LinuxLists.cc - [PATCH] USB: uvc: add support for the Microsoft Surface Pro 3 Cameras

2015-06-09 19:53:47

by Dennis Chen

[permalink] [raw]

Subject: [PATCH] USB: uvc: add support for the Microsoft Surface Pro 3 Cameras

2015-06-10 00:54:58

by Laurent Pinchart

[permalink] [raw]

Subject: Re: [PATCH] USB: uvc: add support for the Microsoft Surface Pro 3 Cameras

Hi Dennis,

-ENOPATCH ?

On Tuesday 09 June 2015 12:53:34 Dennis Chen wrote:
>

--
Regards,

Laurent Pinchart

2015-06-10 01:09:25

by Dennis Chen

[permalink] [raw]

Subject: Re: [PATCH] USB: uvc: add support for the Microsoft Surface Pro 3 Cameras

Add support for the Microsoft Surface Pro 3 Cameras.

Signed-off-by: Dennis Chen <[email protected]>
---
drivers/media/usb/uvc/uvc_driver.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 5970dd6..ec5a407 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2538,6 +2538,22 @@ static struct usb_device_id uvc_ids[] = {
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_FORCE_Y8 },
+ /*Microsoft Surface Pro 3 Front Camera*/
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x045e,
+ .idProduct = 0x07be,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 1 },
+ /* Microsoft Surface Pro 3 Rear */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x045e,
+ .idProduct = 0x07bf,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 1 },
/* Generic USB Video Class */
{ USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) },
{}
--
2.4.2

2015-06-10 01:19:00

by Laurent Pinchart

[permalink] [raw]

Subject: Re: [PATCH] USB: uvc: add support for the Microsoft Surface Pro 3 Cameras

Hi Dennis,

Thank you for the patch.

On Tuesday 09 June 2015 18:09:06 Dennis Chen wrote:
> Add support for the Microsoft Surface Pro 3 Cameras.

Is this needed ? Looking at the patch your cameras are UVC-compliant and
should thus be picked by the uvcvideo driver without any change to the code.

> Signed-off-by: Dennis Chen <[email protected]>
> ---
> drivers/media/usb/uvc/uvc_driver.c | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/drivers/media/usb/uvc/uvc_driver.c
> b/drivers/media/usb/uvc/uvc_driver.c index 5970dd6..ec5a407 100644
> --- a/drivers/media/usb/uvc/uvc_driver.c
> +++ b/drivers/media/usb/uvc/uvc_driver.c
> @@ -2538,6 +2538,22 @@ static struct usb_device_id uvc_ids[] = {
> .bInterfaceSubClass = 1,
> .bInterfaceProtocol = 0,
> .driver_info = UVC_QUIRK_FORCE_Y8 },
> + /*Microsoft Surface Pro 3 Front Camera*/
> + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
> + | USB_DEVICE_ID_MATCH_INT_INFO,
> + .idVendor = 0x045e,
> + .idProduct = 0x07be,
> + .bInterfaceClass = USB_CLASS_VIDEO,
> + .bInterfaceSubClass = 1,
> + .bInterfaceProtocol = 1 },
> + /* Microsoft Surface Pro 3 Rear */
> + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
> + | USB_DEVICE_ID_MATCH_INT_INFO,
> + .idVendor = 0x045e,
> + .idProduct = 0x07bf,
> + .bInterfaceClass = USB_CLASS_VIDEO,
> + .bInterfaceSubClass = 1,
> + .bInterfaceProtocol = 1 },
> /* Generic USB Video Class */
> { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) },
> {}

--
Regards,

Laurent Pinchart

2015-06-10 01:40:52

by Dennis Chen

[permalink] [raw]

Subject: Re: [PATCH] USB: uvc: add support for the Microsoft Surface Pro 3 Cameras

> Is this needed ? Looking at the patch your cameras are UVC-compliant
> and
> should thus be picked by the uvcvideo driver without any change to
> the code.

The cameras are UVC-compliant but are not recognized by the uvc driver.
The patch forces the uvc driver to pick up the camera if present.

2015-06-11 14:41:44

by Laurent Pinchart

[permalink] [raw]

Subject: Re: [PATCH] USB: uvc: add support for the Microsoft Surface Pro 3 Cameras

Hi Dennis,

On Tuesday 09 June 2015 18:40:41 Dennis Chen wrote:
> > Is this needed ? Looking at the patch your cameras are UVC-compliant
> > and should thus be picked by the uvcvideo driver without any change to
> > the code.
>
> The cameras are UVC-compliant but are not recognized by the uvc driver.
> The patch forces the uvc driver to pick up the camera if present.

