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Re: uvideo uvm_fault panic
I've updated the current kernel on rpi4 to 29 Apr from 14 Apr,
and got same panic for my webcam [*1].
After bisecting, it appears that dev/usb/uvideo.c rev 1.77 works,
but 1.79 does not.
When executing 'videoctl -a', vs->vs_default_format in uvideo_open
of 1.79 remains NULL.
Copying structure from address 0x0 causes uvm fault,
that's why kernel panics.
I don't know well about UVC spec., but I think diffs between
dmesg of uvideo.c 1.77 [*2] and 1.79 [*3] with UVIDEO_DEBUG
may give us some suggestions.
--- 1.77 2022-05-01 05:58:59.913948706 +0000
+++ 1.79 2022-05-01 05:59:03.908444423 +0000
@@ -28,22 +28,21 @@
uvideo_attach: VS Endpoint: Len=7 Type=0x05 bEndpointAddress=0x81 bmAttributes=00000101 wMaxPacketSize=3068 bInterval=1
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x01 bAlternateSetting=0x03 bNumEndpoints=0x01 bInterfaceClass=0x0e bInterfaceSubClass=0x02 bInterfaceProtocol=0x00 iInterface=0x00
uvideo_attach: VS Endpoint: Len=7 Type=0x05 bEndpointAddress=0x81 bmAttributes=00000101 wMaxPacketSize=5116 bInterval=1
-uvideo_stream_init: uvideo0 ifaceno=1 vs=0xffff0000fb056400
+uvideo_stream_init: uvideo0 ifaceno=1 vs=0xffff0000fb058200
uvideo_stream_init: probelen=26
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=0
uvideo_stream_init_frame_based_format: ifaceno=1 subtype=1 probelen=26
uvideo_stream_init_frame_based_format: mjpeg
uvideo: Adding pixel format 9
-uvideo: found format (index 1) type 9 size 1280x720 size 1843200 stride 2560 interval 333333
- ^ picking this one
-uvideo: found format (index 2) type 9 size 640x480 size 614400 stride 1280 interval 333333
+uvideo: truncated CS subtype-0x7 descriptor, length 30 < 38uvideo: unimplemented VS CS descriptor len=30 type=0x24 subtype=0x07
+uvideo: unimplemented VS CS descriptor len=30 type=0x24 subtype=0x07
uvideo: unimplemented VS CS descriptor len=18 type=0x24 subtype=0x03
uvideo: unimplemented VS CS descriptor len=6 type=0x24 subtype=0x0d
uvideo_stream_init_frame_based_format: ifaceno=1 subtype=1 probelen=26
uvideo_stream_init_frame_based_format: uncompressed
uvideo: Adding pixel format 1
-uvideo: found format (index 1) type 1 size 1280x720 size 1843200 stride 2560 interval 1000000
-uvideo: found format (index 2) type 1 size 640x480 size 614400 stride 1280 interval 333333
+uvideo: truncated CS subtype-0x5 descriptor, length 30 < 38uvideo: unimplemented VS CS descriptor len=30 type=0x24 subtype=0x05
+uvideo: unimplemented VS CS descriptor len=30 type=0x24 subtype=0x05
uvideo: unimplemented VS CS descriptor len=15 type=0x24 subtype=0x03
uvideo: unimplemented VS CS descriptor len=6 type=0x24 subtype=0x0d
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=0 done
[*1]
lsusb -v for my webcam
Bus 000 Device 002: ID 0c45:64ab Microdia
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.01
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x0c45 Microdia
idProduct 0x64ab
bcdDevice 10.26
iManufacturer 1 ZB-H62-201026
iProduct 2 Integrated Camera
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 422
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 4 Integrated Camera
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 4 Integrated Camera
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 109
dwClockFrequency 48.000000MHz
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 0x0000000a
Auto-Exposure Mode
Exposure Time (Absolute)
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 2
bSourceID 1
wMaxMultiplier 16384
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 0x1d
None
PAL - 625/50
SECAM - 625/50
