[linux-uvc-devel] XPS 9370 Webcam not working (0bda:58f4 UVC 1.5.0 bcdUSB 2.01 bcdDevice 72.79)

[dumpuvc <dum...@tz...>]

Hi,

The new Dell XPS 9370 ships with cameras that have the same identifiers 
with different firmware versions. The firmware is not upgradable. Both 
work in Windows, but only one version works on Linux.
This is a report for the version which does NOT work on Linux:

dmesg:
> [  832.645239] uvcvideo: Failed to query (129) UVC probe control : -75 
> (exp. 34).
> [  832.645247] uvcvideo: Failed to initialize the device (-5).


See also: https://bbs.archlinux.org/viewtopic.php?pid=1775860#p1775860 - 
it works in VMs with Windows installed as well.
Note that this is NOT the unknown video issue (i.e. it's not 
https://www.mail-archive.com/lin...@vg.../msg127992.html)
Note also that it seems no single quirk seems to help so far.

trace output of module loading (not quirk 0x100 is otherwise auto 
enabled though i manually passed it in the trace):

[ 1287.719470] usbcore: deregistering interface driver uvcvideo
[ 1382.531770] uvcvideo: Probing generic UVC device 5
[ 1382.532496] uvcvideo: Found format MJPEG.
[ 1382.532506] uvcvideo: - 640x480 (30.0 fps)
[ 1382.532509] uvcvideo: - 848x480 (30.0 fps)
[ 1382.532512] uvcvideo: - 960x540 (30.0 fps)
[ 1382.532514] uvcvideo: - 1280x720 (30.0 fps)
[ 1382.532517] uvcvideo: Found format YUV 4:2:2 (YUYV).
[ 1382.532519] uvcvideo: - 640x480 (30.0 fps)
[ 1382.532522] uvcvideo: - 640x360 (30.0 fps)
[ 1382.532525] uvcvideo: - 424x240 (30.0 fps)
[ 1382.532527] uvcvideo: - 320x240 (30.0 fps)
[ 1382.532530] uvcvideo: - 320x180 (30.0 fps)
[ 1382.532532] uvcvideo: - 160x120 (30.0 fps)
[ 1382.533186] uvcvideo: Found a Status endpoint (addr 83).
[ 1382.533191] uvcvideo: Found UVC 1.50 device Integrated_Webcam_HD 
(0bda:58f4)
[ 1382.533193] uvcvideo: Forcing device quirks to 0x100 by module 
parameter for testing purpose.
[ 1382.533194] uvcvideo: Please report required quirks to the 
linux-uvc-devel mailing list.
[ 1382.533205] uvcvideo: Added control 
00000000-0000-0000-0000-000000000001/2 to device 5 entity 1
[ 1382.533209] uvcvideo: Adding mapping 'Exposure, Auto' to control 
00000000-0000-0000-0000-000000000001/2.
[ 1382.533213] uvcvideo: Added control 
00000000-0000-0000-0000-000000000001/3 to device 5 entity 1
[ 1382.533218] uvcvideo: Adding mapping 'Exposure, Auto Priority' to 
control 00000000-0000-0000-0000-000000000001/3.
[ 1382.533225] uvcvideo: Added control 
00000000-0000-0000-0000-000000000001/4 to device 5 entity 1
[ 1382.533229] uvcvideo: Adding mapping 'Exposure (Absolute)' to control 
00000000-0000-0000-0000-000000000001/4.
[ 1382.533234] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/2 to device 5 entity 2
[ 1382.533238] uvcvideo: Adding mapping 'Brightness' to control 
00000000-0000-0000-0000-000000000101/2.
[ 1382.533242] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/3 to device 5 entity 2
[ 1382.533245] uvcvideo: Adding mapping 'Contrast' to control 
00000000-0000-0000-0000-000000000101/3.
