Re: USB camera has "no usable YUV encodings"

Jan Stary Sat, 30 May 2020 13:48:56 -0700

On Aug 23 10:49:41, h...@stare.cz wrote:
> This is current/amd64 on a Dell Latitude E5570 (dmesg below).
> I am trying to use a USB camera (bought with a microscope,
> to display the miracles of paramecium life on the laptop).
> 
> https://www.bresser.de/en/Astronomy/Accessories/BRESSER-MikrOkular-Full-HD-eyepiece-camera.html
> 
> uvideo1 at uhub0 port 1 configuration 1 interface 0 "Alcor Micro
> MikrOkularHD" rev 2.00/0.00 addr 4
> video1 at uvideo1


For the archives, this is the USB camera ataching with UVIDEO_DEBUG.
In particular, the format seems to be MJPEG as Stuart suggested.

        Jan


May 30 14:00:21 mb32 /bsd: uvideo1 at uhub0 port 3 configuration 1 interface 0 
"Alcor Micro MikrOkularHD" rev 2.00/0.00 addr 3
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x02 (UDESC_CONFIG)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x02
May 30 14:00:21 mb32 /bsd: wTotalLength=311
May 30 14:00:21 mb32 /bsd: bNumInterface=0x02
May 30 14:00:21 mb32 /bsd: bConfigurationValue=0x01
May 30 14:00:21 mb32 /bsd: iConfiguration=0x00
May 30 14:00:21 mb32 /bsd: bmAttributes=0x80
May 30 14:00:21 mb32 /bsd: bMaxPower=0x64
May 30 14:00:21 mb32 /bsd: bMaxPower=0x64
May 30 14:00:21 mb32 /bsd: bLength=8
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x0b (UDESC_IFACE_ASSOC)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=8
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x0b
May 30 14:00:21 mb32 /bsd: bFirstInterface=0x00
May 30 14:00:21 mb32 /bsd: bInterfaceCount=2
May 30 14:00:21 mb32 /bsd: bFunctionClass=0x0e
May 30 14:00:21 mb32 /bsd: bFunctionSubClass=0x03
May 30 14:00:21 mb32 /bsd: bFunctionProtocol=0x00
May 30 14:00:21 mb32 /bsd: iFunction=0x04
May 30 14:00:21 mb32 /bsd: iFunction=0x04
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04 (UDESC_INTERFACE)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04
May 30 14:00:21 mb32 /bsd: bInterfaceNumber=0x00
May 30 14:00:21 mb32 /bsd: bAlternateSetting=0x00
May 30 14:00:21 mb32 /bsd: bNumEndpoints=1
May 30 14:00:21 mb32 /bsd: bInterfaceClass=0x0e
May 30 14:00:21 mb32 /bsd: bInterfaceSubClass=0x01
May 30 14:00:21 mb32 /bsd: bInterfaceProtocol=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x04
May 30 14:00:21 mb32 /bsd: iInterface=0x04
May 30 14:00:21 mb32 /bsd: bLength=13
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x01 (UDESCSUB_VC_HEADER)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=13
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x01
May 30 14:00:21 mb32 /bsd: bcdUVC=0x0100
May 30 14:00:21 mb32 /bsd: wTotalLength=79
May 30 14:00:21 mb32 /bsd: dwClockFrequency=30000000
May 30 14:00:21 mb32 /bsd: bInCollection=0x01
May 30 14:00:21 mb32 /bsd: bInCollection=0x01
May 30 14:00:21 mb32 /bsd: bLength=28
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x06 (UDESCSUB_VC_EXTENSION_UNIT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=28
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x06
May 30 14:00:21 mb32 /bsd: bUnitID=0x06
May 30 14:00:21 mb32 /bsd: guidExtensionCode=0xb0d0bb68a461834b90b7a6215f3c4f70
May 30 14:00:21 mb32 /bsd: bNumControls=0x18
May 30 14:00:21 mb32 /bsd: bNrInPins=0x01
May 30 14:00:21 mb32 /bsd: bNrInPins=0x01
May 30 14:00:21 mb32 /bsd: bLength=18