Could you please send me the output of 'lsusb -v -d 045e:07be' and 'lsusb -v -
d 045e:07bf' (running as root if possible) ?

--
Regards,

Laurent Pinchart

2015-06-11 20:18:46

by Dennis Chen

[permalink] [raw]

Subject: Re: [PATCH] USB: uvc: add support for the Microsoft Surface Pro 3 Cameras

> Could you please send me the output of 'lsusb -v -d 045e:07be' and
> 'lsusb -v -
> d 045e:07bf' (running as root if possible) ?

Bus 001 Device 004: ID 045e:07bf Microsoft Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x045e Microsoft Corp.
idProduct 0x07bf
bcdDevice 21.52
iManufacturer 1 QCM
iProduct 2 Microsoft LifeCam Rear
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 1982
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 2 Microsoft LifeCam Rear
bmAttributes 0x80
(Bus Powered)
MaxPower 250mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 3
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 2 Microsoft LifeCam Rear
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 1
iInterface 2 Microsoft LifeCam Rear
VideoControl Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.50
wTotalLength 105
dwClockFrequency 150.000000MHz
bInCollection 2
baInterfaceNr( 0) 1
baInterfaceNr( 1) 2
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 0x00000a0e
Auto-Exposure Mode
Auto-Exposure Priority
Exposure Time (Absolute)
Zoom (Absolute)
PanTilt (Absolute)
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
bUnitID 2
bSourceID 1
wMaxMultiplier 0
bControlSize 3
bmControls 0x0000155b
Brightness
Contrast
Saturation
Sharpness
White Balance Temperature
Backlight Compensation
Power Line Frequency
White Balance Temperature, Auto
iProcessing 0
bmVideoStandards 0x 0
VideoControl Interface Descriptor:
bLength 29
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {29a787c9-d359-6945-8467-ff0849fc19e8}
bNumControl 22
bNrPins 1
baSourceID( 0) 2
bControlSize 4
bmControls( 0) 0xbf
bmControls( 1) 0xfb
bmControls( 2) 0xff
bmControls( 3) 0x00
iExtension 0
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 7 (unknown)
Invalid desc subtype: 0b 04 00 03 cd 3e 00 cd 3e 00
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 8
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 9
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 11
iTerminal 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 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 563
bEndPointAddress 130
bmInfo 0
bTerminalLink 8
bStillCaptureMethod 1
bTriggerSupport 0
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 27
bmaControls( 1) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 9
guidFormat {59555932-0000-1000-8000-00aa00389b71}
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 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 360
dwMinBitRate 55296000
dwMaxBitRate 110592000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 480
dwMinBitRate 73728000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x01
Still image supported
wWidth 480
wHeight 270
dwMinBitRate 31104000
dwMaxBitRate 62208000
dwMaxVideoFrameBufferSize 259200
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x01
Still image supported
wWidth 424
wHeight 240
dwMinBitRate 24422400
dwMaxBitRate 48844800
dwMaxVideoFrameBufferSize 203520
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x01
Still image supported
wWidth 320
wHeight 240
dwMinBitRate 18432000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 6
bmCapabilities 0x01
Still image supported
wWidth 320
wHeight 180
dwMinBitRate 13824000
dwMaxBitRate 27648000
dwMaxVideoFrameBufferSize 115200
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 7
bmCapabilities 0x01
Still image supported
wWidth 160
wHeight 120
dwMinBitRate 4608000
dwMaxBitRate 9216000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 8
bmCapabilities 0x01
Still image supported
wWidth 2592
wHeight 1944
dwMinBitRate 161243136
dwMaxBitRate 161243136
dwMaxVideoFrameBufferSize 10077696
dwDefaultFrameInterval 5000000
bFrameIntervalType 1
dwFrameInterval( 0) 5000000
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 9
bmCapabilities 0x01
Still image supported
wWidth 848
wHeight 480
dwMinBitRate 97689600
dwMaxBitRate 195379200
dwMaxVideoFrameBufferSize 814080
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
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 11
bDescriptorType 36
bDescriptorSubtype 6 (FORMAT_MJPEG)
bFormatIndex 2
bNumFrameDescriptors 6
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 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 1
bmCapabilities 0x01
Still image supported
wWidth 1920
wHeight 1080
dwMinBitRate 248832000
dwMaxBitRate 497664000
dwMaxVideoFrameBufferSize 4147200
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 2
bmCapabilities 0x01
Still image supported
wWidth 1280
wHeight 720
dwMinBitRate 110592000
dwMaxBitRate 221184000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 3
bmCapabilities 0x01
Still image supported
wWidth 960
wHeight 540
dwMinBitRate 62208000
dwMaxBitRate 124416000
dwMaxVideoFrameBufferSize 1036800
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 4
bmCapabilities 0x01
Still image supported
wWidth 2592
wHeight 1944
dwMinBitRate 604661760
dwMaxBitRate 604661760
dwMaxVideoFrameBufferSize 10077696
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 5
bmCapabilities 0x01
Still image supported
wWidth 2592
wHeight 1728
dwMinBitRate 537477120
dwMaxBitRate 537477120
dwMaxVideoFrameBufferSize 8957952
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 6
bmCapabilities 0x01
Still image supported
wWidth 1296
wHeight 864
dwMinBitRate 134369280
dwMaxBitRate 268738560
dwMaxVideoFrameBufferSize 2239488
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
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 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 1
iInterface 0
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 1210
bEndPointAddress 131
bmInfo 0
bTerminalLink 9
bStillCaptureMethod 1
bTriggerSupport 0
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 52
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 19 Invalid desc subtype: 01 16 02 03 00 43 03 00 0d f5 00 00 00 00 00 00 00 f5 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 01 80 07 38 04 01 00 01 00 40 42 29 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 b1 4f 01 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 02 80 07 38 04 01 00 01 00 0c 64 29 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 b1 4f 01 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 03 00 05 d0 02 01 00 01 00 40 42 20 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 c0 e1 e4 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 04 00 05 d0 02 01 00 01 00 0c 64 20 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 c0 e1 e4 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 05 c0 03 1c 02 01 00 01 00 40 42 1f 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 9f d5 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 06 c0 03 1c 02 01 00 01 00 0c 64 1f 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 9f d5 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 07 50 03 e0 01 01 00 01 00 40 42 1f 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 9f d5 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 08 50 03 e0 01 01 00 01 00 0c 64 1f 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 9f d5 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 09 80 02 e0 01 01 00 01 00 40 42 1e 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 96 98 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0a 80 02 e0 01 01 00 01 00 0c 64 1e 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 96 98 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0b 80 02 68 01 01 00 01 00 40 42 1e 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 96 98 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0c 80 02 68 01 01 00 01 00 0c 64 1e 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 96 98 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0d e0 01 0e 01 01 00 01 00 40 42 15 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 00 09 3d 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0e e0 01 0e 01 01 00 01 00 0c 64 15 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 00 09 3d 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0f a8 01 f0 00 01 00 01 00 40 42 15 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 00 09 3d 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 10 a8 01 f0 00 01 00 01 00 0c 64 15 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 00 09 3d 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 11 40 01 f0 00 01 00 01 00 40 42 14 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 12 40 01 f0 00 01 00 01 00 0c 64 14 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 13 40 01 b4 00 01 00 01 00 40 42 14 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 14 40 01 b4 00 01 00 01 00 0c 64 14 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 15 a0 00 78 00 01 00 01 00 40 42 14 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 16 a0 00 78 00 01 00 01 00 0c 64 14 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 1
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 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 2
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 1
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0100 1x 256 bytes
bInterval 1
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)