[ 1382.533250] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/6 to device 5 entity 2
[ 1382.533254] uvcvideo: Adding mapping 'Hue' to control 
00000000-0000-0000-0000-000000000101/6.
[ 1382.533257] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/7 to device 5 entity 2
[ 1382.533261] uvcvideo: Adding mapping 'Saturation' to control 
00000000-0000-0000-0000-000000000101/7.
[ 1382.533264] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/8 to device 5 entity 2
[ 1382.533268] uvcvideo: Adding mapping 'Sharpness' to control 
00000000-0000-0000-0000-000000000101/8.
[ 1382.533272] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/9 to device 5 entity 2
[ 1382.533276] uvcvideo: Adding mapping 'Gamma' to control 
00000000-0000-0000-0000-000000000101/9.
[ 1382.533279] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/10 to device 5 entity 2
[ 1382.533285] uvcvideo: Adding mapping 'White Balance Temperature' to 
control 00000000-0000-0000-0000-000000000101/10.
[ 1382.533289] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/1 to device 5 entity 2
[ 1382.533295] uvcvideo: Adding mapping 'Backlight Compensation' to 
control 00000000-0000-0000-0000-000000000101/1.
[ 1382.533299] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/4 to device 5 entity 2
[ 1382.533302] uvcvideo: Adding mapping 'Gain' to control 
00000000-0000-0000-0000-000000000101/4.
[ 1382.533306] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/5 to device 5 entity 2
[ 1382.533309] uvcvideo: Adding mapping 'Power Line Frequency' to 
control 00000000-0000-0000-0000-000000000101/5.
[ 1382.533313] uvcvideo: Added control 
00000000-0000-0000-0000-000000000101/11 to device 5 entity 2
[ 1382.533317] uvcvideo: Adding mapping 'White Balance Temperature, 
Auto' to control 00000000-0000-0000-0000-000000000101/11.
[ 1382.533323] uvcvideo: Scanning UVC chain: OT 3 <- XU 6 <- XU 4 <- XU 
7 <- PU 2 <- IT 1
[ 1382.533339] uvcvideo: Found a valid video chain (1 -> 3).
[ 1382.533991] uvcvideo: Failed to query (129) UVC probe control : -75 
(exp. 34).
[ 1382.534002] uvcvideo: Failed to initialize the device (-5).
[ 1382.534052] uvcvideo: Probing generic UVC device 5
[ 1382.534686] uvcvideo: Unknown video format 
00000032-0002-0010-8000-00aa00389b71
[ 1382.534691] uvcvideo: Found format 00000032-0002-0010-8000-00aa003.
[ 1382.534694] uvcvideo: - 340x340 (60.0 fps)
[ 1382.534701] uvcvideo: Found a Status endpoint (addr 85).
[ 1382.534705] uvcvideo: Found UVC 1.50 device Integrated_Webcam_HD 
(0bda:58f4)
[ 1382.534706] uvcvideo: Forcing device quirks to 0x100 by module 
parameter for testing purpose.
[ 1382.534708] uvcvideo: Please report required quirks to the 
linux-uvc-devel mailing list.
[ 1382.534715] uvcvideo: Scanning UVC chain: OT 8 <- XU 10 <- XU 12 <- 
PU 9 <- IT 11
[ 1382.534727] uvcvideo: Found a valid video chain (11 -> 8).
[ 1382.535467] uvcvideo: Failed to query (129) UVC probe control : -75 
(exp. 34).
[ 1382.535475] uvcvideo: Failed to initialize the device (-5).
[ 1382.535545] usbcore: registered new interface driver uvcvideo
[ 1382.535547] USB Video Class driver (1.1.1)