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x02 (UDESCSUB_VC_INPUT_TERMINAL)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=18
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x02
May 30 14:00:21 mb32 /bsd: bTerminalID=0x01
May 30 14:00:21 mb32 /bsd: wTerminalType=0x0201
May 30 14:00:21 mb32 /bsd: bAssocTerminal=0x00
May 30 14:00:21 mb32 /bsd: iTerminal=0x00
May 30 14:00:21 mb32 /bsd: iTerminal=0x00
May 30 14:00:21 mb32 /bsd: bLength=11
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x05 (UDESCSUB_VC_PROCESSING_UNIT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=11
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x05
May 30 14:00:21 mb32 /bsd: bUnitID=0x02
May 30 14:00:21 mb32 /bsd: bSourceID=0x01
May 30 14:00:21 mb32 /bsd: wMaxMultiplier=0
May 30 14:00:21 mb32 /bsd: bControlSize=2
May 30 14:00:21 mb32 /bsd: bmControls=0xff37
May 30 14:00:21 mb32 /bsd: iProcessing=0x00
May 30 14:00:21 mb32 /bsd: bmVideoStandards=0x09
May 30 14:00:21 mb32 /bsd: bmVideoStandards=0x09
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x03 (UDESCSUB_VC_OUTPUT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x03
May 30 14:00:21 mb32 /bsd: bTerminalID=0x03
May 30 14:00:21 mb32 /bsd: bAssocTerminal=0x00
May 30 14:00:21 mb32 /bsd: bSourceID=0x02
May 30 14:00:21 mb32 /bsd: iTerminal=0x00
May 30 14:00:21 mb32 /bsd: iTerminal=0x00
May 30 14:00:21 mb32 /bsd: bLength=7
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x05 (UDESC_ENDPOINT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=7
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x05
May 30 14:00:21 mb32 /bsd: bEndpointAddress=0x81 (IN)
May 30 14:00:21 mb32 /bsd: bmAttributes=0x03 (UE_INTERRUPT)
May 30 14:00:21 mb32 /bsd: wMaxPacketSize=16
May 30 14:00:21 mb32 /bsd: bInterval=0x07
May 30 14:00:21 mb32 /bsd: bInterval=0x07
May 30 14:00:21 mb32 /bsd: bLength=5
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x25 (UDESC_CS_ENDPOINT)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x03 (EP_INTERRUPT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=5
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x25
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x03
May 30 14:00:21 mb32 /bsd: wMaxTransferSize=16
May 30 14:00:21 mb32 /bsd: wMaxTransferSize=16
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04 (UDESC_INTERFACE)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04
May 30 14:00:21 mb32 /bsd: bInterfaceNumber=0x01
May 30 14:00:21 mb32 /bsd: bAlternateSetting=0x00
May 30 14:00:21 mb32 /bsd: bNumEndpoints=0
May 30 14:00:21 mb32 /bsd: bInterfaceClass=0x0e
May 30 14:00:21 mb32 /bsd: bInterfaceSubClass=0x02
May 30 14:00:21 mb32 /bsd: bInterfaceProtocol=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x00
May 30 14:00:21 mb32 /bsd: bLength=14
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x01 (UDESCSUB_VS_INPUT_HEADER)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=14
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x01
May 30 14:00:21 mb32 /bsd: bNumFormats=1
May 30 14:00:21 mb32 /bsd: wTotalLength=121
May 30 14:00:21 mb32 /bsd: bEndpointAddress=0x82
May 30 14:00:21 mb32 /bsd: bmInfo=0x00
May 30 14:00:21 mb32 /bsd: bTerminalLink=0x03
May 30 14:00:21 mb32 /bsd: bStillCaptureMethod=0x02
May 30 14:00:21 mb32 /bsd: bTriggerSupport=0x01
