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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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* USB Video Class definitions.

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* This file holds USB constants and structures defined by the USB Device

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* Class Definition for Video Devices. Unless otherwise stated, comments

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* below reference relevant sections of the USB Video Class 1.1 specification

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* available at

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* http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1.zip

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#ifndef __LINUX_USB_VIDEO_H

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#define __LINUX_USB_VIDEO_H

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#include <linux/types.h>

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/* --------------------------------------------------------------------------

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* UVC constants

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/* A.2. Video Interface Subclass Codes */

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#define UVC_SC_UNDEFINED 0x00

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#define UVC_SC_VIDEOCONTROL 0x01

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#define UVC_SC_VIDEOSTREAMING 0x02

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#define UVC_SC_VIDEO_INTERFACE_COLLECTION 0x03

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/* A.3. Video Interface Protocol Codes */

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#define UVC_PC_PROTOCOL_UNDEFINED 0x00

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#define UVC_PC_PROTOCOL_15 0x01

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/* A.5. Video Class-Specific VC Interface Descriptor Subtypes */

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#define UVC_VC_DESCRIPTOR_UNDEFINED 0x00

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#define UVC_VC_HEADER 0x01

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#define UVC_VC_INPUT_TERMINAL 0x02

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#define UVC_VC_OUTPUT_TERMINAL 0x03

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#define UVC_VC_SELECTOR_UNIT 0x04

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#define UVC_VC_PROCESSING_UNIT 0x05

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#define UVC_VC_EXTENSION_UNIT 0x06

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/* A.6. Video Class-Specific VS Interface Descriptor Subtypes */

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#define UVC_VS_UNDEFINED 0x00

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#define UVC_VS_INPUT_HEADER 0x01

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#define UVC_VS_OUTPUT_HEADER 0x02

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#define UVC_VS_STILL_IMAGE_FRAME 0x03

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#define UVC_VS_FORMAT_UNCOMPRESSED 0x04

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#define UVC_VS_FRAME_UNCOMPRESSED 0x05

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#define UVC_VS_FORMAT_MJPEG 0x06

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#define UVC_VS_FRAME_MJPEG 0x07

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#define UVC_VS_FORMAT_MPEG2TS 0x0a

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#define UVC_VS_FORMAT_DV 0x0c

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#define UVC_VS_COLORFORMAT 0x0d

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#define UVC_VS_FORMAT_FRAME_BASED 0x10

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#define UVC_VS_FRAME_FRAME_BASED 0x11

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#define UVC_VS_FORMAT_STREAM_BASED 0x12

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/* A.7. Video Class-Specific Endpoint Descriptor Subtypes */

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#define UVC_EP_UNDEFINED 0x00

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#define UVC_EP_GENERAL 0x01

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#define UVC_EP_ENDPOINT 0x02

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#define UVC_EP_INTERRUPT 0x03

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/* A.8. Video Class-Specific Request Codes */

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#define UVC_RC_UNDEFINED 0x00

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#define UVC_SET_CUR 0x01

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#define UVC_GET_CUR 0x81

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#define UVC_GET_MIN 0x82

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#define UVC_GET_MAX 0x83

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#define UVC_GET_RES 0x84

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#define UVC_GET_LEN 0x85

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#define UVC_GET_INFO 0x86

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#define UVC_GET_DEF 0x87

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/* A.9.1. VideoControl Interface Control Selectors */

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#define UVC_VC_CONTROL_UNDEFINED 0x00

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#define UVC_VC_VIDEO_POWER_MODE_CONTROL 0x01

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#define UVC_VC_REQUEST_ERROR_CODE_CONTROL 0x02

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/* A.9.2. Terminal Control Selectors */

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#define UVC_TE_CONTROL_UNDEFINED 0x00

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/* A.9.3. Selector Unit Control Selectors */

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#define UVC_SU_CONTROL_UNDEFINED 0x00

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#define UVC_SU_INPUT_SELECT_CONTROL 0x01

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/* A.9.4. Camera Terminal Control Selectors */

