Hello all
Please accept my apologies if this has been previously addressed but I could not find anything relevant in the archives.
Device is recognised but Cheese fails along with the following:
v4l2-ctl --verbose -d /dev/video0 --set-fmt-video=width=640,height=480
VIDIOC_QUERYCAP: ok
VIDIOC_G_FMT: ok
VIDIOC_S_FMT: failed: Invalid argument
Attached are lsusb and dmesg logs with trace turned on.
Any assistance would be greatly appreciated.
Kind regards
v4l2-ctl --verbose -d /dev/video0 --all
Driver Info:
Driver name : uvcvideo
Card type : USB2.0 UVC HQ WebCam
Bus info : usb-0000:00:1d.7-6
Driver version : 5.9.11
Capabilities : 0x84a00001
Video Capture
Metadata Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
Width/Height : 640/480
Pixel Format : 'YUYV' (YUYV 4:2:2)
Field : None
Bytes per Line : 1280
Size Image : 0
Colorspace : sRGB
Transfer Function : Default (maps to sRGB)
YCbCr/HSV Encoding: Default (maps to ITU-R 601)
Quantization : Default (maps to Limited Range)
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 640, Height 480
Default : Left 0, Top 0, Width 640, Height 480
Pixel Aspect: 1/1
Selection Video Capture: crop_default, Left 0, Top 0, Width 640, Height 480, Flags:
Selection Video Capture: crop_bounds, Left 0, Top 0, Width 640, Height 480, Flags:
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: invalid (1/0)
Read buffers : 0
[12496.061711] usb 2-6: new high-speed USB device number 7 using ehci-pci
[12496.190548] usb 2-6: config 1 interface 2 altsetting 0 has a duplicate endpoint with address 0x81, skipping
[12496.191156] usb 2-6: New USB device found, idVendor=04e8, idProduct=205c, bcdDevice= 7.30
[12496.191161] usb 2-6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12496.191166] usb 2-6: Product: USB2.0 UVC HQ WebCam
[12496.191170] usb 2-6: Manufacturer: Alpha Imaging Tech. Corp.
[12496.200691] uvcvideo: Probing generic UVC device 6
[12496.200757] uvcvideo: Found format YUV 4:2:2 (YUYV).
[12496.200761] uvcvideo: - 640x480 (30.0 fps)
[12496.200763] uvcvideo: - 848x480 (30.0 fps)
[12496.200766] uvcvideo: - 320x240 (30.0 fps)
[12496.200768] uvcvideo: - 400x296 (30.0 fps)
[12496.200771] uvcvideo: - 384x216 (30.0 fps)
[12496.200773] uvcvideo: - 352x288 (30.0 fps)
[12496.200775] uvcvideo: - 1280x720 (10.0 fps)
[12496.200791] uvcvideo: Found a Status endpoint (addr 83).
[12496.200794] uvcvideo: Found UVC 1.00 device USB2.0 UVC HQ WebCam (04e8:205c)
[12496.200802] uvcvideo: Scanning UVC chain: OT 4 <- XU 2 <- XU 6 <- XU 5 <- PU 3 <- IT 1
[12496.200814] uvcvideo: Found a valid video chain (1 -> 4).
[12496.202746] input: USB2.0 UVC HQ WebCam as /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.0/input/input44
[12496.202912] uvcvideo: UVC device initialized.
[12496.284310] uvcvideo: uvc_v4l2_open
[12496.284364] uvcvideo: uvc_v4l2_release
[12498.643641] uvcvideo: Suspending interface 1
[12498.643646] uvcvideo: Suspending interface 0
[12556.008817] uvcvideo: Resuming interface 0
[12556.008820] uvcvideo: Resuming interface 1
[12558.515319] uvcvideo: Suspending interface 1
[12558.515322] uvcvideo: Suspending interface 0
[12566.961703] uvcvideo: Resuming interface 0
[12566.961705] uvcvideo: Resuming interface 1
[12569.457464] uvcvideo: Suspending interface 1
[12569.457466] uvcvideo: Suspending interface 0
[12648.432771] uvcvideo: uvc_v4l2_open
[12648.487897] uvcvideo: Resuming interface 0
[12648.487902] uvcvideo: Resuming interface 1
[12648.488306] uvcvideo: Control 0x00980900 not found.