May 30 14:00:21 mb32 /bsd: bTriggerUsage=0x00
May 30 14:00:21 mb32 /bsd: bControlSize=1
May 30 14:00:21 mb32 /bsd: bControlSize=1
May 30 14:00:21 mb32 /bsd: bLength=11
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x06 (UDESCSUB_VS_FORMAT_MJPEG)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=11
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x06
May 30 14:00:21 mb32 /bsd: bFormatIndex=0x01
May 30 14:00:21 mb32 /bsd: bNumFrameDescriptors=0x02
May 30 14:00:21 mb32 /bsd: bmFlags=0x01
May 30 14:00:21 mb32 /bsd: bDefaultFrameIndex=0x01
May 30 14:00:21 mb32 /bsd: bAspectRatioX=0x00
May 30 14:00:21 mb32 /bsd: bAspectRatioY=0x00
May 30 14:00:21 mb32 /bsd: bmInterlaceFlags=0x00
May 30 14:00:21 mb32 /bsd: bCopyProtect=0x00
May 30 14:00:21 mb32 /bsd: bCopyProtect=0x00
May 30 14:00:21 mb32 /bsd: bLength=50
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x07 (UDESCSUB_VS_FRAME_MJPEG)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=50
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x07
May 30 14:00:21 mb32 /bsd: bFrameIndex=0x01
May 30 14:00:21 mb32 /bsd: bmCapabilities=0x00
May 30 14:00:21 mb32 /bsd: wWidth=1280
May 30 14:00:21 mb32 /bsd: wHeight=720
May 30 14:00:21 mb32 /bsd: dwMinBitRate=110592000
May 30 14:00:21 mb32 /bsd: dwMaxBitRate=663552000
May 30 14:00:21 mb32 /bsd: dwMaxVideoFrameBufferSize=2764800
May 30 14:00:21 mb32 /bsd: dwDefaultFrameInterval=333333
May 30 14:00:21 mb32 /bsd: bFrameIntervalType=0x06
May 30 14:00:21 mb32 /bsd: dwFrameInterval = 333333
May 30 14:00:21 mb32 /bsd: dwFrameInterval = 400000
May 30 14:00:21 mb32 /bsd: dwFrameInterval = 500000
May 30 14:00:21 mb32 /bsd: dwFrameInterval = 666666
May 30 14:00:21 mb32 /bsd: dwFrameInterval = 1000000
May 30 14:00:21 mb32 /bsd: dwFrameInterval = 2000000
May 30 14:00:21 mb32 /bsd: dwFrameInterval = 2000000
May 30 14:00:21 mb32 /bsd: bLength=30
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x07 (UDESCSUB_VS_FRAME_MJPEG)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=30
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x07
May 30 14:00:21 mb32 /bsd: bFrameIndex=0x02
May 30 14:00:21 mb32 /bsd: bmCapabilities=0x00
May 30 14:00:21 mb32 /bsd: wWidth=640
May 30 14:00:21 mb32 /bsd: wHeight=480
May 30 14:00:21 mb32 /bsd: dwMinBitRate=221184000
May 30 14:00:21 mb32 /bsd: dwMaxBitRate=221184000
May 30 14:00:21 mb32 /bsd: dwMaxVideoFrameBufferSize=921600
May 30 14:00:21 mb32 /bsd: dwDefaultFrameInterval=333333
May 30 14:00:21 mb32 /bsd: bFrameIntervalType=0x01
May 30 14:00:21 mb32 /bsd: dwFrameInterval = 333333
May 30 14:00:21 mb32 /bsd: dwFrameInterval = 333333
May 30 14:00:21 mb32 /bsd: bLength=10
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x03 (UDESCSUB_VC_OUTPUT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=10
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x03
May 30 14:00:21 mb32 /bsd: bTerminalID=0x00
May 30 14:00:21 mb32 /bsd: bAssocTerminal=0x05
May 30 14:00:21 mb32 /bsd: bSourceID=0xd0
May 30 14:00:21 mb32 /bsd: iTerminal=0x02
May 30 14:00:21 mb32 /bsd: iTerminal=0x02
May 30 14:00:21 mb32 /bsd: bLength=6
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24 (CS_INTERFACE)
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x0d (UDESCSUB_VS_COLORFORMAT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=6
