On Sun, 2011-10-23 at 13:50 -0400, cheshirekow wrote:
> On 10/22/2011 03:16 AM, Alexey Fisher wrote:
> > Can you please attach the output of this command:
> > lsusb -vd 10f1:1a26 > lsusb_dump
> >
> Sure. The dump file is attached.
>
> Thanks!
>
Has anyone by chance managed to take a look at this lsusb dump?
To recap:
the HP Slate has two integrated we cams: One forward facing for video
calls, and one higher-resolution rear-facing for snapping photos. There
appears to be a single controller for both cameras. In linux, lsusb only
shows one webcam device. In windows, the device manager also shows only
one device for the webcam. However, in windows applications that use the
webcam (i.e. HP's webcam application, and in skype) I'm able to select
which one to use as an option. In linux, there is only one video
device, /dev/video0.
There does not appear to be any control available from uvcdynctrl or
within vlc to select which physical camera to use. I've tried setting
the resolution in vlc when I use the "open capture device" menu item. I
know that the forward facing camera is VGA so I tried specifying
640x480, but the result is that it shows the rear-camera stream at a low
resolution, rather then showing the forward-camera stream.
I'd appreciate any suggestions on how to get the forward-facing camera
to work in linux (for skype/google video calls). Also, if it is clear
that this facility is not available in UVC and that there is no way this
is possilble, that would also be useful information.
Thanks again
Bus 001 Device 006: ID 10f1:1a26 Importek
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x10f1 Importek
idProduct 0x1a26
bcdDevice 2.37
iManufacturer 1 Importek
iProduct 2 HP Webcam
iSerial 3 Dual Sensor
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 1001
bNumInterfaces 2
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 77
dwClockFrequency 30.000000MHz
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 26
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 2
guidExtensionCode {92423946-d10c-e34a-8783-3133f9eaaa3b}
bNumControl 3
bNrPins 1
baSourceID( 0) 1
bControlSize 1
bmControls( 0) 0xff
iExtension 0
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 3
bSourceID 2
wMaxMultiplier 0
bControlSize 2
bmControls 0x0000177f
Brightness
Contrast
Hue
Saturation
Sharpness
Gamma
White Balance Temperature
Backlight Compensation
Gain
Power Line Frequency
White Balance Temperature, Auto
iProcessing 0
bmVideoStandards 0x 9
None
SECAM - 625/50
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 4
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 3
iTerminal 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 16
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 15
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 2
wTotalLength 813
bEndPointAddress 129
bmInfo 0
bTerminalLink 4
bStillCaptureMethod 2
bTriggerSupport 1
bTriggerUsage 1
bControlSize 1
bmaControls( 0) 27
bmaControls( 1) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 8
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 42
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 480
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 400000
bFrameIntervalType 4
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 400001
dwFrameInterval( 2) 400002
dwFrameInterval( 3) 400003
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 1024
wHeight 768
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 1572864
dwDefaultFrameInterval 666666
bFrameIntervalType 4
dwFrameInterval( 0) 666666
dwFrameInterval( 1) 666667
dwFrameInterval( 2) 666668
dwFrameInterval( 3) 666669
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 1024
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 2621440
dwDefaultFrameInterval 4000000
bFrameIntervalType 4
dwFrameInterval( 0) 4000000
dwFrameInterval( 1) 4000001
dwFrameInterval( 2) 4000002
dwFrameInterval( 3) 4000003
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 400000
bFrameIntervalType 4
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 400001
dwFrameInterval( 2) 400002
dwFrameInterval( 3) 400003
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 160
wHeight 120
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 400000
bFrameIntervalType 4
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 400001
dwFrameInterval( 2) 400002
dwFrameInterval( 3) 400003
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 6
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 720
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 4000000
bFrameIntervalType 4
dwFrameInterval( 0) 4000000
dwFrameInterval( 1) 4000001
dwFrameInterval( 2) 4000002
dwFrameInterval( 3) 4000003
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 7