lsusb output:

Bus 001 Device 002: ID 0bda:58f4 Realtek Semiconductor Corp.
Device Descriptor:
   bLength                18
   bDescriptorType         1
   bcdUSB               2.01
   bDeviceClass          239 Miscellaneous Device
   bDeviceSubClass         2
   bDeviceProtocol         1 Interface Association
   bMaxPacketSize0        64
   idVendor           0x0bda Realtek Semiconductor Corp.
   idProduct          0x58f4
   bcdDevice           72.79
   iManufacturer           3 CN0FFMHCLOG0081SBA16A01
   iProduct                1 Integrated_Webcam_HD
   iSerial                 2 200901010001
   bNumConfigurations      1
   Configuration Descriptor:
     bLength                 9
     bDescriptorType         2
     wTotalLength         1088
     bNumInterfaces          4
     bConfigurationValue     1
     iConfiguration          4 USB Camera
     bmAttributes         0x80
       (Bus Powered)
     MaxPower              500mA
     ** UNRECOGNIZED:  28 ff 42 49 53 54 00 01 06 07 10 00 00 00 00 00 01 
08 f4 01 02 09 f4 01 03 0a f4 01 04 0b f4 01 05 0c f4 01 06 0d e8 03
     Interface Association:
       bLength                 8
       bDescriptorType        11
       bFirstInterface         0
       bInterfaceCount         2
       bFunctionClass         14 Video
       bFunctionSubClass       3 Video Interface Collection
       bFunctionProtocol       0
       iFunction               5 Integrated Webcam
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        0
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      1 Video Control
       bInterfaceProtocol      1
       iInterface              5 Integrated Webcam
       VideoControl Interface Descriptor:
         bLength                13
         bDescriptorType        36
         bDescriptorSubtype      1 (HEADER)
         bcdUVC               1.50
         wTotalLength          138
         dwClockFrequency       15.000000MHz
         bInCollection           1
         baInterfaceNr( 0)       1
       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           0x0000000e
           Auto-Exposure Mode
           Auto-Exposure Priority
           Exposure Time (Absolute)
       VideoControl Interface Descriptor:
         bLength                13
         bDescriptorType        36
         bDescriptorSubtype      5 (PROCESSING_UNIT)
         bUnitID                 2
         bSourceID               1
         wMaxMultiplier          0
         bControlSize            3
         bmControls     0x0000177f
           Brightness
           Contrast
           Hue
           Saturation
           Sharpness
           Gamma
           White Balance Temperature
           Backlight Compensation
           Gain
           Power Line Frequency
           White Balance Temperature, Auto
         iProcessing             0
         bmVideoStandards     0x00
       VideoControl Interface Descriptor:
         bLength                 9
         bDescriptorType        36
         bDescriptorSubtype      3 (OUTPUT_TERMINAL)
         bTerminalID             3
         wTerminalType      0x0101 USB Streaming
         bAssocTerminal          0
         bSourceID               6
         iTerminal               0
       VideoControl Interface Descriptor:
         bLength                27
         bDescriptorType        36
         bDescriptorSubtype      6 (EXTENSION_UNIT)
         bUnitID                 4
         guidExtensionCode         {1229a78c-47b4-4094-b0ce-db07386fb938}
         bNumControl             2
         bNrPins                 1
         baSourceID( 0)          7
         bControlSize            2
         bmControls( 0)       0x00
         bmControls( 1)       0x06
         iExtension              0
       VideoControl Interface Descriptor:
         bLength                29
         bDescriptorType        36
         bDescriptorSubtype      6 (EXTENSION_UNIT)
         bUnitID                 7
         guidExtensionCode         {0fb885c3-68c2-4547-90f7-8f47579d95fc}
         bNumControl             0
         bNrPins                 1
         baSourceID( 0)          2
         bControlSize            4
         bmControls( 0)       0x0f
         bmControls( 1)       0x00
         bmControls( 2)       0x00
         bmControls( 3)       0x00
         iExtension              0
       VideoControl Interface Descriptor:
         bLength                29
         bDescriptorType        36
         bDescriptorSubtype      6 (EXTENSION_UNIT)
         bUnitID                 6
         guidExtensionCode         {26b8105a-0713-4870-979d-da79444bb68e}
         bNumControl             8
         bNrPins                 1
         baSourceID( 0)          4
         bControlSize            4
         bmControls( 0)       0x3f
         bmControls( 1)       0x00
         bmControls( 2)       0x14
         bmControls( 3)       0x00
         iExtension              7 Integrated_Webcam_HD
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x83  EP 3 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0010  1x 16 bytes
         bInterval               6
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       0
       bNumEndpoints           0
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       iInterface              0
       VideoStreaming Interface Descriptor:
         bLength                            15
         bDescriptorType                    36
         bDescriptorSubtype                  1 (INPUT_HEADER)
         bNumFormats                         2
         wTotalLength                      409
         bEndPointAddress                  129
         bmInfo                              0
         bTerminalLink                       3
         bStillCaptureMethod                 2
         bTriggerSupport                     1
         bTriggerUsage                       0
         bControlSize                        1
         bmaControls( 0)                     0
         bmaControls( 1)                     0
       VideoStreaming Interface Descriptor:
         bLength                            11
         bDescriptorType                    36
         bDescriptorSubtype                  6 (FORMAT_MJPEG)
         bFormatIndex                        1
         bNumFrameDescriptors                4
         bFlags                              1
           Fixed-size samples: Yes
         bDefaultFrameIndex                  1
         bAspectRatioX                       0
         bAspectRatioY                       0
         bmInterlaceFlags                 0x00
           Interlaced stream or variable: No
           Fields per frame: 1 fields
           Field 1 first: No
           Field pattern: Field 1 only
         bCopyProtect                        0