NTSC - 625/50
VideoControl Interface Descriptor:
bLength 29
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 3
guidExtensionCode {7033f028-1163-2e4a-ba2c-6890eb334016}
bNumControl 4
bNrPins 1
baSourceID( 0) 2
bControlSize 4
bmControls( 0) 0x0f
bmControls( 1) 0x00
bmControls( 2) 0x00
bmControls( 3) 0x00
iExtension 0
VideoControl Interface Descriptor:
bLength 29
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {82066163-7050-ab49-b8cc-b3855e8d221d}
bNumControl 20
bNrPins 1
baSourceID( 0) 3
bControlSize 4
bmControls( 0) 0xff
bmControls( 1) 0xff
bmControls( 2) 0x71
bmControls( 3) 0x00
iExtension 0
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 5
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x87 EP 7 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 8
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 218
bEndPointAddress 129
bmInfo 0
bTerminalLink 5
bStillCaptureMethod 2
bTriggerSupport 1
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 11
bmaControls( 1) 11
VideoStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 6 (FORMAT_MJPEG)
bFormatIndex 1
bNumFrameDescriptors 2
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 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 1
bmCapabilities 0x01
Still image supported
wWidth 1280
wHeight 720
dwMinBitRate 442368000
dwMaxBitRate 442368000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 2
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 480
dwMinBitRate 147456000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 2
wWidth( 0) 1280
wHeight( 0) 720
wWidth( 1) 640
wHeight( 1) 480
bNumCompressionPatterns 2
bCompression( 0) 1
bCompression( 1) 5
bCompression( 2) 10
bCompression( 3) 20
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 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 2
bNumFrameDescriptors 2
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 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 720
dwMinBitRate 147456000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 1000000
bFrameIntervalType 1
dwFrameInterval( 0) 1000000
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
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 15
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 2
wWidth( 0) 1280
wHeight( 0) 720
wWidth( 1) 640
wHeight( 1) 480
bNumCompressionPatterns 2
bCompression( 0) 1
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 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x03fc 1x 1020 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 0x0bfc 2x 1020 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 0x13fc 3x 1020 bytes
bInterval 1
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 25
bNumDeviceCaps 1
Container ID Device Capability:
bLength 20
bDescriptorType 16
bDevCapabilityType 4
bReserved 0
ContainerID {2c9fb620-b334-9046-a228-67bd251277e9}
Device Status: 0x0000
(Bus Powered)
[*2]
dmesg from uvideo.c 1.77 with UVIDEO_DEBUG
uvideo0 at uhub2 port 4 configuration 1 interface 0: ZB-H62-201026 (0x0c45) Integrated Camera (0x64ab), rev 2.01/10.26, addr 2
uvideo_attach: non uvc descriptor len=9 type=0x02
uvideo_attach: non uvc descriptor len=8 type=0x0b
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x00 bAlternateSetting=0x00 bNumEndpoints=0x01 bInterfaceClass=0x0e bInterfaceSubClass=0x01 bInterfaceProtocol=0x00 iInterface=0x04
uvideo_attach: VC Interface Header: Len=13 Type=0x24 Subtype=0x01 bcdUVC=256 wTotalLength=109 dwClockFrequency=48000000 bInCollection=1
uvideo_attach: VC Camera Terminal: Len=18 Type=0x24 Subtype=0x02 bTerminalID=1 wTerminalType=201 bAssocTerminal=0 iTerminal=0 wObjectiveFocalLengthMin/Max=0/0 wOcularFocalLength=0 bControlSize=3 bmControls=00000000-00000000-00001010