[12648.488312] uvcvideo: Control 0x00980901 not found.
[12648.488317] uvcvideo: Control 0x00980902 not found.
[12648.488322] uvcvideo: Control 0x00980903 not found.
[12648.488326] uvcvideo: Control 0x00980904 not found.
[12648.488331] uvcvideo: Control 0x00980905 not found.
[12648.488336] uvcvideo: Control 0x00980906 not found.
[12648.488340] uvcvideo: Control 0x00980907 not found.
[12648.488345] uvcvideo: Control 0x00980908 not found.
[12648.488350] uvcvideo: Control 0x00980909 not found.
[12648.488354] uvcvideo: Control 0x0098090a not found.
[12648.488359] uvcvideo: Control 0x0098090b not found.
[12648.488364] uvcvideo: Control 0x0098090c not found.
[12648.488368] uvcvideo: Control 0x0098090d not found.
[12648.488373] uvcvideo: Control 0x0098090e not found.
[12648.488378] uvcvideo: Control 0x0098090f not found.
[12648.488383] uvcvideo: Control 0x00980910 not found.
[12648.488387] uvcvideo: Control 0x00980911 not found.
[12648.488456] uvcvideo: Control 0x00980912 not found.
[12648.488462] uvcvideo: Control 0x00980913 not found.
[12648.488467] uvcvideo: Control 0x00980914 not found.
[12648.488472] uvcvideo: Control 0x00980915 not found.
[12648.488477] uvcvideo: Control 0x00980916 not found.
[12648.488482] uvcvideo: Control 0x00980917 not found.
[12648.488487] uvcvideo: Control 0x00980918 not found.
[12648.488492] uvcvideo: Control 0x00980919 not found.
[12648.488497] uvcvideo: Control 0x0098091a not found.
[12648.488502] uvcvideo: Control 0x0098091b not found.
[12648.488506] uvcvideo: Control 0x0098091c not found.
[12648.488511] uvcvideo: Control 0x0098091d not found.
[12648.488516] uvcvideo: Control 0x0098091e not found.
[12648.488520] uvcvideo: Control 0x0098091f not found.
[12648.488525] uvcvideo: Control 0x00980920 not found.
[12648.488530] uvcvideo: Control 0x00980921 not found.
[12648.488534] uvcvideo: Control 0x00980922 not found.
[12648.488539] uvcvideo: Control 0x00980923 not found.
[12648.488544] uvcvideo: Control 0x00980924 not found.
[12648.488548] uvcvideo: Control 0x00980925 not found.
[12648.488558] uvcvideo: Control 0x00980926 not found.
[12648.488562] uvcvideo: Control 0x00980927 not found.
[12648.488567] uvcvideo: Control 0x00980928 not found.
[12648.488572] uvcvideo: Control 0x00980929 not found.
[12648.488576] uvcvideo: Control 0x0098092a not found.
[12648.488581] uvcvideo: Control 0x08000000 not found.
[12648.488915] uvcvideo: Control 0x00980900 not found.
[12648.488920] uvcvideo: Control 0x00980901 not found.
[12648.488925] uvcvideo: Control 0x00980902 not found.
[12648.488929] uvcvideo: Control 0x00980903 not found.
[12648.488934] uvcvideo: Control 0x00980904 not found.
[12648.488939] uvcvideo: Control 0x00980905 not found.
[12648.488943] uvcvideo: Control 0x00980906 not found.
[12648.488948] uvcvideo: Control 0x00980907 not found.
[12648.488952] uvcvideo: Control 0x00980908 not found.
[12648.488957] uvcvideo: Control 0x00980909 not found.
[12648.488962] uvcvideo: Control 0x0098090a not found.
[12648.488967] uvcvideo: Control 0x0098090b not found.
[12648.488971] uvcvideo: Control 0x0098090c not found.
[12648.488976] uvcvideo: Control 0x0098090d not found.
[12648.488980] uvcvideo: Control 0x0098090e not found.
[12648.488985] uvcvideo: Control 0x0098090f not found.
[12648.488990] uvcvideo: Control 0x00980910 not found.
[12648.488994] uvcvideo: Control 0x00980911 not found.
[12648.488999] uvcvideo: Control 0x00980912 not found.