       VideoStreaming Interface Descriptor:
         bLength                            30
         bDescriptorType                    36
         bDescriptorSubtype                  7 (FRAME_MJPEG)
         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                  7 (FRAME_MJPEG)
         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                  7 (FRAME_MJPEG)
         bFrameIndex                         3
         bmCapabilities                   0x00
           Still image unsupported
         wWidth                            960
         wHeight                           540
         dwMinBitRate                248832000
         dwMaxBitRate                248832000
         dwMaxVideoFrameBufferSize     1036800
         dwDefaultFrameInterval         333333
         bFrameIntervalType                  1
         dwFrameInterval( 0)            333333
       VideoStreaming Interface Descriptor:
         bLength                            30
         bDescriptorType                    36
         bDescriptorSubtype                  7 (FRAME_MJPEG)
         bFrameIndex                         4
         bmCapabilities                   0x00
           Still image unsupported
         wWidth                           1280
         wHeight                           720
         dwMinBitRate                442368000
         dwMaxBitRate                442368000
         dwMaxVideoFrameBufferSize     1843200
         dwDefaultFrameInterval         333333
         bFrameIntervalType                  1
         dwFrameInterval( 0)            333333
       VideoStreaming Interface Descriptor:
         bLength                            22
         bDescriptorType                    36
         bDescriptorSubtype                  3 (STILL_IMAGE_FRAME)
         bEndpointAddress                    0
         bNumImageSizePatterns               4
         wWidth( 0)                       1280
         wHeight( 0)                       720
         wWidth( 1)                        960
         wHeight( 1)                       540
         wWidth( 2)                        848
         wHeight( 2)                       480
         wWidth( 3)                        640
         wHeight( 3)                       480
         bNumCompressionPatterns             0
       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))
       VideoStreaming Interface Descriptor:
         bLength                            27
         bDescriptorType                    36
         bDescriptorSubtype                  4 (FORMAT_UNCOMPRESSED)
         bFormatIndex                        2
         bNumFrameDescriptors                6
         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                            640
         wHeight                           360
         dwMinBitRate                110592000
         dwMaxBitRate                110592000
         dwMaxVideoFrameBufferSize      460800
         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                            424
         wHeight                           240
         dwMinBitRate                 48844800
         dwMaxBitRate                 48844800
         dwMaxVideoFrameBufferSize      203520
         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                            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                         5
         bmCapabilities                   0x00
           Still image unsupported
         wWidth                            320
         wHeight                           180
         dwMinBitRate                 27648000
         dwMaxBitRate                 27648000
         dwMaxVideoFrameBufferSize      115200
         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                            160
         wHeight                           120
         dwMinBitRate                  9216000
         dwMaxBitRate                  9216000
         dwMaxVideoFrameBufferSize       38400
         dwDefaultFrameInterval         333333
         bFrameIntervalType                  1
         dwFrameInterval( 0)            333333
       VideoStreaming Interface Descriptor:
         bLength                            22
         bDescriptorType                    36
         bDescriptorSubtype                  3 (STILL_IMAGE_FRAME)
         bEndpointAddress                    0
         bNumImageSizePatterns               4
         wWidth( 0)                       1280
         wHeight( 0)                       720
         wWidth( 1)                        960
         wHeight( 1)                       540
         wWidth( 2)                        848
         wHeight( 2)                       480
         wWidth( 3)                        640
         wHeight( 3)                       480
         bNumCompressionPatterns             0
       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      1
       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     0x0400  1x 1024 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       2
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       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     0x0a40  2x 576 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       3
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       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     0x0ba2  2x 930 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       4
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       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     0x0c00  2x 1024 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       5
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       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     0x12ea  3x 746 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       6
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       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     0x13aa  3x 938 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       7
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       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     0x1400  3x 1024 bytes
         bInterval               1
     Interface Association:
       bLength                 8
       bDescriptorType        11
       bFirstInterface         2
       bInterfaceCount         2
       bFunctionClass         14 Video
       bFunctionSubClass       3 Video Interface Collection
       bFunctionProtocol       0
       iFunction               6 Integrated Webcam
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        2
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      1 Video Control
       bInterfaceProtocol      1