--------------------------------------------------

Bus 001 Device 003: ID 045e:07be Microsoft Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x045e Microsoft Corp.
idProduct 0x07be
bcdDevice 21.52
iManufacturer 1 QCM
iProduct 2 Microsoft LifeCam Front
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 1982
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 2 Microsoft LifeCam Front
bmAttributes 0x80
(Bus Powered)
MaxPower 250mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 3
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 2 Microsoft LifeCam Front
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 1
iInterface 2 Microsoft LifeCam Front
VideoControl Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.50
wTotalLength 105
dwClockFrequency 150.000000MHz
bInCollection 2
baInterfaceNr( 0) 1
baInterfaceNr( 1) 2
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 0x00000a0e
Auto-Exposure Mode
Auto-Exposure Priority
Exposure Time (Absolute)
Zoom (Absolute)
PanTilt (Absolute)
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
bUnitID 2
bSourceID 1
wMaxMultiplier 0
bControlSize 3
bmControls 0x0000155b
Brightness
Contrast
Saturation
Sharpness
White Balance Temperature
Backlight Compensation
Power Line Frequency
White Balance Temperature, Auto
iProcessing 0
bmVideoStandards 0x 0
VideoControl Interface Descriptor:
bLength 29
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {29a787c9-d359-6945-8467-ff0849fc19e8}
bNumControl 22
bNrPins 1
baSourceID( 0) 2
bControlSize 4
bmControls( 0) 0xbf
bmControls( 1) 0xfb
bmControls( 2) 0xff
bmControls( 3) 0x00
iExtension 0
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 7 (unknown)
Invalid desc subtype: 0b 04 00 03 cd 3e 00 cd 3e 00
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 8
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 9
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 11
iTerminal 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 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 563
bEndPointAddress 130
bmInfo 0
bTerminalLink 8
bStillCaptureMethod 1
bTriggerSupport 0
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 27
bmaControls( 1) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 9
guidFormat {59555932-0000-1000-8000-00aa00389b71}
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 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 360
dwMinBitRate 55296000
dwMaxBitRate 110592000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 480
dwMinBitRate 73728000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x01
Still image supported
wWidth 480
wHeight 270
dwMinBitRate 31104000
dwMaxBitRate 62208000
dwMaxVideoFrameBufferSize 259200
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x01
Still image supported
wWidth 424
wHeight 240
dwMinBitRate 24422400
dwMaxBitRate 48844800
dwMaxVideoFrameBufferSize 203520
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x01
Still image supported
wWidth 320
wHeight 240
dwMinBitRate 18432000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 6
bmCapabilities 0x01
Still image supported
wWidth 320
wHeight 180
dwMinBitRate 13824000
dwMaxBitRate 27648000
dwMaxVideoFrameBufferSize 115200
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 7
bmCapabilities 0x01
Still image supported
wWidth 160
wHeight 120
dwMinBitRate 4608000
dwMaxBitRate 9216000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 8
bmCapabilities 0x01
Still image supported
wWidth 2592
wHeight 1944
dwMinBitRate 161243136
dwMaxBitRate 161243136
dwMaxVideoFrameBufferSize 10077696
dwDefaultFrameInterval 5000000
bFrameIntervalType 1
dwFrameInterval( 0) 5000000
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 9
bmCapabilities 0x01
Still image supported
wWidth 848
wHeight 480
dwMinBitRate 97689600
dwMaxBitRate 195379200
dwMaxVideoFrameBufferSize 814080
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
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 11
bDescriptorType 36
bDescriptorSubtype 6 (FORMAT_MJPEG)
bFormatIndex 2
bNumFrameDescriptors 6
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 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 1
bmCapabilities 0x01
Still image supported
wWidth 1920
wHeight 1080
dwMinBitRate 248832000
dwMaxBitRate 497664000
dwMaxVideoFrameBufferSize 4147200
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 2
bmCapabilities 0x01
Still image supported
wWidth 1280
wHeight 720
dwMinBitRate 110592000
dwMaxBitRate 221184000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 3
bmCapabilities 0x01
Still image supported
wWidth 960
wHeight 540
dwMinBitRate 62208000
dwMaxBitRate 124416000
dwMaxVideoFrameBufferSize 1036800
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 4
bmCapabilities 0x01
