_output_terminal_descriptor { 236 __u8 bLength; 237 __u8 bDescriptorType; 238 __u8 bDescriptorSubType; 239 __u8 bTerminalID; 240 __u16 wTerminalType; 241 __u8 bAssocTerminal; 242 __u8 bSourceID; 243 __u8 iTerminal; 244} __attribute__((__packed__)); 245 246#define UVC_DT_OUTPUT_TERMINAL_SIZE 9 247 248/* 3.7.2.3. Camera Terminal Descriptor */ 249struct uvc_camera_terminal_descriptor { 250 __u8 bLength; 251 __u8 bDescriptorType; 252 __u8 bDescriptorSubType; 253 __u8 bTerminalID; 254 __u16 wTerminalType; 255 __u8 bAssocTerminal; 256 __u8 iTerminal; 257 __u16 wObjectiveFocalLengthMin; 258 __u16 wObjectiveFocalLengthMax; 259 __u16 wOcularFocalLength; 260 __u8 bControlSize; 261 __u8 bmControls[3]; 262} __attribute__((__packed__)); 263 264#define UVC_DT_CAMERA_TERMINAL_SIZE(n) (15+(n)) 265 266/* 3.7.2.4. Selector Unit Descriptor */ 267struct uvc_selector_unit_descriptor { 268 __u8 bLength; 269 __u8 bDescriptorType; 270 __u8 bDescriptorSubType; 271 __u8 bUnitID; 272 __u8 bNrInPins; 273 __u8 baSourceID[0]; 274 __u8 iSelector; 275} __attribute__((__packed__)); 276 277#define UVC_DT_SELECTOR_UNIT_SIZE(n) (6+(n)) 278 279#define UVC_SELECTOR_UNIT_DESCRIPTOR(n) \ 280 uvc_selector_unit_descriptor_##n 281 282#define DECLARE_UVC_SELECTOR_UNIT_DESCRIPTOR(n) \ 283struct UVC_SELECTOR_UNIT_DESCRIPTOR(n) { \ 284 __u8 bLength; \ 285 __u8 bDescriptorType; \ 286 __u8 bDescriptorSubType; \ 287 __u8 bUnitID; \ 288 __u8 bNrInPins; \ 289 __u8 baSourceID[n]; \ 290 __u8 iSelector; \ 291} __attribute__ ((packed)) 292 293/* 3.7.2.5. Processing Unit Descriptor */ 294struct uvc_processing_unit_descriptor { 295 __u8 bLength; 296 __u8 bDescriptorType; 297 __u8 bDescriptorSubType; 298 __u8 bUnitID; 299 __u8 bSourceID; 300 __u16 wMaxMultiplier; 301 __u8 bControlSize; 302 __u8 bmControls[2]; 303 __u8 iProcessing; 304} __attribute__((__packed__)); 305 306#define UVC_DT_PROCESSING_UNIT_SIZE(n) (9+(n)) 307 308/* 3.7.2.6. Extension Unit Descriptor */ 309struct uvc_extension_unit_descriptor { 310 __u8 bLength; 311 __u8 bDescriptorType; 312 __u8 bDescriptorSubType; 313 __u8 bUnitID; 314 __u8 guidExtensionCode[16]; 315 __u8 bNumControls; 316 __u8 bNrInPins; 317 __u8 baSourceID[0]; 318 __u8 bControlSize; 319 __u8 bmControls[0]; 320 __u8 iExtension; 321} __attribute__((__packed__)); 322 323#define UVC_DT_EXTENSION_UNIT_SIZE(p, n) (24+(p)+(n)) 324 325#define UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \ 326 uvc_extension_unit_descriptor_##p_##n 327 328#define DECLARE_UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \ 329struct UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) { \ 330 __u8 bLength; \ 331 __u8 bDescriptorType; \ 332 __u8 bDescriptorSubType; \ 333 __u8 bUnitID; \ 334 __u8 guidExtensionCode[16]; \ 335 __u8 bNumControls; \ 336 __u8 bNrInPins; \ 337 __u8 baSourceID[p]; \ 338 __u8 bControlSize; \ 339 __u8 bmControls[n]; \ 340 __u8 iExtension; \ 341} __attribute__ ((packed)) 342 343/* 3.8.2.2. Video Control Interrupt Endpoint Descriptor */ 344struct uvc_control_endpoint_descriptor { 345 __u8 bLength; 346 __u8 bDescriptorType; 