하드웨어/캡쳐보드 카메라2026. 9. 4. 11:00

uvc 관련 정보 조회 방법

stm32n6 에서 연결하기 위한 기본 정보 조회

 

다이소 웹캠

$ v4l2-ctl --list-formats-ext -d /dev/video2
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture

[0]: 'YUYV' (YUYV 4:2:2)
Size: Discrete 640x480
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 352x288
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 320x240
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 176x144
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 160x120
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)


$ lsusb -v -d 1908:2311

Bus 001 Device 064: ID 1908:2311 GEMBIRD Generic UVC 1.00 camera [AppoTech AX2311]
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x1908 GEMBIRD
  idProduct          0x2311 Generic UVC 1.00 camera [AppoTech AX2311]
  bcdDevice            1.00
  iManufacturer           1 Generic
  iProduct                2 USB2.0 PC CAMERA
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0155
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              256mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass         14 Video
      bFunctionSubClass       3 Video Interface Collection
      bFunctionProtocol       0 
      iFunction               2 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      1 Video Control
      bInterfaceProtocol      0 
      iInterface              2 
      VideoControl Interface Descriptor:
        bLength                13
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdUVC               1.00
        wTotalLength       0x0033
        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           0x00000000
      VideoControl Interface Descriptor:
        bLength                11
        bDescriptorType        36
        bDescriptorSubtype      5 (PROCESSING_UNIT)
      Warning: Descriptor too short
        bUnitID                 2
        bSourceID               1
        wMaxMultiplier          0
        bControlSize            2
        bmControls     0x0000053f
          Brightness
          Contrast
          Hue
          Saturation
          Sharpness
          Gamma
          Backlight Compensation
          Power Line Frequency
        iProcessing             0 
        bmVideoStandards     0x09
          None
          SECAM - 625/50
      VideoControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             3
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bSourceID               2
        iTerminal               0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval               5
    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                   0x00e3
        bEndpointAddress                 0x82  EP 2 IN
        bmInfo                              0
        bTerminalLink                       3
        bStillCaptureMethod                 2
        bTriggerSupport                     1
        bTriggerUsage                       1
        bControlSize                        1
        bmaControls( 0)                     0
      VideoStreaming Interface Descriptor:
        bLength                            27
        bDescriptorType                    36
        bDescriptorSubtype                  4 (FORMAT_UNCOMPRESSED)
        bFormatIndex                        1
        bNumFrameDescriptors                5
        guidFormat                            {32595559-0000-0010-8000-00aa00389b71}
        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                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         1
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            640
        wHeight                           480
        dwMinBitRate                 73728000
        dwMaxBitRate                147456000
        dwMaxVideoFrameBufferSize      614400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666667
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         2
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            352
        wHeight                           288
        dwMinBitRate                 24330240
        dwMaxBitRate                 48660480
        dwMaxVideoFrameBufferSize      202752
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666667
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         3
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            320
        wHeight                           240
        dwMinBitRate                 18432000
        dwMaxBitRate                 36864000
        dwMaxVideoFrameBufferSize      153600
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666667
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         4
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            176
        wHeight                           144
        dwMinBitRate                  6082560
        dwMaxBitRate                 12165120
        dwMaxVideoFrameBufferSize       50688
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666667
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         5
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            160
        wHeight                           120
        dwMinBitRate                  4608000
        dwMaxBitRate                  9216000
        dwMaxVideoFrameBufferSize       38400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666667
      VideoStreaming Interface Descriptor:
        bLength                            10
        bDescriptorType                    36
        bDescriptorSubtype                  3 (STILL_IMAGE_FRAME)
        bEndpointAddress                 0x00  EP 0 OUT
        bNumImageSizePatterns               1
        wWidth( 0)                        640
        wHeight( 0)                       480
        bNumCompressionPatterns             0
      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     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x1400  3x 1024 bytes
        bInterval               1

 

옛날꺼 dbc-up

[링크 : https://blog.naver.com/song_ceo/220159817724]

$ v4l2-ctl --list-formats-ext -d /dev/video2
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture