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#define UVC_CT_CONTROL_UNDEFINED 0x00

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#define UVC_CT_SCANNING_MODE_CONTROL 0x01

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#define UVC_CT_AE_MODE_CONTROL 0x02

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#define UVC_CT_AE_PRIORITY_CONTROL 0x03

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#define UVC_CT_EXPOSURE_TIME_ABSOLUTE_CONTROL 0x04

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#define UVC_CT_EXPOSURE_TIME_RELATIVE_CONTROL 0x05

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#define UVC_CT_FOCUS_ABSOLUTE_CONTROL 0x06

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#define UVC_CT_FOCUS_RELATIVE_CONTROL 0x07

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#define UVC_CT_FOCUS_AUTO_CONTROL 0x08

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#define UVC_CT_IRIS_ABSOLUTE_CONTROL 0x09

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#define UVC_CT_IRIS_RELATIVE_CONTROL 0x0a

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#define UVC_CT_ZOOM_ABSOLUTE_CONTROL 0x0b

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#define UVC_CT_ZOOM_RELATIVE_CONTROL 0x0c

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#define UVC_CT_PANTILT_ABSOLUTE_CONTROL 0x0d

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#define UVC_CT_PANTILT_RELATIVE_CONTROL 0x0e

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#define UVC_CT_ROLL_ABSOLUTE_CONTROL 0x0f

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#define UVC_CT_ROLL_RELATIVE_CONTROL 0x10

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#define UVC_CT_PRIVACY_CONTROL 0x11

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/* A.9.5. Processing Unit Control Selectors */

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#define UVC_PU_CONTROL_UNDEFINED 0x00

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#define UVC_PU_BACKLIGHT_COMPENSATION_CONTROL 0x01

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#define UVC_PU_BRIGHTNESS_CONTROL 0x02

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#define UVC_PU_CONTRAST_CONTROL 0x03

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#define UVC_PU_GAIN_CONTROL 0x04

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#define UVC_PU_POWER_LINE_FREQUENCY_CONTROL 0x05

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#define UVC_PU_HUE_CONTROL 0x06

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#define UVC_PU_SATURATION_CONTROL 0x07

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#define UVC_PU_SHARPNESS_CONTROL 0x08

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#define UVC_PU_GAMMA_CONTROL 0x09

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#define UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL 0x0a

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#define UVC_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL 0x0b

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#define UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL 0x0c

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#define UVC_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL 0x0d

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#define UVC_PU_DIGITAL_MULTIPLIER_CONTROL 0x0e

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#define UVC_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL 0x0f

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#define UVC_PU_HUE_AUTO_CONTROL 0x10

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#define UVC_PU_ANALOG_VIDEO_STANDARD_CONTROL 0x11

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#define UVC_PU_ANALOG_LOCK_STATUS_CONTROL 0x12

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/* A.9.7. VideoStreaming Interface Control Selectors */

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#define UVC_VS_CONTROL_UNDEFINED 0x00

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#define UVC_VS_PROBE_CONTROL 0x01

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#define UVC_VS_COMMIT_CONTROL 0x02

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#define UVC_VS_STILL_PROBE_CONTROL 0x03

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#define UVC_VS_STILL_COMMIT_CONTROL 0x04

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#define UVC_VS_STILL_IMAGE_TRIGGER_CONTROL 0x05

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#define UVC_VS_STREAM_ERROR_CODE_CONTROL 0x06

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#define UVC_VS_GENERATE_KEY_FRAME_CONTROL 0x07

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#define UVC_VS_UPDATE_FRAME_SEGMENT_CONTROL 0x08

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#define UVC_VS_SYNC_DELAY_CONTROL 0x09

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/* B.1. USB Terminal Types */

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#define UVC_TT_VENDOR_SPECIFIC 0x0100

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#define UVC_TT_STREAMING 0x0101

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/* B.2. Input Terminal Types */

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#define UVC_ITT_VENDOR_SPECIFIC 0x0200

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#define UVC_ITT_CAMERA 0x0201

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#define UVC_ITT_MEDIA_TRANSPORT_INPUT 0x0202