Still image supported
wWidth 2592
wHeight 1944
dwMinBitRate 604661760
dwMaxBitRate 604661760
dwMaxVideoFrameBufferSize 10077696
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 5
bmCapabilities 0x01
Still image supported
wWidth 2592
wHeight 1728
dwMinBitRate 537477120
dwMaxBitRate 537477120
dwMaxVideoFrameBufferSize 8957952
dwDefaultFrameInterval 666666
bFrameIntervalType 1
dwFrameInterval( 0) 666666
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 6
bmCapabilities 0x01
Still image supported
wWidth 1296
wHeight 864
dwMinBitRate 134369280
dwMaxBitRate 268738560
dwMaxVideoFrameBufferSize 2239488
dwDefaultFrameInterval 333333
bFrameIntervalType 2
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 666666
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 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 1
iInterface 0
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 1210
bEndPointAddress 131
bmInfo 0
bTerminalLink 9
bStillCaptureMethod 1
bTriggerSupport 0
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 52
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 19 Invalid desc subtype: 01 16 02 03 00 43 03 00 0d f5 00 00 00 00 00 00 00 f5 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 01 80 07 38 04 01 00 01 00 40 42 29 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 b1 4f 01 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 02 80 07 38 04 01 00 01 00 0c 64 29 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 b1 4f 01 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 03 00 05 d0 02 01 00 01 00 40 42 20 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 c0 e1 e4 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 04 00 05 d0 02 01 00 01 00 0c 64 20 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 c0 e1 e4 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 05 c0 03 1c 02 01 00 01 00 40 42 1f 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 9f d5 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 06 c0 03 1c 02 01 00 01 00 0c 64 1f 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 9f d5 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 07 50 03 e0 01 01 00 01 00 40 42 1f 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 9f d5 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 08 50 03 e0 01 01 00 01 00 0c 64 1f 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 9f d5 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 09 80 02 e0 01 01 00 01 00 40 42 1e 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 96 98 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0a 80 02 e0 01 01 00 01 00 0c 64 1e 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 96 98 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0b 80 02 68 01 01 00 01 00 40 42 1e 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 96 98 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0c 80 02 68 01 01 00 01 00 0c 64 1e 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 96 98 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0d e0 01 0e 01 01 00 01 00 40 42 15 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 00 09 3d 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0e e0 01 0e 01 01 00 01 00 0c 64 15 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 00 09 3d 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 0f a8 01 f0 00 01 00 01 00 40 42 15 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 00 09 3d 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 10 a8 01 f0 00 01 00 01 00 0c 64 15 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 00 09 3d 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 11 40 01 f0 00 01 00 01 00 40 42 14 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 12 40 01 f0 00 01 00 01 00 0c 64 14 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 13 40 01 b4 00 01 00 01 00 40 42 14 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 14 40 01 b4 00 01 00 01 00 0c 64 14 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 15 a0 00 78 00 01 00 01 00 40 42 14 00 00 03 00 01 00 21 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
VideoStreaming Interface Descriptor:
bLength 52
bDescriptorType 36
bDescriptorSubtype 20 Invalid desc subtype: 16 a0 00 78 00 01 00 01 00 0c 64 14 00 00 03 00 01 00 2b 00 01 00 00 00 00 00 00 00 01 00 00 00 80 84 1e 00 15 16 05 00 02 15 16 05 00 2a 2c 0a 00
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 1
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 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 2
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 1
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0100 1x 256 bytes
bInterval 1
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)