[0]: 'JPEG' (JFIF JPEG, compressed)
Size: Discrete 320x240
Size: Discrete 640x480

$ lsusb -v -d 0ac8:301b

Bus 001 Device 068: ID 0ac8:301b Z-Star Microelectronics Corp. ZC0301 Webcam
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x0ac8 Z-Star Microelectronics Corp.
  idProduct          0x301b ZC0301 Webcam
  bcdDevice            1.00
  iManufacturer           1 Vimicro Corp.
  iProduct                2 PC Camera
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x00c1
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              160mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0000  1x 0 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       1
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0080  1x 128 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       2
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x00c0  1x 192 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       3
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0100  1x 256 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       4
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0180  1x 384 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       5
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       6
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0300  1x 768 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       7
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0380  1x 896 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10

 

조이트론 웹캠 HD20

$ v4l2-ctl --list-formats-ext -d /dev/video2
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture

[0]: 'MJPG' (Motion-JPEG, compressed)
Size: Discrete 1920x1080
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 1280x720
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 1280x800
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 1024x768
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 848x480
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 800x600
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 640x480
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 640x360
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 320x240
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
[1]: 'YUYV' (YUYV 4:2:2)
Size: Discrete 1920x1080
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 1280x720
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 1280x800
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 1024x768
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 848x480
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 800x600
Interval: Discrete 0.100s (10.000 fps)
Interval: Discrete 0.200s (5.000 fps)
Size: Discrete 640x480
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 640x360
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)
Size: Discrete 320x240
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.040s (25.000 fps)
Interval: Discrete 0.050s (20.000 fps)
Interval: Discrete 0.067s (15.000 fps)