       iInterface              5 Integrated Webcam
       VideoControl Interface Descriptor:
         bLength                13
         bDescriptorType        36
         bDescriptorSubtype      1 (HEADER)
         bcdUVC               1.50
         wTotalLength          105
         dwClockFrequency       15.000000MHz
         bInCollection           1
         baInterfaceNr( 0)       3
       VideoControl Interface Descriptor:
         bLength                18
         bDescriptorType        36
         bDescriptorSubtype      2 (INPUT_TERMINAL)
         bTerminalID            11
         wTerminalType      0x0201 Camera Sensor
         bAssocTerminal          0
         iTerminal               0
         wObjectiveFocalLengthMin      0
         wObjectiveFocalLengthMax      0
         wOcularFocalLength            0
         bControlSize                  3
         bmControls           0x00200000
           Region of Interest
       VideoControl Interface Descriptor:
         bLength                13
         bDescriptorType        36
         bDescriptorSubtype      5 (PROCESSING_UNIT)
         bUnitID                 9
         bSourceID              11
         wMaxMultiplier          0
         bControlSize            3
         bmControls     0x00000000
         iProcessing             0
         bmVideoStandards     0x00
       VideoControl Interface Descriptor:
         bLength                 9
         bDescriptorType        36
         bDescriptorSubtype      3 (OUTPUT_TERMINAL)
         bTerminalID             8
         wTerminalType      0x0101 USB Streaming
         bAssocTerminal          0
         bSourceID              10
         iTerminal               0
       VideoControl Interface Descriptor:
         bLength                25
         bDescriptorType        36
         bDescriptorSubtype      6 (EXTENSION_UNIT)
         bUnitID                12
         guidExtensionCode         {45b5da73-23c1-4a3d-a368-610f078c4397}
         bNumControl             0
         bNrPins                 1
         baSourceID( 0)          9
         bControlSize            0
         iExtension              0
       VideoControl Interface Descriptor:
         bLength                27
         bDescriptorType        36
         bDescriptorSubtype      6 (EXTENSION_UNIT)
         bUnitID                10
         guidExtensionCode         {1229a78c-47b4-4094-b0ce-db07386fb938}
         bNumControl             2
         bNrPins                 1
         baSourceID( 0)         12
         bControlSize            2
         bmControls( 0)       0x00
         bmControls( 1)       0x06
         iExtension              0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x85  EP 5 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0010  1x 16 bytes
         bInterval               6
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       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                       87
         bEndPointAddress                  130
         bmInfo                              0
         bTerminalLink                       8
         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                1
         guidFormat                            
{00000032-0002-0010-8000-00aa00389b71}
         bBitsPerPixel                       8
         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                            340
         wHeight                           340
         dwMinBitRate                 55488000
         dwMaxBitRate                 55488000
         dwMaxVideoFrameBufferSize      115600
         dwDefaultFrameInterval         166666
         bFrameIntervalType                  1
         dwFrameInterval( 0)            166666
       VideoStreaming Interface Descriptor:
         bLength                            10
         bDescriptorType                    36
         bDescriptorSubtype                  3 (STILL_IMAGE_FRAME)
         bEndpointAddress                    0
         bNumImageSizePatterns               1
         wWidth( 0)                        640
         wHeight( 0)                       480
         bNumCompressionPatterns             0
       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        3
       bAlternateSetting       1
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       iInterface              0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x0400  1x 1024 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       2
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       iInterface              0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x0a40  2x 576 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       3
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       iInterface              0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x0ba2  2x 930 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       4
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       iInterface              0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x0c00  2x 1024 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       5
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       iInterface              0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x12ea  3x 746 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       6
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       iInterface              0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x13aa  3x 938 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       7
       bNumEndpoints           1
       bInterfaceClass        14 Video
       bInterfaceSubClass      2 Video Streaming
       bInterfaceProtocol      1
       iInterface              0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x1400  3x 1024 bytes
         bInterval               1
Binary Object Store Descriptor:
   bLength                 5
   bDescriptorType        15
   wTotalLength           53
   bNumDeviceCaps          2
   Container ID Device Capability:
     bLength                20
     bDescriptorType        16
     bDevCapabilityType      4
     bReserved               0
     ContainerID             {14504e89-5eb6-5cfd-bfd9-7df5d7eebde2}
   Platform Device Capability:
     bLength                28
     bDescriptorType        16
     bDevCapabilityType      5
     bReserved               0
     PlatformCapabilityUUID    {d8dd60df-4589-4cc7-9cd2-659d9e648a9f}
     CapabilityData[0]    0x00
     CapabilityData[1]    0x00
     CapabilityData[2]    0x00
     CapabilityData[3]    0x0a
     CapabilityData[4]    0xc4
     CapabilityData[5]    0x02
     CapabilityData[6]    0x5f
     CapabilityData[7]    0x00
Device Status:     0x0000
   (Bus Powered)