uvideo_attach: VC Processing Unit: Len=11 Type=0x24 Subtype=0x05 bUnitID=2 bSourceID=1 wMaxMultiplier=16384 bControlSize=2 bmControls=00010111-01111111 iProcessing=0 bmVideoStandards=00011101
uvideo_attach: VC Extension Unit: Len=29 Type=0x24 Subtype=0x06 bUnitID=3 guidExtensionCode=28F03370-6311-4A2E-BA2C-6890EB334016 bNumControls=4 bNrInPins=1 baSourceIDs=2 bControlSize=4 bmControls=00000000-00000000-00000000-00001111 iExtension=0
uvideo_attach: VC Extension Unit: Len=29 Type=0x24 Subtype=0x06 bUnitID=4 guidExtensionCode=63610682-5070-49AB-B8CC-B3855E8D221D bNumControls=20 bNrInPins=1 baSourceIDs=3 bControlSize=4 bmControls=00000000-01110001-11111111-11111111 iExtension=0
uvideo_attach: VC Output Terminal: Len=9 Type=0x24 Subtype=0x03 bTerminalID=5 wTerminalType=101 bAssocTerminal=0 bSourceID=4 iTerminal=0
uvideo_attach: VC Endpoint: Len=7 Type=0x05 bEndpointAddress=0x87 bmAttributes=00000011 wMaxPacketSize=16 bInterval=8
uvideo_attach: VC Interrupt Endpoint: Len=5 Type=0x25 Subtype=0x03 wMaxTransferSize=1029
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x01 bAlternateSetting=0x00 bNumEndpoints=0x00 bInterfaceClass=0x0e bInterfaceSubClass=0x02 bInterfaceProtocol=0x00 iInterface=0x00
uvideo_attach: VS Interface Input Header: Len=15 Type=0x24 Subtype=0x01 bNumFormats=2 wTotalLength=218 bEndpointAddress=129 bmInfo=0 bTerminalLink=5 bStillCaptureMethod=2 bTriggerSupport=1 bTriggerUsage=0 bControlSize=1 00000100
uvideo_attach: VS MJPEG format: Len=11 Type=0x24 Subtype=0x06 bFormatIndex=1 bNumFrameDescriptors=2 bmFlags=0x01 bDefaultFrameIndex=1 bAspectRatioX=0 bAspectRatioY=0 bmInterlaceFlags=0x00 bCopyProtect=0
uvideo_attach: VS [truncated videostream frame mjpeg]
uvideo_attach: VS [truncated videostream frame mjpeg]
uvideo_attach: VS unknown cs interface: len=18 type=0x24 subtype=0x03
uvideo_attach: VS unknown cs interface: len=6 type=0x24 subtype=0x0d
uvideo_attach: VS Format Uncompressed: Len=27 Type=0x24 Subtype=0x04 bFormatIndex=2 bNumFrameDescriptors=2 32595559-00-10-8000-00AA00389B71 bBitsPerPixel=16 bDefaultFrameIndex=1 bAspectRatioX=0 bAspectRatioY=0 bmInterlaceFlags=0x00 bCopyProtect=0
uvideo_attach: VS [truncated videostream frame uncompressed]
uvideo_attach: VS [truncated videostream frame uncompressed]
uvideo_attach: VS unknown cs interface: len=15 type=0x24 subtype=0x03
uvideo_attach: VS unknown cs interface: len=6 type=0x24 subtype=0x0d
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x01 bAlternateSetting=0x01 bNumEndpoints=0x01 bInterfaceClass=0x0e bInterfaceSubClass=0x02 bInterfaceProtocol=0x00 iInterface=0x00
uvideo_attach: VS Endpoint: Len=7 Type=0x05 bEndpointAddress=0x81 bmAttributes=00000101 wMaxPacketSize=1020 bInterval=1
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x01 bAlternateSetting=0x02 bNumEndpoints=0x01 bInterfaceClass=0x0e bInterfaceSubClass=0x02 bInterfaceProtocol=0x00 iInterface=0x00
uvideo_attach: VS Endpoint: Len=7 Type=0x05 bEndpointAddress=0x81 bmAttributes=00000101 wMaxPacketSize=3068 bInterval=1
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x01 bAlternateSetting=0x03 bNumEndpoints=0x01 bInterfaceClass=0x0e bInterfaceSubClass=0x02 bInterfaceProtocol=0x00 iInterface=0x00
uvideo_attach: VS Endpoint: Len=7 Type=0x05 bEndpointAddress=0x81 bmAttributes=00000101 wMaxPacketSize=5116 bInterval=1
uvideo_stream_init: uvideo0 ifaceno=1 vs=0xffff0000fb056400
uvideo_stream_init: probelen=26
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=0
uvideo_stream_init_frame_based_format: ifaceno=1 subtype=1 probelen=26