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/* B.3. Output Terminal Types */

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#define UVC_OTT_VENDOR_SPECIFIC 0x0300

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#define UVC_OTT_DISPLAY 0x0301

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#define UVC_OTT_MEDIA_TRANSPORT_OUTPUT 0x0302

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/* B.4. External Terminal Types */

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#define UVC_EXTERNAL_VENDOR_SPECIFIC 0x0400

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#define UVC_COMPOSITE_CONNECTOR 0x0401

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#define UVC_SVIDEO_CONNECTOR 0x0402

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#define UVC_COMPONENT_CONNECTOR 0x0403

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/* 2.4.2.2. Status Packet Type */

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#define UVC_STATUS_TYPE_CONTROL 1

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#define UVC_STATUS_TYPE_STREAMING 2

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/* 2.4.3.3. Payload Header Information */

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#define UVC_STREAM_EOH (1 << 7)

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#define UVC_STREAM_ERR (1 << 6)

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#define UVC_STREAM_STI (1 << 5)

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#define UVC_STREAM_RES (1 << 4)

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#define UVC_STREAM_SCR (1 << 3)

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#define UVC_STREAM_PTS (1 << 2)

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#define UVC_STREAM_EOF (1 << 1)

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#define UVC_STREAM_FID (1 << 0)

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/* 4.1.2. Control Capabilities */

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#define UVC_CONTROL_CAP_GET (1 << 0)

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#define UVC_CONTROL_CAP_SET (1 << 1)

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#define UVC_CONTROL_CAP_DISABLED (1 << 2)

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#define UVC_CONTROL_CAP_AUTOUPDATE (1 << 3)

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#define UVC_CONTROL_CAP_ASYNCHRONOUS (1 << 4)

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/* 3.9.2.6 Color Matching Descriptor Values */

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enum uvc_color_primaries_values {

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UVC_COLOR_PRIMARIES_UNSPECIFIED,

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UVC_COLOR_PRIMARIES_BT_709_SRGB,

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UVC_COLOR_PRIMARIES_BT_470_2_M,

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UVC_COLOR_PRIMARIES_BT_470_2_B_G,

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UVC_COLOR_PRIMARIES_SMPTE_170M,

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UVC_COLOR_PRIMARIES_SMPTE_240M,

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};

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enum uvc_transfer_characteristics_values {

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UVC_TRANSFER_CHARACTERISTICS_UNSPECIFIED,

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UVC_TRANSFER_CHARACTERISTICS_BT_709,

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UVC_TRANSFER_CHARACTERISTICS_BT_470_2_M,

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UVC_TRANSFER_CHARACTERISTICS_BT_470_2_B_G,

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UVC_TRANSFER_CHARACTERISTICS_SMPTE_170M,

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UVC_TRANSFER_CHARACTERISTICS_SMPTE_240M,

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UVC_TRANSFER_CHARACTERISTICS_LINEAR,

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UVC_TRANSFER_CHARACTERISTICS_SRGB,

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};

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enum uvc_matrix_coefficients {

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UVC_MATRIX_COEFFICIENTS_UNSPECIFIED,

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UVC_MATRIX_COEFFICIENTS_BT_709,

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UVC_MATRIX_COEFFICIENTS_FCC,

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UVC_MATRIX_COEFFICIENTS_BT_470_2_B_G,

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UVC_MATRIX_COEFFICIENTS_SMPTE_170M,

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UVC_MATRIX_COEFFICIENTS_SMPTE_240M,

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};

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/* ------------------------------------------------------------------------

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* UVC structures

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/* All UVC descriptors have these 3 fields at the beginning */

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struct uvc_descriptor_header {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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} __attribute__((packed));

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/* 3.7.2. Video Control Interface Header Descriptor */

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struct uvc_header_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__le16 bcdUVC;

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__le16 wTotalLength;

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__le32 dwClockFrequency;

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__u8 bInCollection;

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__u8 baInterfaceNr[];

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} __attribute__((__packed__));

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

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#define UVC_HEADER_DESCRIPTOR(n) \

