Descriptor

---===>Device Information<===---
English product name: "Camera Tetris"

ConnectionStatus:
Current Config Value: 0x01 -> Device Bus Speed: Full
Device Address: 0x01
Open Pipes: 0
*!*ERROR: No open pipes!

===>Device Descriptor<===
bLength: 0x12
bDescriptorType: 0x01
bcdUSB: 0x0200
bDeviceClass: 0xEF -> This is a Multi-interface Function Code Device
bDeviceSubClass: 0x02 -> This is the Common Class Sub Class
bDeviceProtocol: 0x01 -> This is the Interface Association Descriptor protocol
bMaxPacketSize0: 0x40 = (64) Bytes
idVendor: 0x1985
idProduct: 0x1017
bcdDevice: 0x0100
iManufacturer: 0x01
English (United States) "lxyppc's Demo Project"
iProduct: 0x02
English (United States) "Camera Tetris"
iSerialNumber: 0x00
bNumConfigurations: 0x01

===>Configuration Descriptor<===
bLength: 0x09
bDescriptorType: 0x02
wTotalLength: 0x0090 -> Validated
bNumInterfaces: 0x02
bConfigurationValue: 0x01
iConfiguration: 0x00
bmAttributes: 0x80 -> Bus Powered
MaxPower: 0xFA = 500 mA

===>IAD Descriptor<===
bLength: 0x08
bDescriptorType: 0x0B
bFirstInterface: 0x00
bInterfaceCount: 0x02
bFunctionClass: 0x0E -> Video Interface Class
bFunctionSubClass: 0x03 -> Video Interface Collection
bFunctionProtocol: 0x00 -> PC_PROTOCOL_UNDEFINED protocol
iFunction: 0x02
English (United States) "Camera Tetris"

===>Interface Descriptor<===
bLength: 0x09
bDescriptorType: 0x04
bInterfaceNumber: 0x00
bAlternateSetting: 0x00
bNumEndpoints: 0x00
bInterfaceClass: 0x0E -> Video Interface Class
bInterfaceSubClass: 0x01 -> Video Control Interface SubClass
bInterfaceProtocol: 0x00
iInterface: 0x02
English (United States) "Camera Tetris"

===>Class-Specific Video Control Interface Header Descriptor<===
bLength: 0x0D
bDescriptorType: 0x24
bDescriptorSubtype: 0x01
bcdVDC: 0x0100
wTotalLength: 0x001E -> Validated
dwClockFrequency: 0x005B8D80 = (6000000) Hz
bInCollection:

0x01
baInterfaceNr[1]: 0x01

===>Video Control Input Terminal Descriptor<===
bLength: 0x08
bDescriptorType: 0x24
bDescriptorSubtype: 0x02
bTerminalID: 0x02
wTerminalType: 0x0401 = (COMPOSITE_CONNECTOR)
bAssocTerminal: 0x00
iTerminal: 0x00

===>Video Control Output Terminal Descriptor<===
bLength: 0x09
bDescriptorType: 0x24
bDescriptorSubtype: 0x03
bTerminalID: 0x03
wTerminalType: 0x0101 = (TT_STREAMING)
bAssocTerminal: 0x00
bSourceID: 0x02
iTerminal: 0x00

===>Interface Descriptor<===
bLength: 0x09
bDescriptorType: 0x04
bInterfaceNumber: 0x01
bAlternateSetting: 0x00
bNumEndpoints: 0x00
bInterfaceClass: 0x0E -> Video Interface Class
bInterfaceSubClass: 0x02 -> Video Streaming Interface SubClass
bInterfaceProtocol: 0x00
iInterface: 0x00

===>Video Class-Specific VS Video Input Header Descriptor<===
bLength: 0x0E
bDescriptorType: 0x24
bDescriptorSubtype: 0x01
bNumFormats: 0x01
wTotalLength: 0x003F -> Validated
bEndpointAddress: 0x81 -> Direction: IN - EndpointID: 1
bmInfo: 0x00 -> Dynamic Format Change not Supported
bTerminalLink: 0x03
bStillCaptureMethod: 0x00 -> Still Capture Method 0
bTriggerSupport: 0x00 -> No Hardware Triggering Support
bTriggerUsage: 0x00
bControlSize: 0x01
Video Payload Format 1 0x00
D00 = 0 no - Key Frame Rate
D01 = 0 no - P Frame Rate
D02 = 0 no - Compression Quality
D03 = 0 no - Compression Window Size
D04 = 0 no - Generate Key Frame
D05 = 0 no - Update Frame Segment
D06 = 0 no - Reserved
D07 = 0 no - Reserved

===>Video Streaming MJPEG Format Type Descriptor<===
bLength: 0x0B
bDescriptorType: 0x24
bDescriptorSubtype: 0x06
bFormatIndex: 0x01
bNumFrameDescriptors: 0x01
bmFlags: 0x01 -> Sample Size is Fixed
bDefaultFrameIndex: 0x01
bAspectRatioX: 0x00
bAspectRatioY: 0x00
bmInterlaceFlags: 0x00
D00 = 0 non-Interlaced stream or variable
D01 = 0 2 fields per frame
D02 = 0 Field 1 not first
D03

= 0 Reserved
D4..5 = 0 Field patterns -> Field 1 only
D6..7 = 0 Display Mode -> Bob only
bCopyProtect: 0x00 -> Duplication Unrestricted

===>Video Streaming MJPEG Frame Type Descriptor<===
bLength: 0x26
bDescriptorType: 0x24
bDescriptorSubtype: 0x07
bFrameIndex: 0x01
bmCapabilities: 0x02
wWidth: 0x0130
wHeight: 0x0170
dwMinBitRate: 0x00032000
dwMaxBitRate: 0x00064000
dwMaxVideoFrameBufferSize: 0x00014000
dwDefaultFrameInterval: 0x000F4240
bFrameIntervalType: 0x00
===>Additional Continuous Frame Type Data
dwMinFrameInterval: 0x000F4240
dwMaxFrameInterval: 0x000F4240
dwFrameIntervalStep: 0x00000000
*!*CAUTION: dwFrameIntervalStep equals zero, consider using discrete frames

===>Interface Descriptor<===
bLength: 0x09
bDescriptorType: 0x04
bInterfaceNumber: 0x01
bAlternateSetting: 0x01
bNumEndpoints: 0x01
bInterfaceClass: 0x0E -> Video Interface Class
bInterfaceSubClass: 0x02 -> Video Streaming Interface SubClass
bInterfaceProtocol: 0x00
iInterface: 0x00

===>Endpoint Descriptor<===
bLength: 0x07
bDescriptorType: 0x05
bEndpointAddress: 0x81 -> Direction: IN - EndpointID: 1
bmAttributes: 0x05 -> Isochronous Transfer Type
Synchronization Type = Asynchronous
Bulk Transfer Type
wMaxPacketSize: 0x0102 = 0x102 bytes
bInterval: 0x01