2015-11-09 17:33:24

by Laurent Pinchart

[permalink] [raw]

Subject: Re: [PATCH] USB: uvc: add support for the Microsoft Surface Pro 3 Cameras

Hi Denis,

On Thursday 11 June 2015 13:13:30 Dennis Chen wrote:
> > Could you please send me the output of 'lsusb -v -d 045e:07be' and
> > 'lsusb -v -
> > d 045e:07bf' (running as root if possible) ?
>
> Bus 001 Device 004: ID 045e:07bf Microsoft Corp.
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 239 Miscellaneous Device
> bDeviceSubClass 2 ?
> bDeviceProtocol 1 Interface Association
> bMaxPacketSize0 64
> idVendor 0x045e Microsoft Corp.
> idProduct 0x07bf
> bcdDevice 21.52
> iManufacturer 1 QCM
> iProduct 2 Microsoft LifeCam Rear
> iSerial 0
> bNumConfigurations 1

[snip]

> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 1 Video Control
> bInterfaceProtocol 1
> iInterface 2 Microsoft LifeCam Rear

[snip]

I see where the problem comes from now. I had missed it before, but your
device sets the bInterfaceProtocol value to 1 as it's UVC 1.5 compliant, as
opposed to value 0 for UVC 1.1.

The uvcvideo driver doesn't support UVC 1.5 yet. It looks like your camera
supports the UVC 1.1 protocol as well, but that's not true of all UVC devices
in general. I expect that enabling detection of UVC 1.5 support in the driver
will result in issues with UVC 1.5 devices, but on the other hand those
devices are currently not supported at all. I'll thus submit a patch to enable
UVC 1.5 device detection, and we'll see how that goes. I'll CC you and would
appreciate if you could test the patch.

--
Regards,

Laurent Pinchart