$ lsusb -v -d 145f:02aa

Bus 001 Device 069: ID 145f:02aa Trust JOYTRON HD20
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x145f Trust
  idProduct          0x02aa 
  bcdDevice            0.11
  iManufacturer           3 SC
  iProduct                1 JOYTRON HD20
  iSerial                 2 202001010001
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0623
    bNumInterfaces          4
    bConfigurationValue     1
    iConfiguration          4 
    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               5 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      1 Video Control
      bInterfaceProtocol      0 
      iInterface              5 
      VideoControl Interface Descriptor:
        bLength                13
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdUVC               1.00
        wTotalLength       0x004e
        dwClockFrequency       15.000000MHz
        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           0x00022a2e
          Auto-Exposure Mode
          Auto-Exposure Priority
          Exposure Time (Absolute)
          Focus (Absolute)
          Zoom (Absolute)
          PanTilt (Absolute)
          Roll (Absolute)
          Focus, Auto
      VideoControl Interface Descriptor:
        bLength                11
        bDescriptorType        36
        bDescriptorSubtype      5 (PROCESSING_UNIT)
      Warning: Descriptor too short
        bUnitID                 2
        bSourceID               1
        wMaxMultiplier          0
        bControlSize            2
        bmControls     0x0000157f
          Brightness
          Contrast
          Hue
          Saturation
          Sharpness
          Gamma
          White Balance Temperature
          Backlight Compensation
          Power Line Frequency
          White Balance Temperature, Auto
        iProcessing             0 
        bmVideoStandards     0x09
          None
          SECAM - 625/50
      VideoControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             3
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bSourceID               4
        iTerminal               0 
      VideoControl Interface Descriptor:
        bLength                27
        bDescriptorType        36
        bDescriptorSubtype      6 (EXTENSION_UNIT)
        bUnitID                 4
        guidExtensionCode         {1229a78c-47b4-4094-b0ce-db07386fb938}
        bNumControls            2
        bNrInPins               1
        baSourceID( 0)          2
        bControlSize            2
        bmControls( 0)       0x00
        bmControls( 1)       0x06
        iExtension              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0010  1x 16 bytes
        bInterval               6
    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                   0x039d
        bEndpointAddress                 0x81  EP 1 IN
        bmInfo                              0
        bTerminalLink                       3
        bStillCaptureMethod                 2
        bTriggerSupport                     1
        bTriggerUsage                       0
        bControlSize                        1
        bmaControls( 0)                     0
        bmaControls( 1)                     0
      VideoStreaming Interface Descriptor:
        bLength                            11
        bDescriptorType                    36
        bDescriptorSubtype                  6 (FORMAT_MJPEG)
        bFormatIndex                        1
        bNumFrameDescriptors                9
        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                            50
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         1
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           1920
        wHeight                          1080
        dwMinBitRate                165888000
        dwMaxBitRate                995328000
        dwMaxVideoFrameBufferSize     4147200
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  6
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
        dwFrameInterval( 4)           1000000
        dwFrameInterval( 5)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            50
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         2
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           1280
        wHeight                           720
        dwMinBitRate                 73728000
        dwMaxBitRate                442368000
        dwMaxVideoFrameBufferSize     1843200
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  6
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
        dwFrameInterval( 4)           1000000
        dwFrameInterval( 5)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            50
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         3
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           1280
        wHeight                           800
        dwMinBitRate                 81920000
        dwMaxBitRate                491520000
        dwMaxVideoFrameBufferSize     2048000
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  6
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
        dwFrameInterval( 4)           1000000
        dwFrameInterval( 5)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            50
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         4
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           1024
        wHeight                           768
        dwMinBitRate                 62914560
        dwMaxBitRate                377487360
        dwMaxVideoFrameBufferSize     1572864
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  6
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
        dwFrameInterval( 4)           1000000
        dwFrameInterval( 5)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            50
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         5
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            848
        wHeight                           480
        dwMinBitRate                 32563200
        dwMaxBitRate                195379200
        dwMaxVideoFrameBufferSize      814080
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  6
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
        dwFrameInterval( 4)           1000000
        dwFrameInterval( 5)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            50
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         6
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            800
        wHeight                           600
        dwMinBitRate                 38400000
        dwMaxBitRate                230400000
        dwMaxVideoFrameBufferSize      960000
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  6
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
        dwFrameInterval( 4)           1000000
        dwFrameInterval( 5)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            50
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         7
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            640
        wHeight                           480
        dwMinBitRate                 24576000
        dwMaxBitRate                147456000
        dwMaxVideoFrameBufferSize      614400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  6
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
        dwFrameInterval( 4)           1000000