bmCapabilities 0x00
Still image unsupported
wWidth 1600
wHeight 1200
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 3840000
dwDefaultFrameInterval 4000000
bFrameIntervalType 4
dwFrameInterval( 0) 4000000
dwFrameInterval( 1) 4000001
dwFrameInterval( 2) 4000002
dwFrameInterval( 3) 4000003
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 8
bmCapabilities 0x00
Still image unsupported
wWidth 2048
wHeight 1536
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 6291456
dwDefaultFrameInterval 4000000
bFrameIntervalType 4
dwFrameInterval( 0) 4000000
dwFrameInterval( 1) 4000001
dwFrameInterval( 2) 4000002
dwFrameInterval( 3) 4000003
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 8
wWidth( 0) 640
wHeight( 0) 480
wWidth( 1) 1024
wHeight( 1) 768
wWidth( 2) 1280
wHeight( 2) 1024
wWidth( 3) 320
wHeight( 3) 240
wWidth( 4) 160
wHeight( 4) 120
wWidth( 5) 1280
wHeight( 5) 720
wWidth( 6) 1600
wHeight( 6) 1200
wWidth( 7) 2048
wHeight( 7) 1536
bNumCompressionPatterns 8
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 0 (Unspecified)
bTransferCharacteristics 0 (Unspecified)
bMatrixCoefficients 0 (Unspecified)
VideoStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 6 (FORMAT_MJPEG)
bFormatIndex 2
bNumFrameDescriptors 8
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 42
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 480
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 400000
bFrameIntervalType 4
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 400001
dwFrameInterval( 2) 400002
dwFrameInterval( 3) 400003
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 1024
wHeight 768
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 1572864
dwDefaultFrameInterval 400000
bFrameIntervalType 4
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 400001
dwFrameInterval( 2) 400002
dwFrameInterval( 3) 400003
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 1024
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 2621440
dwDefaultFrameInterval 666666
bFrameIntervalType 4
dwFrameInterval( 0) 666666
dwFrameInterval( 1) 666667
dwFrameInterval( 2) 666668
dwFrameInterval( 3) 666669
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 400000
bFrameIntervalType 4
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 400001
dwFrameInterval( 2) 400002
dwFrameInterval( 3) 400003
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 160
wHeight 120
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 400000
bFrameIntervalType 4
dwFrameInterval( 0) 400000
dwFrameInterval( 1) 400001
dwFrameInterval( 2) 400002
dwFrameInterval( 3) 400003
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 6
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 720
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 666666
bFrameIntervalType 4
dwFrameInterval( 0) 666666
dwFrameInterval( 1) 666667
dwFrameInterval( 2) 666668
dwFrameInterval( 3) 666669
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 7
bmCapabilities 0x00
Still image unsupported
wWidth 1600
wHeight 1200
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 3840000
dwDefaultFrameInterval 666666
bFrameIntervalType 4
dwFrameInterval( 0) 666666
dwFrameInterval( 1) 666667
dwFrameInterval( 2) 666668
dwFrameInterval( 3) 666669
VideoStreaming Interface Descriptor:
bLength 42
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 8
bmCapabilities 0x00
Still image unsupported
wWidth 2048
wHeight 1536
dwMinBitRate 912384
dwMaxBitRate 912384
dwMaxVideoFrameBufferSize 6291456
dwDefaultFrameInterval 666666
bFrameIntervalType 4
dwFrameInterval( 0) 666666
dwFrameInterval( 1) 666667
dwFrameInterval( 2) 666668
dwFrameInterval( 3) 666669
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 8
wWidth( 0) 640
wHeight( 0) 480
wWidth( 1) 1024
wHeight( 1) 768
wWidth( 2) 1280
wHeight( 2) 1024
wWidth( 3) 320
wHeight( 3) 240
wWidth( 4) 160
wHeight( 4) 120
wWidth( 5) 1280
wHeight( 5) 720
wWidth( 6) 1600
wHeight( 6) 1200
wWidth( 7) 2048
wHeight( 7) 1536
bNumCompressionPatterns 8
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 0 (Unspecified)
bTransferCharacteristics 0 (Unspecified)
bMatrixCoefficients 0 (Unspecified)
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 0x1400 3x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
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 0x1340 3x 832 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
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 0x1300 3x 768 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
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 0x12c0 3x 704 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)
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