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uvc_header_descriptor_##n

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#define DECLARE_UVC_HEADER_DESCRIPTOR(n) \

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struct UVC_HEADER_DESCRIPTOR(n) { \

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__u8 bLength; \

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__u8 bDescriptorType; \

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__u8 bDescriptorSubType; \

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__le16 bcdUVC; \

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__le16 wTotalLength; \

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__le32 dwClockFrequency; \

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__u8 bInCollection; \

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__u8 baInterfaceNr[n]; \

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} __attribute__ ((packed))

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/* 3.7.2.1. Input Terminal Descriptor */

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struct uvc_input_terminal_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__u8 bTerminalID;

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__le16 wTerminalType;

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__u8 bAssocTerminal;

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__u8 iTerminal;

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} __attribute__((__packed__));

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#define UVC_DT_INPUT_TERMINAL_SIZE 8

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/* 3.7.2.2. Output Terminal Descriptor */

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struct uvc_output_terminal_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__u8 bTerminalID;

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__le16 wTerminalType;

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__u8 bAssocTerminal;

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__u8 bSourceID;

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__u8 iTerminal;

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} __attribute__((__packed__));

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#define UVC_DT_OUTPUT_TERMINAL_SIZE 9

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/* 3.7.2.3. Camera Terminal Descriptor */

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struct uvc_camera_terminal_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__u8 bTerminalID;

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__le16 wTerminalType;

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__u8 bAssocTerminal;

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__u8 iTerminal;

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__le16 wObjectiveFocalLengthMin;

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__le16 wObjectiveFocalLengthMax;

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__le16 wOcularFocalLength;

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__u8 bControlSize;

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__u8 bmControls[3];

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} __attribute__((__packed__));

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

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/* 3.7.2.4. Selector Unit Descriptor */

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struct uvc_selector_unit_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__u8 bUnitID;

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__u8 bNrInPins;

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__u8 baSourceID[0];

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__u8 iSelector;

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} __attribute__((__packed__));

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

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#define UVC_SELECTOR_UNIT_DESCRIPTOR(n) \

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uvc_selector_unit_descriptor_##n

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#define DECLARE_UVC_SELECTOR_UNIT_DESCRIPTOR(n) \

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struct UVC_SELECTOR_UNIT_DESCRIPTOR(n) { \

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__u8 bLength; \

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__u8 bDescriptorType; \

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__u8 bDescriptorSubType; \

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__u8 bUnitID; \

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__u8 bNrInPins; \

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__u8 baSourceID[n]; \

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__u8 iSelector; \

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} __attribute__ ((packed))

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/* 3.7.2.5. Processing Unit Descriptor */

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struct uvc_processing_unit_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__u8 bUnitID;

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__u8 bSourceID;

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__le16 wMaxMultiplier;

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__u8 bControlSize;

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__u8 bmControls[2];

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__u8 iProcessing;

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__u8 bmVideoStandards;

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} __attribute__((__packed__));

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#define UVC_DT_PROCESSING_UNIT_SIZE(n) (10+(n))

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/* 3.7.2.6. Extension Unit Descriptor */

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struct uvc_extension_unit_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__u8 bUnitID;

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__u8 guidExtensionCode[16];

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__u8 bNumControls;

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__u8 bNrInPins;

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__u8 baSourceID[0];

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__u8 bControlSize;

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__u8 bmControls[0];

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__u8 iExtension;

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} __attribute__((__packed__));

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

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#define UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \

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uvc_extension_unit_descriptor_##p_##n

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#define DECLARE_UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \

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struct UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) { \

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__u8 bLength; \

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__u8 bDescriptorType; \

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__u8 bDescriptorSubType; \

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__u8 bUnitID; \

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__u8 guidExtensionCode[16]; \

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__u8 bNumControls; \

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__u8 bNrInPins; \

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__u8 baSourceID[p]; \

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__u8 bControlSize; \

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__u8 bmControls[n]; \

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__u8 iExtension; \

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} __attribute__ ((packed))