        dwFrameInterval( 5)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            50
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         8
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            640
        wHeight                           360
        dwMinBitRate                 18432000
        dwMaxBitRate                110592000
        dwMaxVideoFrameBufferSize      460800
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  6
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
        dwFrameInterval( 4)           1000000
        dwFrameInterval( 5)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            50
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         9
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            320
        wHeight                           240
        dwMinBitRate                  6144000
        dwMaxBitRate                 36864000
        dwMaxVideoFrameBufferSize      153600
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  6
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
        dwFrameInterval( 4)           1000000
        dwFrameInterval( 5)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            42
        bDescriptorType                    36
        bDescriptorSubtype                  3 (STILL_IMAGE_FRAME)
        bEndpointAddress                 0x00  EP 0 OUT
        bNumImageSizePatterns               9
        wWidth( 0)                       1920
        wHeight( 0)                      1080
        wWidth( 1)                       1280
        wHeight( 1)                       720
        wWidth( 2)                       1280
        wHeight( 2)                       800
        wWidth( 3)                       1024
        wHeight( 3)                       768
        wWidth( 4)                        848
        wHeight( 4)                       480
        wWidth( 5)                        800
        wHeight( 5)                       600
        wWidth( 6)                        640
        wHeight( 6)                       480
        wWidth( 7)                        640
        wHeight( 7)                       360
        wWidth( 8)                        320
        wHeight( 8)                       240
        bNumCompressionPatterns             0
      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                9
        guidFormat                            {32595559-0000-0010-8000-00aa00389b71}
        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                           1920
        wHeight                          1080
        dwMinBitRate                165888000
        dwMaxBitRate                165888000
        dwMaxVideoFrameBufferSize     4147200
        dwDefaultFrameInterval        2000000
        bFrameIntervalType                  1
        dwFrameInterval( 0)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         2
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           1280
        wHeight                           720
        dwMinBitRate                 73728000
        dwMaxBitRate                147456000
        dwMaxVideoFrameBufferSize     1843200
        dwDefaultFrameInterval        1000000
        bFrameIntervalType                  2
        dwFrameInterval( 0)           1000000
        dwFrameInterval( 1)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         3
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           1280
        wHeight                           800
        dwMinBitRate                 81920000
        dwMaxBitRate                163840000
        dwMaxVideoFrameBufferSize     2048000
        dwDefaultFrameInterval        1000000
        bFrameIntervalType                  2
        dwFrameInterval( 0)           1000000
        dwFrameInterval( 1)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         4
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           1024
        wHeight                           768
        dwMinBitRate                 62914560
        dwMaxBitRate                125829120
        dwMaxVideoFrameBufferSize     1572864
        dwDefaultFrameInterval        1000000
        bFrameIntervalType                  2
        dwFrameInterval( 0)           1000000
        dwFrameInterval( 1)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         5
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            848
        wHeight                           480
        dwMinBitRate                 32563200
        dwMaxBitRate                 65126400
        dwMaxVideoFrameBufferSize      814080
        dwDefaultFrameInterval        1000000
        bFrameIntervalType                  2
        dwFrameInterval( 0)           1000000
        dwFrameInterval( 1)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         6
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            800
        wHeight                           600
        dwMinBitRate                 38400000
        dwMaxBitRate                 76800000
        dwMaxVideoFrameBufferSize      960000
        dwDefaultFrameInterval        1000000
        bFrameIntervalType                  2
        dwFrameInterval( 0)           1000000
        dwFrameInterval( 1)           2000000
      VideoStreaming Interface Descriptor:
        bLength                            42
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         7
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            640
        wHeight                           480
        dwMinBitRate                 73728000
        dwMaxBitRate                147456000
        dwMaxVideoFrameBufferSize      614400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  4
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
      VideoStreaming Interface Descriptor:
        bLength                            42
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         8
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            640
        wHeight                           360
        dwMinBitRate                 55296000
        dwMaxBitRate                110592000
        dwMaxVideoFrameBufferSize      460800
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  4
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
      VideoStreaming Interface Descriptor:
        bLength                            42
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         9
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            320
        wHeight                           240
        dwMinBitRate                 18432000
        dwMaxBitRate                 36864000
        dwMaxVideoFrameBufferSize      153600
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  4
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            400000
        dwFrameInterval( 2)            500000
        dwFrameInterval( 3)            666666
      VideoStreaming Interface Descriptor:
        bLength                            42
        bDescriptorType                    36
        bDescriptorSubtype                  3 (STILL_IMAGE_FRAME)
        bEndpointAddress                 0x00  EP 0 OUT
        bNumImageSizePatterns               9
        wWidth( 0)                       1920
        wHeight( 0)                      1080
        wWidth( 1)                       1280
        wHeight( 1)                       720
        wWidth( 2)                       1280
        wHeight( 2)                       800