uvideo_stream_init_frame_based_format: mjpeg
uvideo: Adding pixel format 9
uvideo: found format (index 1) type 9 size 1280x720 size 1843200 stride 2560 interval 333333
^ picking this one
uvideo: found format (index 2) type 9 size 640x480 size 614400 stride 1280 interval 333333
uvideo: unimplemented VS CS descriptor len=18 type=0x24 subtype=0x03
uvideo: unimplemented VS CS descriptor len=6 type=0x24 subtype=0x0d
uvideo_stream_init_frame_based_format: ifaceno=1 subtype=1 probelen=26
uvideo_stream_init_frame_based_format: uncompressed
uvideo: Adding pixel format 1
uvideo: found format (index 1) type 1 size 1280x720 size 1843200 stride 2560 interval 1000000
uvideo: found format (index 2) type 1 size 640x480 size 614400 stride 1280 interval 333333
uvideo: unimplemented VS CS descriptor len=15 type=0x24 subtype=0x03
uvideo: unimplemented VS CS descriptor len=6 type=0x24 subtype=0x0d
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=0 done
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=1
uvideo_attach: ISOC stream *
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=1 done
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=2
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=2 done
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=3
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=3 done
video0 at uvideo0: ZB-H62-201026 (0x0c45) Integrated Camera (0x64ab), rev 2.01/10.26, addr 2
[*3]
dmesg from uvideo.c 1.79 with UVIDEO_DEBUG
uvideo0 at uhub2 port 4 configuration 1 interface 0: ZB-H62-201026 (0x0c45) Integrated Camera (0x64ab), rev 2.01/10.26, addr 2
uvideo_attach: non uvc descriptor len=9 type=0x02
uvideo_attach: non uvc descriptor len=8 type=0x0b
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x00 bAlternateSetting=0x00 bNumEndpoints=0x01 bInterfaceClass=0x0e bInterfaceSubClass=0x01 bInterfaceProtocol=0x00 iInterface=0x04
uvideo_attach: VC Interface Header: Len=13 Type=0x24 Subtype=0x01 bcdUVC=256 wTotalLength=109 dwClockFrequency=48000000 bInCollection=1
uvideo_attach: VC Camera Terminal: Len=18 Type=0x24 Subtype=0x02 bTerminalID=1 wTerminalType=201 bAssocTerminal=0 iTerminal=0 wObjectiveFocalLengthMin/Max=0/0 wOcularFocalLength=0 bControlSize=3 bmControls=00000000-00000000-00001010
uvideo_attach: VC Processing Unit: Len=11 Type=0x24 Subtype=0x05 bUnitID=2 bSourceID=1 wMaxMultiplier=16384 bControlSize=2 bmControls=00010111-01111111 iProcessing=0 bmVideoStandards=00011101
uvideo_attach: VC Extension Unit: Len=29 Type=0x24 Subtype=0x06 bUnitID=3 guidExtensionCode=28F03370-6311-4A2E-BA2C-6890EB334016 bNumControls=4 bNrInPins=1 baSourceIDs=2 bControlSize=4 bmControls=00000000-00000000-00000000-00001111 iExtension=0
uvideo_attach: VC Extension Unit: Len=29 Type=0x24 Subtype=0x06 bUnitID=4 guidExtensionCode=63610682-5070-49AB-B8CC-B3855E8D221D bNumControls=20 bNrInPins=1 baSourceIDs=3 bControlSize=4 bmControls=00000000-01110001-11111111-11111111 iExtension=0
uvideo_attach: VC Output Terminal: Len=9 Type=0x24 Subtype=0x03 bTerminalID=5 wTerminalType=101 bAssocTerminal=0 bSourceID=4 iTerminal=0
uvideo_attach: VC Endpoint: Len=7 Type=0x05 bEndpointAddress=0x87 bmAttributes=00000011 wMaxPacketSize=16 bInterval=8
uvideo_attach: VC Interrupt Endpoint: Len=5 Type=0x25 Subtype=0x03 wMaxTransferSize=1029
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x01 bAlternateSetting=0x00 bNumEndpoints=0x00 bInterfaceClass=0x0e bInterfaceSubClass=0x02 bInterfaceProtocol=0x00 iInterface=0x00
uvideo_attach: VS Interface Input Header: Len=15 Type=0x24 Subtype=0x01 bNumFormats=2 wTotalLength=218 bEndpointAddress=129 bmInfo=0 bTerminalLink=5 bStillCaptureMethod=2 bTriggerSupport=1 bTriggerUsage=0 bControlSize=1 00000100
