Dear Linux UVC developers:
Thanks for every support.
I tested one USB HDMI capture dongle on raspberry Pi.
And UVC couldn’t detect and initialize well.
Here’s the logs.
---- Kernel Log ----
[ 131.830253] uvcvideo: Suspending interface 1
[ 131.830266] uvcvideo: Suspending interface 0
[ 132.699032] usb 1-1.1.3: USB disconnect, device number 31
[ 133.395894] usb 1-1.1.3: new high-speed USB device number 32 using dwc_otg
[ 133.493419] usb 1-1.1.3: New USB device found, idVendor=1e4e, idProduct=7016
[ 133.493507] usb 1-1.1.3: New USB device strings: Mfr=0, Product=0,
SerialNumber=3
[ 133.493521] usb 1-1.1.3: SerialNumber: 20000130041415
[ 133.506389] uvcvideo: Probing generic UVC device 1.1.3
[ 133.506744] uvcvideo: Found format MJPEG.
[ 133.506758] uvcvideo: - 1920x1080 (60.0 fps)
[ 133.506789] uvcvideo: Found UVC 1.00 device <unnamed> (1e4e:7016)
[ 133.509005] uvcvideo: Scanning UVC chain: OT 2 <- XU 4 <- PU 3 <- IT 1
[ 133.509500] uvcvideo: Found a valid video chain (1 -> 2).
[ 133.514889] uvcvideo: UVC non compliance - GET_DEF(PROBE) not
supported. Enabling workaround.
[ 133.517651] uvcvideo 1-1.1.3:1.0: Entity type for entity Extension
4 was not initialized!
[ 133.517741] uvcvideo 1-1.1.3:1.0: Entity type for entity Processing
3 was not initialized!
[ 133.517763] uvcvideo 1-1.1.3:1.0: Entity type for entity Camera 1
was not initialized!
[ 133.519279] uvcvideo: UVC device initialized.
[ 137.819033] usb 1-1.1.3: USB disconnect, device number 32
[ 138.259275] usb 1-1.1.3: new high-speed USB device number 33 using dwc_otg
[ 138.358400] usb 1-1.1.3: New USB device found, idVendor=1e4e, idProduct=7016
[ 138.358419] usb 1-1.1.3: New USB device strings: Mfr=0, Product=0,
SerialNumber=3
[ 138.358498] usb 1-1.1.3: SerialNumber: 20000130041415
[ 138.365497] uvcvideo: Found UVC 1.00 device <unnamed> (1e4e:7016)
[ 138.381746] uvcvideo: UVC non compliance - GET_DEF(PROBE) not
supported. Enabling workaround.
[ 138.384747] uvcvideo 1-1.1.3:1.0: Entity type for entity Extension
4 was not initialized!
[ 138.384773] uvcvideo 1-1.1.3:1.0: Entity type for entity Processing
3 was not initialized!
[ 138.384794] uvcvideo 1-1.1.3:1.0: Entity type for entity Camera 1
was not initialized!
---- lsusb log ----
Bus 001 Device 078: ID 1e4e:7016
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.10
bDeviceClass 239
bDeviceSubClass 2
bDeviceProtocol 1
bMaxPacketSize0 64
idVendor 0x1e4e
idProduct 0x7016
bcdDevice 1.00
iManufacturer 0
iProduct 0
iSerial 3 20000130041415
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 296
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 150mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14
bFunctionSubClass 3
bFunctionProtocol 0
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14
bInterfaceSubClass 1
bInterfaceProtocol 0
iInterface 0
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 77
dwClockFrequency 120.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x00000000
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 3
bSourceID 1
wMaxMultiplier 0
bControlSize 2
bmControls 0x00000000
iProcessing 0
bmVideoStandards 0x 9
None
SECAM - 625/50
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101
bAssocTerminal 0
bSourceID 4
iTerminal 0
VideoControl Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {5b126dc6-8004-4408-8c26-b8363a84de63}
bNumControl 3
bNrPins 1
baSourceID( 0) 3
bControlSize 1
bmControls( 0) 0x07
iExtension 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14
bInterfaceSubClass 2
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 61
bEndPointAddress 137
bmInfo 0
bTerminalLink 2
bStillCaptureMethod 0
bTriggerSupport 0
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 11
VideoStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 6 (FORMAT_MJPEG)
bFormatIndex 1
bNumFrameDescriptors 1
bFlags 0
Fixed-size samples: No
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 1920
wHeight 1080
dwMinBitRate 497664000
dwMaxBitRate 497664000
dwMaxVideoFrameBufferSize 1036800
dwDefaultFrameInterval 166666
bFrameIntervalType 1
dwFrameInterval( 0) 166666
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
bInterfaceSubClass 2
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x89 EP 9 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 1
bFunctionSubClass 2
bFunctionProtocol 0
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1
bInterfaceSubClass 1
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 38
bInCollection 1
baInterfaceNr( 0) 3
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201
bAssocTerminal 0
bNrChannels 1
wChannelConfig 0x0000
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101
bAssocTerminal 0
bSourceID 3
iTerminal 0
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 3
bSourceID 1
bControlSize 1
bmaControls( 0) 0x03
Mute Control
Volume Control
iFeature 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1
bInterfaceSubClass 2
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1
bInterfaceSubClass 2
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x8a EP 10 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x00c0 1x 192 bytes
bInterval 4
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 22
bNumDeviceCaps 2
USB 2.0 Extension Device Capability:
bLength 7
bDescriptorType 16
bDevCapabilityType 2
bmAttributes 0x00000006
Link Power Management (LPM) Supported
SuperSpeed USB Device Capability:
bLength 10
bDescriptorType 16
bDevCapabilityType 3
bmAttributes 0x00
wSpeedsSupported 0x000e
Device can operate at Full Speed (12Mbps)
Device can operate at High Speed (480Mbps)
Device can operate at SuperSpeed (5Gbps)
bFunctionalitySupport 1
Lowest fully-functional device speed is Full Speed (12Mbps)
bU1DevExitLat 4 micro seconds
bU2DevExitLat 4 micro seconds
Device Status: 0x0000
(Bus Powered)