[12648.489004] uvcvideo: Control 0x00980913 not found.
[12648.489008] uvcvideo: Control 0x00980914 not found.
[12648.489013] uvcvideo: Control 0x00980915 not found.
[12648.489018] uvcvideo: Control 0x00980916 not found.
[12648.489022] uvcvideo: Control 0x00980917 not found.
[12648.489027] uvcvideo: Control 0x00980918 not found.
[12648.489031] uvcvideo: Control 0x00980919 not found.
[12648.489036] uvcvideo: Control 0x0098091a not found.
[12648.489041] uvcvideo: Control 0x0098091b not found.
[12648.489045] uvcvideo: Control 0x0098091c not found.
[12648.489050] uvcvideo: Control 0x0098091d not found.
[12648.489055] uvcvideo: Control 0x0098091e not found.
[12648.489060] uvcvideo: Control 0x0098091f not found.
[12648.489064] uvcvideo: Control 0x00980920 not found.
[12648.489069] uvcvideo: Control 0x00980921 not found.
[12648.489074] uvcvideo: Control 0x00980922 not found.
[12648.489078] uvcvideo: Control 0x00980923 not found.
[12648.489086] uvcvideo: Control 0x00980924 not found.
[12648.489090] uvcvideo: Control 0x00980925 not found.
[12648.489095] uvcvideo: Control 0x00980926 not found.
[12648.489100] uvcvideo: Control 0x00980927 not found.
[12648.489104] uvcvideo: Control 0x00980928 not found.
[12648.489109] uvcvideo: Control 0x00980929 not found.
[12648.489114] uvcvideo: Control 0x0098092a not found.
[12648.489119] uvcvideo: Control 0x08000000 not found.
[12648.489135] uvcvideo: uvc_v4l2_release
[12650.947577] uvcvideo: Suspending interface 1
[12650.947582] uvcvideo: Suspending interface 0
[12675.532732] uvcvideo: uvc_v4l2_open
[12675.586724] uvcvideo: Resuming interface 0
[12675.586728] uvcvideo: Resuming interface 1
[12675.587121] uvcvideo: Control 0x00980900 not found.
[12675.587126] uvcvideo: Control 0x00980901 not found.
[12675.587132] uvcvideo: Control 0x00980902 not found.
[12675.587136] uvcvideo: Control 0x00980903 not found.
[12675.587141] uvcvideo: Control 0x00980904 not found.
[12675.587146] uvcvideo: Control 0x00980905 not found.
[12675.587151] uvcvideo: Control 0x00980906 not found.
[12675.587155] uvcvideo: Control 0x00980907 not found.
[12675.587160] uvcvideo: Control 0x00980908 not found.
[12675.587165] uvcvideo: Control 0x00980909 not found.
[12675.587170] uvcvideo: Control 0x0098090a not found.
[12675.587174] uvcvideo: Control 0x0098090b not found.
[12675.587179] uvcvideo: Control 0x0098090c not found.
[12675.587184] uvcvideo: Control 0x0098090d not found.
[12675.587189] uvcvideo: Control 0x0098090e not found.
[12675.587193] uvcvideo: Control 0x0098090f not found.
[12675.587198] uvcvideo: Control 0x00980910 not found.
[12675.587203] uvcvideo: Control 0x00980911 not found.
[12675.587208] uvcvideo: Control 0x00980912 not found.
[12675.587212] uvcvideo: Control 0x00980913 not found.
[12675.587217] uvcvideo: Control 0x00980914 not found.
[12675.587222] uvcvideo: Control 0x00980915 not found.
[12675.587227] uvcvideo: Control 0x00980916 not found.
[12675.587231] uvcvideo: Control 0x00980917 not found.
[12675.587236] uvcvideo: Control 0x00980918 not found.
[12675.587241] uvcvideo: Control 0x00980919 not found.
[12675.587246] uvcvideo: Control 0x0098091a not found.
[12675.587250] uvcvideo: Control 0x0098091b not found.
[12675.587255] uvcvideo: Control 0x0098091c not found.
[12675.587260] uvcvideo: Control 0x0098091d not found.
[12675.587265] uvcvideo: Control 0x0098091e not found.
[12675.587269] uvcvideo: Control 0x0098091f not found.