uvideo_attach: VS MJPEG format: Len=11 Type=0x24 Subtype=0x06 bFormatIndex=1 bNumFrameDescriptors=2 bmFlags=0x01 bDefaultFrameIndex=1 bAspectRatioX=0 bAspectRatioY=0 bmInterlaceFlags=0x00 bCopyProtect=0
uvideo_attach: VS [truncated videostream frame mjpeg]
uvideo_attach: VS [truncated videostream frame mjpeg]
uvideo_attach: VS unknown cs interface: len=18 type=0x24 subtype=0x03
uvideo_attach: VS unknown cs interface: len=6 type=0x24 subtype=0x0d
uvideo_attach: VS Format Uncompressed: Len=27 Type=0x24 Subtype=0x04 bFormatIndex=2 bNumFrameDescriptors=2 32595559-00-10-8000-00AA00389B71 bBitsPerPixel=16 bDefaultFrameIndex=1 bAspectRatioX=0 bAspectRatioY=0 bmInterlaceFlags=0x00 bCopyProtect=0
uvideo_attach: VS [truncated videostream frame uncompressed]
uvideo_attach: VS [truncated videostream frame uncompressed]
uvideo_attach: VS unknown cs interface: len=15 type=0x24 subtype=0x03
uvideo_attach: VS unknown cs interface: len=6 type=0x24 subtype=0x0d
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x01 bAlternateSetting=0x01 bNumEndpoints=0x01 bInterfaceClass=0x0e bInterfaceSubClass=0x02 bInterfaceProtocol=0x00 iInterface=0x00
uvideo_attach: VS Endpoint: Len=7 Type=0x05 bEndpointAddress=0x81 bmAttributes=00000101 wMaxPacketSize=1020 bInterval=1
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x01 bAlternateSetting=0x02 bNumEndpoints=0x01 bInterfaceClass=0x0e bInterfaceSubClass=0x02 bInterfaceProtocol=0x00 iInterface=0x00
uvideo_attach: VS Endpoint: Len=7 Type=0x05 bEndpointAddress=0x81 bmAttributes=00000101 wMaxPacketSize=3068 bInterval=1
uvideo_attach: Interface: Len=9 Type=0x04 bInterfaceNumber=0x01 bAlternateSetting=0x03 bNumEndpoints=0x01 bInterfaceClass=0x0e bInterfaceSubClass=0x02 bInterfaceProtocol=0x00 iInterface=0x00
uvideo_attach: VS Endpoint: Len=7 Type=0x05 bEndpointAddress=0x81 bmAttributes=00000101 wMaxPacketSize=5116 bInterval=1
uvideo_stream_init: uvideo0 ifaceno=1 vs=0xffff0000fb058200
uvideo_stream_init: probelen=26
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=0
uvideo_stream_init_frame_based_format: ifaceno=1 subtype=1 probelen=26
uvideo_stream_init_frame_based_format: mjpeg
uvideo: Adding pixel format 9
uvideo: truncated CS subtype-0x7 descriptor, length 30 < 38uvideo: unimplemented VS CS descriptor len=30 type=0x24 subtype=0x07
uvideo: unimplemented VS CS descriptor len=30 type=0x24 subtype=0x07
uvideo: unimplemented VS CS descriptor len=18 type=0x24 subtype=0x03
uvideo: unimplemented VS CS descriptor len=6 type=0x24 subtype=0x0d
uvideo_stream_init_frame_based_format: ifaceno=1 subtype=1 probelen=26
uvideo_stream_init_frame_based_format: uncompressed
uvideo: Adding pixel format 1
uvideo: truncated CS subtype-0x5 descriptor, length 30 < 38uvideo: unimplemented VS CS descriptor len=30 type=0x24 subtype=0x05
uvideo: unimplemented VS CS descriptor len=30 type=0x24 subtype=0x05
uvideo: unimplemented VS CS descriptor len=15 type=0x24 subtype=0x03
uvideo: unimplemented VS CS descriptor len=6 type=0x24 subtype=0x0d
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=0 done
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=1
uvideo_attach: ISOC stream *
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=1 done
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=2
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=2 done
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=3
uvideo_stream_init_desc: bInterfaceNumber=1 bAlternateSetting=3 done
video0 at uvideo0: ZB-H62-201026 (0x0c45) Integrated Camera (0x64ab), rev 2.01/10.26, addr 2
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