        wWidth( 3)                       1024
        wHeight( 3)                       768
        wWidth( 4)                        848
        wHeight( 4)                       480
        wWidth( 5)                        800
        wHeight( 5)                       600
        wWidth( 6)                        640
        wHeight( 6)                       480
        wWidth( 7)                        640
        wHeight( 7)                       360
        wWidth( 8)                        320
        wHeight( 8)                       240
        bNumCompressionPatterns             0
      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     0x0080  1x 128 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     0x0200  1x 512 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     0x0400  1x 1024 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     0x0b00  2x 768 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     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0c00  2x 1024 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       6
      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     0x1380  3x 896 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       7
      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 Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         2
      bInterfaceCount         2
      bFunctionClass          1 Audio
      bFunctionSubClass       2 Streaming
      bFunctionProtocol       0 
      iFunction               6 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      1 Control Device
      bInterfaceProtocol      0 
      iInterface              6 
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdADC               1.00
        wTotalLength       0x0027
        bInCollection           1
        baInterfaceNr(0)        3
      AudioControl Interface Descriptor:
        bLength                12
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             1
        wTerminalType      0x0201 Microphone
        bAssocTerminal          0
        bNrChannels             1
        wChannelConfig     0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames           0 
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             2
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          1
        bSourceID               3
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      6 (FEATURE_UNIT)
        bUnitID                 3
        bSourceID               1
        bControlSize            2
        bmaControls(0)     0x0203
          Mute Control
          Volume Control
          Loudness Control
        iFeature                0 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           2
        bDelay                  1 frames
        wFormatTag         0x0001 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]        22050
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0078  1x 120 bytes
        bInterval               4
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay         0x0000
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       2
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           2
        bDelay                  1 frames
        wFormatTag         0x0001 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]        32000
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x00a0  1x 160 bytes
        bInterval               4
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay         0x0000
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       3
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           2
        bDelay                  1 frames
        wFormatTag         0x0001 PCM
      AudioStreaming Interface Descriptor:
        bLength                11
        bDescriptorType        36
        bDescriptorSubtype      2 (FORMAT_TYPE)
        bFormatType             1 (FORMAT_TYPE_I)
        bNrChannels             1
        bSubframeSize           2
        bBitResolution         16
        bSamFreqType            1 Discrete
        tSamFreq[ 0]        48000
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x00d8  1x 216 bytes
        bInterval               4
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay         0x0000
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       4
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           2
        bDelay                  1 frames
        wFormatTag         0x0001 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     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x00d8  1x 216 bytes
        bInterval               4
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay         0x0000
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       5
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           2
        bDelay                  1 frames
        wFormatTag         0x0001 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]        96000
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x01b0  1x 432 bytes
        bInterval               4
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay         0x0000
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       6
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           2
        bDelay                  1 frames
        wFormatTag         0x0001 PCM
      AudioStreaming Interface Descriptor:
        bLength                11
        bDescriptorType        36
        bDescriptorSubtype      2 (FORMAT_TYPE)
        bFormatType             1 (FORMAT_TYPE_I)
        bNrChannels             2
        bSubframeSize           3
        bBitResolution         24
        bSamFreqType            1 Discrete
        tSamFreq[ 0]        44100
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0130  1x 304 bytes
        bInterval               4
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay         0x0000
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       7
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           2
        bDelay                  1 frames
        wFormatTag         0x0001 PCM
      AudioStreaming Interface Descriptor:
        bLength                11
        bDescriptorType        36
        bDescriptorSubtype      2 (FORMAT_TYPE)
        bFormatType             1 (FORMAT_TYPE_I)
        bNrChannels             2
        bSubframeSize           3
        bBitResolution         24
        bSamFreqType            1 Discrete
        tSamFreq[ 0]        48000
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0150  1x 336 bytes
        bInterval               4
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay         0x0000
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       8
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           2
        bDelay                  1 frames
        wFormatTag         0x0001 PCM
      AudioStreaming Interface Descriptor:
        bLength                11
        bDescriptorType        36
        bDescriptorSubtype      2 (FORMAT_TYPE)
        bFormatType             1 (FORMAT_TYPE_I)
        bNrChannels             2
        bSubframeSize           3
        bBitResolution         24
        bSamFreqType            1 Discrete
        tSamFreq[ 0]        96000
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0290  1x 656 bytes
        bInterval               4
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay         0x0000