347 __u8 bDescriptorSubType; 348 __u16 wMaxTransferSize; 349} __attribute__((__packed__)); 350 351#define UVC_DT_CONTROL_ENDPOINT_SIZE 5 352 353/* 3.9.2.1. Input Header Descriptor */ 354struct uvc_input_header_descriptor { 355 __u8 bLength; 356 __u8 bDescriptorType; 357 __u8 bDescriptorSubType; 358 __u8 bNumFormats; 359 __u16 wTotalLength; 360 __u8 bEndpointAddress; 361 __u8 bmInfo; 362 __u8 bTerminalLink; 363 __u8 bStillCaptureMethod; 364 __u8 bTriggerSupport; 365 __u8 bTriggerUsage; 366 __u8 bControlSize; 367 __u8 bmaControls[]; 368} __attribute__((__packed__)); 369 370#define UVC_DT_INPUT_HEADER_SIZE(n, p) (13+(n*p)) 371 372#define UVC_INPUT_HEADER_DESCRIPTOR(n, p) \ 373 uvc_input_header_descriptor_##n_##p 374 375#define DECLARE_UVC_INPUT_HEADER_DESCRIPTOR(n, p) \ 376struct UVC_INPUT_HEADER_DESCRIPTOR(n, p) { \ 377 __u8 bLength; \ 378 __u8 bDescriptorType; \ 379 __u8 bDescriptorSubType; \ 380 __u8 bNumFormats; \ 381 __u16 wTotalLength; \ 382 __u8 bEndpointAddress; \ 383 __u8 bmInfo; \ 384 __u8 bTerminalLink; \ 385 __u8 bStillCaptureMethod; \ 386 __u8 bTriggerSupport; \ 387 __u8 bTriggerUsage; \ 388 __u8 bControlSize; \ 389 __u8 bmaControls[p][n]; \ 390} __attribute__ ((packed)) 391 392/* 3.9.2.2. Output Header Descriptor */ 393struct uvc_output_header_descriptor { 394 __u8 bLength; 395 __u8 bDescriptorType; 396 __u8 bDescriptorSubType; 397 __u8 bNumFormats; 398 __u16 wTotalLength; 399 __u8 bEndpointAddress; 400 __u8 bTerminalLink; 401 __u8 bControlSize; 402 __u8 bmaControls[]; 403} __attribute__((__packed__)); 404 405#define UVC_DT_OUTPUT_HEADER_SIZE(n, p) (9+(n*p)) 406 407#define UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \ 408 uvc_output_header_descriptor_##n_##p 409 410#define DECLARE_UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \ 411struct UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) { \ 412 __u8 bLength; \ 413 __u8 bDescriptorType; \ 414 __u8 bDescriptorSubType; \ 415 __u8 bNumFormats; \ 416 __u16 wTotalLength; \ 417 __u8 bEndpointAddress; \ 418 __u8 bTerminalLink; \ 419 __u8 bControlSize; \ 420 __u8 bmaControls[p][n]; \ 421} __attribute__ ((packed)) 422 423/* 3.9.2.6. Color matching descriptor */ 424struct uvc_color_matching_descriptor { 425 __u8 bLength; 426 __u8 bDescriptorType; 427 __u8 bDescriptorSubType; 428 __u8 bColorPrimaries; 429 __u8 bTransferCharacteristics; 430 __u8 bMatrixCoefficients; 431} __attribute__((__packed__)); 432 433#define UVC_DT_COLOR_MATCHING_SIZE 6 434 435/* 4.3.1.1. Video Probe and Commit Controls */ 436struct uvc_streaming_control { 437 __u16 bmHint; 438 __u8 bFormatIndex; 439 __u8 bFrameIndex; 440 __u32 dwFrameInterval; 441 __u16 wKeyFrameRate; 442 __u16 wPFrameRate; 443 __u16 wCompQuality; 444 __u16 wCompWindowSize; 445 __u16 wDelay; 446 __u32 dwMaxVideoFrameSize; 447 __u32 dwMaxPayloadTransferSize; 448 __u32 dwClockFrequency; 449 __u8 bmFramingInfo; 450 __u8 bPreferedVersion; 451 __u8 bMinVersion; 452 __u8 bMaxVersion; 453} __attribute__((__packed__)); 454 455/* Uncompressed Payload - 3.1.1. Uncompressed Video Format Descriptor */ 456struct uvc_format_uncompressed { 457 __u8 bLength; 458 __u8 bDescriptorType; 459 __u8 bDescriptorSubType; 460 __u8 bFormatIndex; 461 __u8 bNumFrameDescriptors; 462 __u8 guidFormat[16]; 463 __u8 bBitsPerPixel; 464 __u8 bDefaultFrameIndex; 465 __u8 bAspectRatioX; 466 __u8 bAspectRatioY; 467 __u8 bmInterfaceFlags; 468 __u8 bCopyProtect; 469} __attribute__((__packed__)); 470 471#define UVC_DT_FORMAT_UNCOMPRESSED_SIZE 27 472 473/* Uncompressed Payload - 3.1.2. Uncompressed Video Frame Descriptor */ 474struct uvc_frame_uncompressed { 475 __u8 bLength; 476 __u8 bDescriptorType; 477 __u8 bDescriptorSubType; 478 __u8 bFrameIndex; 479 __u8 bmCapabilities; 480 __u16 wWidth; 481 __u16 wHeight; 482 __u32 dwMinBitRate; 483 __u32 dwMaxBitRate; 484 __u32 dwMaxVideoFrameBufferSize; 485 __u32 dwDefaultFrameInterval; 486 __u8 bFrameIntervalType; 487 __u32 dwFrameInterval[]; 488} __attribute__((__packed__)); 489 490#define UVC_DT_FRAME_UNCOMPRESSED_SIZE(n) (26+4*(n)) 491 492#define UVC_FRAME_UNCOMPRESSED(n) \ 493 uvc_frame_uncompressed_##n 494 495#define DECLARE_UVC_FRAME_UNCOMPRESSED(n) \ 496struct UVC_FRAME_UNCOMPRESSED(n) { \ 497 __u8 bLength; \ 498 __u8 bDescriptorType; \ 499 __u8 bDescriptorSubType; \ 500 __u8 bFrameIndex; \ 501 __u8 bmCapabilities; \ 502 __u16 wWidth; \ 503 __u16 wHeight; \ 504 __u32 dwMinBitRate; \ 505 __u32 dwMaxBitRate; \ 506 __u32 dwMaxVideoFrameBufferSize; \ 507 __u32 dwDefaultFrameInterval; \ 508 __u8 bFrameIntervalType; \ 509 __u32 dwFrameInterval[n]; \ 510} __attribute__ ((packed)) 511 512/* MJPEG Payload - 3.1.1. MJPEG Video Format Descriptor */ 513struct uvc_format_mjpeg { 514 __u8 bLength; 515 __u8 bDescriptorType; 516 __u8 bDescriptorSubType; 517 __u8 bFormatIndex; 518 __u8 bNumFrameDescriptors; 519 __u8 bmFlags; 520 __u8 bDefaultFrameIndex; 521 __u8 bAspectRatioX; 522 __u8 bAspectRatioY; 523 __u8 bmInterfaceFlags; 524 __u8 bCopyProtect; 525} __attribute__((__packed__)); 526 527#define UVC_DT_FORMAT_MJPEG_SIZE 11 528 529/* MJPEG Payload - 3.1.2. MJPEG Video Frame Descriptor */ 530struct uvc_frame_mjpeg { 531 __u8 bLength; 532 __u8 bDescriptorType; 533 __u8 bDescriptorSubType; 534 __u8 bFrameIndex; 535 __u8 bmCapabilities; 536 __u16 wWidth; 537 __u16 wHeight; 538 __u32 dwMinBitRate; 539 __u32 dwMaxBitRate; 540 __u32 dwMaxVideoFrameBufferSize; 541 __u32 dwDefaultFrameInterval; 542 __u8 bFrameIntervalType; 543 __u32 dwFrameInterval[]; 544} __attribute__((__packed__)); 545 546#define UVC_DT_FRAME_MJPEG_SIZE(n) (26+4*(n)) 547 548#define UVC_FRAME_MJPEG(n) \ 549 uvc_frame_mjpeg_##n 550 551#define DECLARE_UVC_FRAME_MJPEG(n) \ 552struct UVC_FRAME_MJPEG(n) { \ 553 __u8 bLength; \ 554 __u8 bDescriptorType; \ 555 __u8 bDescriptorSubType; \ 556 __u8 bFrameIndex; \ 557 __u8 bmCapabilities; \ 558 __u16 wWidth; \ 559 __u16 wHeight; \ 560 __u32 dwMinBitRate; \ 561 __u32 dwMaxBitRate; \ 562 __u32 dwMaxVideoFrameBufferSize; \ 563 __u32 dwDefaultFrameInterval; \ 564 __u8 bFrameIntervalType; \ 565 __u32 dwFrameInterval[n]; \ 566} __attribute__ ((packed)) 567 568#endif /* __LINUX_USB_VIDEO_H */ 569 570