Hello, I use vanilla kernel-2.6.29.2 and own DEF-299A webcam. Outputs of udevadm info and lsusb are attached. The problem is in this device initialization by the driver (uvcvideo). In ~80% of cases it fails with the following error: May 09 12:45:41 [kernel] usb 1-6: new high speed USB device using ehci_hcd and address 58 May 09 12:45:41 [kernel] usb 1-6: configuration #1 chosen from 1 choice May 09 12:45:41 [kernel] uvcvideo: Found UVC 1.00 device DEF-299A Camera (1871:0603) May 09 12:45:42 [kernel] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. May 09 12:45:43 [kernel] uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26). May 09 12:45:43 [kernel] uvcvideo: Failed to initialize the device (-5). May 09 12:45:58 [kernel] usb 1-6: USB disconnect, address 58 So I need to reattach this device again and again. After successfull attachment it looks like: May 09 12:46:15 [kernel] usb 1-5: new high speed USB device using ehci_hcd and address 61 May 09 12:46:15 [kernel] usb 1-5: configuration #1 chosen from 1 choice May 09 12:46:15 [kernel] uvcvideo: Found UVC 1.00 device DEF-299A Camera (1871:0603) May 09 12:46:16 [kernel] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. May 09 12:46:16 [kernel] input: DEF-299A Camera as /devices/pci0000:00/0000:00:02.2/usb1/1-5/1-5:1.0/input/input19 After quick look at drivers/media/video/uvc/uvc_video.c I tried to increase UVC_CTRL_STREAMING_TIMEOUT up to 10000, but this doesn't help. Tuning UVC_CTRL_CONTROL_TIMEOUT up to 10000 doesn't solve the issue also. Maybe cam itself is bad (it is rather cheap), but after successfull initialization it works flawlessly for several days, thus I doubt this is hardware only problem. Maybe some other timeout should be increased? I found no reliable correlations between events of success and failure, they also seems to not depend on USB port or host controller (I have both EHCI and OHCI). -- Best regards, Andrew
Udevadm info starts with the device specified by the devpath and then
walks up the chain of parent devices. It prints for every device
found, all possible attributes in the udev rules key format.
A rule to match, can be composed by the attributes of the device
and the attributes from one single parent device.
looking at device '/devices/pci0000:00/0000:00:02.2/usb1/1-5':
KERNEL=="1-5"
SUBSYSTEM=="usb"
DRIVER=="usb"
ATTR{configuration}==""
ATTR{bNumInterfaces}==" 2"
ATTR{bConfigurationValue}=="1"
ATTR{bmAttributes}=="80"
ATTR{bMaxPower}=="500mA"
ATTR{urbnum}=="17483"
ATTR{idVendor}=="1871"
ATTR{idProduct}=="0603"
ATTR{bcdDevice}=="0218"
ATTR{bDeviceClass}=="ef"
ATTR{bDeviceSubClass}=="02"
ATTR{bDeviceProtocol}=="01"
ATTR{bNumConfigurations}=="1"
ATTR{bMaxPacketSize0}=="64"
ATTR{speed}=="480"
ATTR{busnum}=="1"
ATTR{devnum}=="67"
ATTR{version}==" 2.00"
ATTR{maxchild}=="0"
ATTR{quirks}=="0x0"
ATTR{authorized}=="1"
ATTR{manufacturer}=="USB2.0 Camera"
ATTR{product}=="DEF-299A Camera"
looking at parent device '/devices/pci0000:00/0000:00:02.2/usb1':
KERNELS=="usb1"
SUBSYSTEMS=="usb"
DRIVERS=="usb"
ATTRS{configuration}==""
ATTRS{bNumInterfaces}==" 1"
ATTRS{bConfigurationValue}=="1"
ATTRS{bmAttributes}=="e0"
ATTRS{bMaxPower}==" 0mA"
ATTRS{urbnum}=="1702"
ATTRS{idVendor}=="1d6b"
ATTRS{idProduct}=="0002"
ATTRS{bcdDevice}=="0206"
ATTRS{bDeviceClass}=="09"
ATTRS{bDeviceSubClass}=="00"
ATTRS{bDeviceProtocol}=="00"
ATTRS{bNumConfigurations}=="1"
ATTRS{bMaxPacketSize0}=="64"
ATTRS{speed}=="480"
ATTRS{busnum}=="1"
ATTRS{devnum}=="1"
ATTRS{version}==" 2.00"
ATTRS{maxchild}=="6"