[12675.587274] uvcvideo: Control 0x00980920 not found.
[12675.587279] uvcvideo: Control 0x00980921 not found.
[12675.587284] uvcvideo: Control 0x00980922 not found.
[12675.587288] uvcvideo: Control 0x00980923 not found.
[12675.587293] uvcvideo: Control 0x00980924 not found.
[12675.587298] uvcvideo: Control 0x00980925 not found.
[12675.587303] uvcvideo: Control 0x00980926 not found.
[12675.587307] uvcvideo: Control 0x00980927 not found.
[12675.587312] uvcvideo: Control 0x00980928 not found.
[12675.587317] uvcvideo: Control 0x00980929 not found.
[12675.587322] uvcvideo: Control 0x0098092a not found.
[12675.587327] uvcvideo: Control 0x08000000 not found.
[12675.587359] uvcvideo: Trying format 0x56595559 (YUYV): 640x480.
[12675.587362] uvcvideo: Using default frame interval 33333.3 us (30.0 fps).
[12675.591929] uvcvideo: Unknown bFormatIndex 0
[12675.592028] uvcvideo: uvc_v4l2_release
[12678.093641] uvcvideo: Suspending interface 1
[12678.093644] uvcvideo: Suspending interface 0
[12765.651657] i915 0000:00:02.0: [drm] HPD interrupt storm detected on connector DP-2: switching from hotplug detection to polling
Bus 002 Device 007: ID 04e8:205c Samsung Electronics Co., Ltd USB2.0 UVC HQ WebCam
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x04e8 Samsung Electronics Co., Ltd
idProduct 0x205c
bcdDevice 7.30
iManufacturer 1 Alpha Imaging Tech. Corp.
iProduct 2 USB2.0 UVC HQ WebCam
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x01f7
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 0
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 0x0084
dwClockFrequency 144.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 4
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 2
iTerminal 0
VideoControl Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 2
guidExtensionCode {2c49d16a-32b8-4485-3ea8-643a152362f2}
bNumControl 6
bNrPins 1
baSourceID( 0) 6
bControlSize 2
bmControls( 0) 0x00
bmControls( 1) 0x00
iExtension 0
VideoControl Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 6
guidExtensionCode {23e49ed0-1178-4f31-ae52-d2fb8a8d3b48}
bNumControl 5
bNrPins 1
baSourceID( 0) 5
bControlSize 2
bmControls( 0) 0x1f
bmControls( 1) 0x00
iExtension 0
VideoControl Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 5
guidExtensionCode {b42153bd-35d6-45ca-b203-4e0149b301bc}
bNumControl 16
bNrPins 1
baSourceID( 0) 3
bControlSize 2
bmControls( 0) 0x00
bmControls( 1) 0x00
iExtension 0
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x00000000
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 3
bSourceID 1
wMaxMultiplier 0
bControlSize 2
bmControls 0x00000000
iProcessing 0
bmVideoStandards 0x00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 0x011d
bEndPointAddress 129
bmInfo 0
bTerminalLink 4
bStillCaptureMethod 2
bTriggerSupport 1
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 0
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 7
guidFormat {32595559-0000-0010-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 2 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 480
dwMinBitRate 147456000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 848
wHeight 480
dwMinBitRate 195379200
dwMaxBitRate 195379200
dwMaxVideoFrameBufferSize 814080
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 36864000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 400
wHeight 296
dwMinBitRate 56832000
dwMaxBitRate 56832000
dwMaxVideoFrameBufferSize 236800
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 384
wHeight 216
dwMinBitRate 39813120
dwMaxBitRate 39813120
dwMaxVideoFrameBufferSize 165888
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 6
bmCapabilities 0x00
Still image unsupported
wWidth 352
wHeight 288
dwMinBitRate 48660480
dwMaxBitRate 48660480
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 7
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 720
dwMinBitRate 147456000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 1000000
bFrameIntervalType 1
dwFrameInterval( 0) 1000000
VideoStreaming Interface Descriptor:
bLength 19
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 3
wWidth( 0) 640
wHeight( 0) 480
wWidth( 1) 320
wHeight( 1) 240
wWidth( 2) 160
wHeight( 2) 120
bNumCompressionPatterns 1
bCompression( 0) 3
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x13f8 3x 1016 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