 

저작자표시 (새창열림)

'하드웨어 > 캡쳐보드 카메라' 카테고리의 다른 글

웹캠 비디오 포맷  (0) 2026.06.25
로지텍 C920 H.264 지원 웹캠  (0) 2026.06.11
usb webcam 대역폭 에러  (0) 2024.05.09
eos-m 줌렌즈 픽쳐 스타일 설정  (0) 2018.06.24
HCVR5108-S2/-V2 USB wireless 실패  (0) 2018.02.15
Posted by 구차니
하드웨어/캡쳐보드 카메라2026. 6. 25. 10:14

웹캠 비디오 포맷

조이트론 HD20

$ v4l2-ctl --device=/dev/video2 --list-formats
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture

[0]: 'MJPG' (Motion-JPEG, compressed)
[1]: 'YUYV' (YUYV 4:2:2)

 

다이소 웹캠. 

$ v4l2-ctl --device=/dev/video4 --list-formats
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture

[0]: 'YUYV' (YUYV 4:2:2)

 

로지텍 C920

$ v4l2-ctl --device=/dev/video2 --list-formats
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture

[0]: 'YUYV' (YUYV 4:2:2)
[1]: 'H264' (H.264, compressed)
[2]: 'MJPG' (Motion-JPEG, compressed)

2026.06.11 - [하드웨어/캡쳐보드 카메라] - 로지텍 C920 H.264 지원 웹캠

저작자표시 (새창열림)

'하드웨어 > 캡쳐보드 카메라' 카테고리의 다른 글

uvc 관련 정보 조회 방법  (0) 2026.09.04
로지텍 C920 H.264 지원 웹캠  (0) 2026.06.11
usb webcam 대역폭 에러  (0) 2024.05.09
eos-m 줌렌즈 픽쳐 스타일 설정  (0) 2018.06.24
HCVR5108-S2/-V2 USB wireless 실패  (0) 2018.02.15
Posted by 구차니
하드웨어/캡쳐보드 카메라2026. 6. 11. 10:28

로지텍 C920 H.264 지원 웹캠

오.. 웹캠에서도 H.264를 지원해서 비싼거였구나..

[87374.932115] usb 1-2: Product: HD Pro Webcam C920
[87374.935406] usb 1-2: Found UVC 1.00 device HD Pro Webcam C920 (046d:082d)

 

$ v4l2-ctl --device=/dev/video2 --list-formats
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture

[0]: 'YUYV' (YUYV 4:2:2)
[1]: 'H264' (H.264, compressed)
[2]: 'MJPG' (Motion-JPEG, compressed)
저작자표시 (새창열림)

'하드웨어 > 캡쳐보드 카메라' 카테고리의 다른 글

uvc 관련 정보 조회 방법  (0) 2026.09.04
웹캠 비디오 포맷  (0) 2026.06.25
usb webcam 대역폭 에러  (0) 2024.05.09
eos-m 줌렌즈 픽쳐 스타일 설정  (0) 2018.06.24
HCVR5108-S2/-V2 USB wireless 실패  (0) 2018.02.15
Posted by 구차니
하드웨어/캡쳐보드 카메라2024. 5. 9. 16:27