ATTRS{quirks}=="0x0"
ATTRS{authorized}=="1"
ATTRS{manufacturer}=="Linux 2.6.29.2-yoruichi ehci_hcd"
ATTRS{product}=="EHCI Host Controller"
ATTRS{serial}=="0000:00:02.2"
ATTRS{authorized_default}=="1"
looking at parent device '/devices/pci0000:00/0000:00:02.2':
KERNELS=="0000:00:02.2"
SUBSYSTEMS=="pci"
DRIVERS=="ehci_hcd"
ATTRS{vendor}=="0x10de"
ATTRS{device}=="0x0068"
ATTRS{subsystem_vendor}=="0x1043"
ATTRS{subsystem_device}=="0x0c11"
ATTRS{class}=="0x0c0320"
ATTRS{irq}=="21"
ATTRS{local_cpus}=="1"
ATTRS{local_cpulist}=="0"
ATTRS{modalias}=="pci:v000010DEd00000068sv00001043sd00000C11bc0Csc03i20"
ATTRS{enable}=="1"
ATTRS{broken_parity_status}=="0"
ATTRS{msi_bus}==""
looking at parent device '/devices/pci0000:00':
KERNELS=="pci0000:00"
SUBSYSTEMS==""
DRIVERS==""
Bus 001 Device 067: ID 1871:0603 Aveo Technology Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x1871 Aveo Technology Corp.
idProduct 0x0603
bcdDevice 2.18
iManufacturer 1 USB2.0 Camera
iProduct 2 DEF-299A Camera
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 419
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 2 DEF-299A Camera
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 2 DEF-299A Camera
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 77
dwClockFrequency 12.000000MHz
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 0x00000000
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 3
bSourceID 1
wMaxMultiplier 0
bControlSize 2
bmControls 0x0000043b
Brightness
Contrast
Saturation
Sharpness
Gamma
Power Line Frequency
iProcessing 0
bmVideoStandards 0x1a
NTSC - 525/60
SECAM - 625/50
NTSC - 625/50
VideoControl Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {52f2b8aa-d18e-7249-8ced-96b17f04408b}
bNumControl 1
bNrPins 1
baSourceID( 0) 3
bControlSize 1
bmControls( 0) 0x01
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 0x0008 1x 8 bytes
bInterval 7
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 215
bEndPointAddress 131
bmInfo 0
bTerminalLink 2
bStillCaptureMethod 2
bTriggerSupport 1
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 5
guidFormat {59555932-0000-1000-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 4
bAspectRatioY 3
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 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 160
wHeight 120
dwMinBitRate 9216000
dwMaxBitRate 9216000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 36864000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 352
wHeight 288
dwMinBitRate 48660480
dwMaxBitRate 48660480
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 176
wHeight 144
dwMinBitRate 12165120
dwMaxBitRate 12165120
dwMaxVideoFrameBufferSize 50688
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 3
wWidth( 0) 640
wHeight( 0) 480
wWidth( 1) 320
wHeight( 1) 240
wWidth( 2) 160
wHeight( 2) 120
bNumCompressionPatterns 3
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0204 1x 516 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 0x83 EP 3 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0304 1x 772 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 0x83 EP 3 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x03f4 1x 1012 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 0x83 EP 3 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0bf4 2x 1012 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
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 0x13f4 3x 1012 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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