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/* 3.8.2.2. Video Control Interrupt Endpoint Descriptor */

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struct uvc_control_endpoint_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__le16 wMaxTransferSize;

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} __attribute__((__packed__));

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#define UVC_DT_CONTROL_ENDPOINT_SIZE 5

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/* 3.9.2.1. Input Header Descriptor */

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struct uvc_input_header_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__u8 bNumFormats;

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__le16 wTotalLength;

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__u8 bEndpointAddress;

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__u8 bmInfo;

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__u8 bTerminalLink;

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__u8 bStillCaptureMethod;

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__u8 bTriggerSupport;

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__u8 bTriggerUsage;

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__u8 bControlSize;

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__u8 bmaControls[];

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} __attribute__((__packed__));

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

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#define UVC_INPUT_HEADER_DESCRIPTOR(n, p) \

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uvc_input_header_descriptor_##n_##p

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#define DECLARE_UVC_INPUT_HEADER_DESCRIPTOR(n, p) \

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struct UVC_INPUT_HEADER_DESCRIPTOR(n, p) { \

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__u8 bLength; \

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__u8 bDescriptorType; \

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__u8 bDescriptorSubType; \

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__u8 bNumFormats; \

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__le16 wTotalLength; \

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__u8 bEndpointAddress; \

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__u8 bmInfo; \

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__u8 bTerminalLink; \

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__u8 bStillCaptureMethod; \

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__u8 bTriggerSupport; \

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__u8 bTriggerUsage; \

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__u8 bControlSize; \

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__u8 bmaControls[p][n]; \

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} __attribute__ ((packed))

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/* 3.9.2.2. Output Header Descriptor */

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struct uvc_output_header_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__u8 bNumFormats;

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__le16 wTotalLength;

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__u8 bEndpointAddress;

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__u8 bTerminalLink;

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__u8 bControlSize;

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__u8 bmaControls[];

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} __attribute__((__packed__));

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

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#define UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \

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uvc_output_header_descriptor_##n_##p

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#define DECLARE_UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \

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struct UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) { \

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__u8 bLength; \

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__u8 bDescriptorType; \

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__u8 bDescriptorSubType; \

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__u8 bNumFormats; \

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__le16 wTotalLength; \

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__u8 bEndpointAddress; \

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__u8 bTerminalLink; \

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__u8 bControlSize; \

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__u8 bmaControls[p][n]; \

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} __attribute__ ((packed))

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/* 3.9.2.6. Color matching descriptor */

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struct uvc_color_matching_descriptor {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__u8 bColorPrimaries;

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__u8 bTransferCharacteristics;

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__u8 bMatrixCoefficients;

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} __attribute__((__packed__));

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#define UVC_DT_COLOR_MATCHING_SIZE 6

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/* 4.3.1.1. Video Probe and Commit Controls */

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struct uvc_streaming_control {

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__u16 bmHint;

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__u8 bFormatIndex;

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__u8 bFrameIndex;

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__u32 dwFrameInterval;

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__u16 wKeyFrameRate;

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__u16 wPFrameRate;

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__u16 wCompQuality;

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__u16 wCompWindowSize;

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__u16 wDelay;

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__u32 dwMaxVideoFrameSize;

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__u32 dwMaxPayloadTransferSize;

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__u32 dwClockFrequency;

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__u8 bmFramingInfo;

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__u8 bPreferedVersion;

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__u8 bMinVersion;

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__u8 bMaxVersion;

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} __attribute__((__packed__));

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/* Uncompressed Payload - 3.1.1. Uncompressed Video Format Descriptor */

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struct uvc_format_uncompressed {

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__u8 bLength;

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__u8 bDescriptorType;

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__u8 bDescriptorSubType;

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__u8 bFormatIndex;

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__u8 bNumFrameDescriptors;

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__u8 guidFormat[16];

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__u8 bBitsPerPixel;

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__u8 bDefaultFrameIndex;

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__u8 bAspectRatioX;

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__u8 bAspectRatioY;

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__u8 bmInterfaceFlags;

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__u8 bCopyProtect;

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