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x24
May 30 14:00:21 mb32 /bsd: bDescriptorSubtype=0x0d
May 30 14:00:21 mb32 /bsd: bColorPrimaries=0x01
May 30 14:00:21 mb32 /bsd: bTransferCharacteristics=0x01
May 30 14:00:21 mb32 /bsd: bMatrixCoefficients=0x04
May 30 14:00:21 mb32 /bsd: bMatrixCoefficients=0x04
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04 (UDESC_INTERFACE)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04
May 30 14:00:21 mb32 /bsd: bInterfaceNumber=0x01
May 30 14:00:21 mb32 /bsd: bAlternateSetting=0x01
May 30 14:00:21 mb32 /bsd: bNumEndpoints=1
May 30 14:00:21 mb32 /bsd: bInterfaceClass=0x0e
May 30 14:00:21 mb32 /bsd: bInterfaceSubClass=0x02
May 30 14:00:21 mb32 /bsd: bInterfaceProtocol=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x00
May 30 14:00:21 mb32 /bsd: bLength=7
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x05 (UDESC_ENDPOINT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=7
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x05
May 30 14:00:21 mb32 /bsd: bEndpointAddress=0x82 (IN)
May 30 14:00:21 mb32 /bsd: bmAttributes=0x05 (UE_ISOCHRONOUS, UE_ISO_ASYNC)
May 30 14:00:21 mb32 /bsd: wMaxPacketSize=5120
May 30 14:00:21 mb32 /bsd: bInterval=0x01
May 30 14:00:21 mb32 /bsd: bInterval=0x01
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04 (UDESC_INTERFACE)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04
May 30 14:00:21 mb32 /bsd: bInterfaceNumber=0x01
May 30 14:00:21 mb32 /bsd: bAlternateSetting=0x02
May 30 14:00:21 mb32 /bsd: bNumEndpoints=1
May 30 14:00:21 mb32 /bsd: bInterfaceClass=0x0e
May 30 14:00:21 mb32 /bsd: bInterfaceSubClass=0x02
May 30 14:00:21 mb32 /bsd: bInterfaceProtocol=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x00
May 30 14:00:21 mb32 /bsd: bLength=7
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x05 (UDESC_ENDPOINT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=7
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x05
May 30 14:00:21 mb32 /bsd: bEndpointAddress=0x82 (IN)
May 30 14:00:21 mb32 /bsd: bmAttributes=0x05 (UE_ISOCHRONOUS, UE_ISO_ASYNC)
May 30 14:00:21 mb32 /bsd: wMaxPacketSize=3072
May 30 14:00:21 mb32 /bsd: bInterval=0x01
May 30 14:00:21 mb32 /bsd: bInterval=0x01
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04 (UDESC_INTERFACE)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04
May 30 14:00:21 mb32 /bsd: bInterfaceNumber=0x01
May 30 14:00:21 mb32 /bsd: bAlternateSetting=0x03
May 30 14:00:21 mb32 /bsd: bNumEndpoints=1
May 30 14:00:21 mb32 /bsd: bInterfaceClass=0x0e
May 30 14:00:21 mb32 /bsd: bInterfaceSubClass=0x02
May 30 14:00:21 mb32 /bsd: bInterfaceProtocol=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x00
May 30 14:00:21 mb32 /bsd: bLength=7
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x05 (UDESC_ENDPOINT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=7
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x05
May 30 14:00:21 mb32 /bsd: bEndpointAddress=0x82 (IN)
May 30 14:00:21 mb32 /bsd: bmAttributes=0x05 (UE_ISOCHRONOUS, UE_ISO_ASYNC)
May 30 14:00:21 mb32 /bsd: wMaxPacketSize=1024
May 30 14:00:21 mb32 /bsd: bInterval=0x01
May 30 14:00:21 mb32 /bsd: bInterval=0x01
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04 (UDESC_INTERFACE)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=9