usb webcam 대역폭 에러

로지텍 C920 두개를

USB 3.0 허브에 (iptime UH308) 연결해보고

[193337.869903] usb 1-3.2: new high-speed USB device number 11 using xhci_hcd
[193340.200843] usb 1-3.2: New USB device found, idVendor=046d, idProduct=082d, bcdDevice= 0.11
[193340.200861] usb 1-3.2: New USB device strings: Mfr=0, Product=2, SerialNumber=1
[193340.200868] usb 1-3.2: Product: HD Pro Webcam C920
[193340.200873] usb 1-3.2: SerialNumber: 06379F2F
[193340.202467] usb 1-3.2: Found UVC 1.00 device HD Pro Webcam C920 (046d:082d)
[193340.441788] usb 1-3.3: new high-speed USB device number 12 using xhci_hcd
[193342.792576] usb 1-3.3: New USB device found, idVendor=046d, idProduct=082d, bcdDevice= 0.11
[193342.792582] usb 1-3.3: New USB device strings: Mfr=0, Product=2, SerialNumber=1
[193342.792584] usb 1-3.3: Product: HD Pro Webcam C920
[193342.792586] usb 1-3.3: SerialNumber: 36CA5F6F
[193342.793755] usb 1-3.3: Found UVC 1.00 device HD Pro Webcam C920 (046d:082d)
[193342.993739] usb 1-3.2: reset high-speed USB device number 11 using xhci_hcd
[193343.106011] usb 1-3.2: device firmware changed
[193343.106533] snd-usb-audio: probe of 1-3.2:1.2 failed with error -22
[193343.107009] usb 1-3.2: USB disconnect, device number 11
[193343.253588] usb 1-3.2: new high-speed USB device number 13 using xhci_hcd
[193343.328685] usbcore: registered new interface driver snd-usb-audio
[193344.202429] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[193344.202437] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[193344.202495] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[193344.202498] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[193345.612601] usb 1-3.2: New USB device found, idVendor=046d, idProduct=082d, bcdDevice= 0.11
[193345.612619] usb 1-3.2: New USB device strings: Mfr=0, Product=2, SerialNumber=1
[193345.612626] usb 1-3.2: Product: HD Pro Webcam C920
[193345.612631] usb 1-3.2: SerialNumber: 06379F2F
[193345.614384] usb 1-3.2: Found UVC 1.00 device HD Pro Webcam C920 (046d:082d)
[193353.261631] usb 1-3.3: reset high-speed USB device number 12 using xhci_hcd
[193353.459187] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[193353.459194] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[193353.459258] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[193353.459261] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[193391.503133] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[193391.503140] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[193391.503192] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[193391.503194] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[193398.045306] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[193398.045314] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[193398.045367] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[193398.045370] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[193411.769158] usb 1-3.3: Not enough bandwidth for new device state.
[193411.769169] usb 1-3.3: Not enough bandwidth for altsetting 11
[193449.070234] usb 1-3.2: Not enough bandwidth for new device state.
[193449.070244] usb 1-3.2: Not enough bandwidth for altsetting 11

 

해당 허브의 USB2.0에 연결도 해보는데

[193495.517035] usb 1-3.4.4: Not enough bandwidth for new device state.
[193495.517042] usb 1-3.4.4: Not enough bandwidth for altsetting 11

 

USB2.0이던 3.0이던

Full HD 25p 두 카메라 입력은 무리인 듯

 

UVC 관련 옵션이 있는 것 같은데

나중에 USB2.0 구형 시스템에서 동일 웹캠으로 다시 시도 해봐야 할 듯.

[링크 : https://superuser.com/questions/902800/how-to-limit-the-usb-bandwidth-a-device-can-allocate-on-linux]

 

+2024.05.10

USB 2.0 허브에 카메라 두개 달고 해보니 동일하게 발생한다.

그냥 예전에 사용했던 UVC 카메라가 최대 대역폭을 혼자 다 쓰게 설정되어서 그런건가 싶기도 하고..

[266776.841702] usb 1-2: new high-speed USB device number 20 using xhci_hcd
[266776.989984] usb 1-2: New USB device found, idVendor=1a40, idProduct=0101, bcdDevice= 1.11
[266776.989992] usb 1-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[266776.989995] usb 1-2: Product: USB 2.0 Hub
[266776.991860] hub 1-2:1.0: USB hub found
[266776.991894] hub 1-2:1.0: 4 ports detected
[266777.377698] usb 1-2.1: new high-speed USB device number 21 using xhci_hcd
[266779.824775] usb 1-2.1: New USB device found, idVendor=046d, idProduct=082d, bcdDevice= 0.11
[266779.824791] usb 1-2.1: New USB device strings: Mfr=0, Product=2, SerialNumber=1
[266779.824797] usb 1-2.1: Product: HD Pro Webcam C920
[266779.824802] usb 1-2.1: SerialNumber: 06379F2F
[266779.826472] usb 1-2.1: Found UVC 1.00 device HD Pro Webcam C920 (046d:082d)
[266780.233582] usb 1-2.2: new high-speed USB device number 22 using xhci_hcd
[266782.672670] usb 1-2.2: New USB device found, idVendor=046d, idProduct=082d, bcdDevice= 0.11
[266782.672686] usb 1-2.2: New USB device strings: Mfr=0, Product=2, SerialNumber=1
[266782.672692] usb 1-2.2: Product: HD Pro Webcam C920
[266782.672697] usb 1-2.2: SerialNumber: 36CA5F6F
[266782.674285] usb 1-2.2: Found UVC 1.00 device HD Pro Webcam C920 (046d:082d)
[266783.181584] usb 1-2.1: reset high-speed USB device number 21 using xhci_hcd
[266786.790072] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[266786.790078] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[266786.790135] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[266786.790137] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[266793.966044] usb 1-2.2: reset high-speed USB device number 22 using xhci_hcd
[266794.252230] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[266794.252236] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[266794.252289] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[266794.252291] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[266805.426359] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[266805.426364] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[266805.426427] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[266805.426429] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[266816.380206] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[266816.380213] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[266816.380278] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
[266816.380281] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
[266831.010139] usb 1-2.1: Not enough bandwidth for new device state.
[266831.010146] usb 1-2.1: Not enough bandwidth for altsetting 11
저작자표시 (새창열림)