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x04
May 30 14:00:21 mb32 /bsd: bInterfaceNumber=0x01
May 30 14:00:21 mb32 /bsd: bAlternateSetting=0x04
May 30 14:00:21 mb32 /bsd: bNumEndpoints=1
May 30 14:00:21 mb32 /bsd: bInterfaceClass=0x0e
May 30 14:00:21 mb32 /bsd: bInterfaceSubClass=0x02
May 30 14:00:21 mb32 /bsd: bInterfaceProtocol=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x00
May 30 14:00:21 mb32 /bsd: iInterface=0x00
May 30 14:00:21 mb32 /bsd: bLength=7
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x05 (UDESC_ENDPOINT)
May 30 14:00:21 mb32 /bsd: |
May 30 14:00:21 mb32 /bsd: bLength=7
May 30 14:00:21 mb32 /bsd: bDescriptorType=0x05
May 30 14:00:21 mb32 /bsd: bEndpointAddress=0x82 (IN)
May 30 14:00:21 mb32 /bsd: bmAttributes=0x05 (UE_ISOCHRONOUS, UE_ISO_ASYNC)
May 30 14:00:21 mb32 /bsd: wMaxPacketSize=512
May 30 14:00:21 mb32 /bsd: bInterval=0x01
May 30 14:00:21 mb32 /bsd: bInterval=0x01
May 30 14:00:21 mb32 /bsd: uvideo1: uvideo_vc_parse_desc
May 30 14:00:21 mb32 /bsd: uvideo1: number of total interfaces=2
May 30 14:00:21 mb32 /bsd: uvideo1: number of VS interfaces=1
May 30 14:00:21 mb32 /bsd: uvideo1: uvideo_vs_parse_desc_format
May 30 14:00:21 mb32 /bsd: uvideo1: number of total format descriptors=1
May 30 14:00:21 mb32 /bsd: uvideo1: uvideo_vs_parse_desc_frame
May 30 14:00:21 mb32 /bsd: uvideo1: VS interface 0, bInterfaceNumber=0x01, 
numalts=5
May 30 14:00:21 mb32 /bsd: uvideo1: bAlternateSetting=0x00, no endpoint 
descriptor
May 30 14:00:21 mb32 /bsd: uvideo1: bAlternateSetting=0x01, 
bEndpointAddress=0x82, wMaxPacketSize=5120
May 30 14:00:21 mb32 /bsd: uvideo1: bAlternateSetting=0x02, 
bEndpointAddress=0x82, wMaxPacketSize=3072
May 30 14:00:21 mb32 /bsd: uvideo1: bAlternateSetting=0x03, 
bEndpointAddress=0x82, wMaxPacketSize=1024
May 30 14:00:21 mb32 /bsd: uvideo1: bAlternateSetting=0x04, 
bEndpointAddress=0x82, wMaxPacketSize=512
May 30 14:00:21 mb32 /bsd: uvideo1: SET probe request successfully
May 30 14:00:21 mb32 /bsd: bmHint=0x01
May 30 14:00:21 mb32 /bsd: bFormatIndex=0x01
May 30 14:00:21 mb32 /bsd: bFrameIndex=0x01
May 30 14:00:21 mb32 /bsd: dwFrameInterval=333333 (100ns units)
May 30 14:00:21 mb32 /bsd: wKeyFrameRate=0
May 30 14:00:21 mb32 /bsd: wPFrameRate=0
May 30 14:00:21 mb32 /bsd: wCompQuality=0
May 30 14:00:21 mb32 /bsd: wCompWindowSize=0
May 30 14:00:21 mb32 /bsd: wDelay=0 (ms)
May 30 14:00:21 mb32 /bsd: dwMaxVideoFrameSize=0 (bytes)
May 30 14:00:21 mb32 /bsd: dwMaxPayloadTransferSize=0 (bytes)
May 30 14:00:21 mb32 /bsd: uvideo1: GET probe request successfully
May 30 14:00:21 mb32 /bsd: bmHint=0x01
May 30 14:00:21 mb32 /bsd: bFormatIndex=0x01
May 30 14:00:21 mb32 /bsd: bFrameIndex=0x01
May 30 14:00:21 mb32 /bsd: dwFrameInterval=333333 (100ns units)
May 30 14:00:21 mb32 /bsd: wKeyFrameRate=0
May 30 14:00:21 mb32 /bsd: wPFrameRate=0
May 30 14:00:21 mb32 /bsd: wCompQuality=0
May 30 14:00:21 mb32 /bsd: wCompWindowSize=0
May 30 14:00:21 mb32 /bsd: wDelay=0 (ms)
May 30 14:00:21 mb32 /bsd: dwMaxVideoFrameSize=2764800 (bytes)
May 30 14:00:21 mb32 /bsd: dwMaxPayloadTransferSize=3072 (bytes)
May 30 14:00:21 mb32 /bsd: uvideo_attach: doing video_attach_mi
May 30 14:00:21 mb32 /bsd: video0 at uvideo1

Re: USB camera has "no usable YUV encodings"

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