'하드웨어 > 캡쳐보드 카메라' 카테고리의 다른 글

웹캠 비디오 포맷  (0) 2026.06.25
로지텍 C920 H.264 지원 웹캠  (0) 2026.06.11
eos-m 줌렌즈 픽쳐 스타일 설정  (0) 2018.06.24
HCVR5108-S2/-V2 USB wireless 실패  (0) 2018.02.15
Magewell Pro Capture SDI  (0) 2017.11.30
Posted by 구차니
하드웨어/캡쳐보드 카메라2018. 6. 24. 21:47

eos-m 줌렌즈 픽쳐 스타일 설정

EOS-M 번들 구매하면서 받은 렌즈가 두개인데

EF-M 22mm f/2 STM

EF-M 18-55mm f/3.5-5.6 IS STM


줌 대신 단렌즈를 써온 이유는, 

촛점 속도가 느림에도 불구하고 단렌즈 특유의 쨍함이라고 해야하나?

그리고 색감도 좀 더 화사하게 나오는 느낌이라 줌렌즈를 거의 봉인하고 있었다.


그러다가 어제 갑자기 떠오른 생각

좀 쨍하지 않은건 샤프니스 올리면 되지 않아?

기존 기억에는 색도 좀 오버스럽게 나왔던거 같아서 채도도 확 깎고 하니 그럴싸하게 나온다.

셋팅값은 아래와 같은데 

PC에서 비교해보니 콘트라스트와 채도를 -1 정도로 하는게 더 나을지도 모르겠다.

 샤프니스 

 2->4

 콘트라스트 

 0->-2

 채도 

 0->-2

 색조 

 0->0



요건 22mm 단렌즈


18-55mm 줌렌즈

저작자표시 (새창열림)

'하드웨어 > 캡쳐보드 카메라' 카테고리의 다른 글

로지텍 C920 H.264 지원 웹캠  (0) 2026.06.11
usb webcam 대역폭 에러  (0) 2024.05.09
HCVR5108-S2/-V2 USB wireless 실패  (0) 2018.02.15
Magewell Pro Capture SDI  (0) 2017.11.30
카메라 삼각대 나사 규격  (0) 2017.06.15
Posted by 구차니
하드웨어/캡쳐보드 카메라2018. 2. 15. 20:57

HCVR5108-S2/-V2 USB wireless 실패

아부지 댁에 DVR을 무선랜 통해서 접속시키려고 했더니

안.. 되... 네... ㅠㅠ


iptime N100mini 면 될거라고 대리점에 전화해서 확인했더니

(머 솔찍히 공식 홈페이지에도 HDD에 대한 호환성 목록만 확인가능)

영 안되네..


구버전이라 혹시나 해서 버전업 해보는데

그래도 안...되..네... ㅠㅠ


[링크 : http://kr.dahuasecurity.com/kr/firmware_111.html]

저작자표시 (새창열림)

'하드웨어 > 캡쳐보드 카메라' 카테고리의 다른 글

usb webcam 대역폭 에러  (0) 2024.05.09
eos-m 줌렌즈 픽쳐 스타일 설정  (0) 2018.06.24
Magewell Pro Capture SDI  (0) 2017.11.30
카메라 삼각대 나사 규격  (0) 2017.06.15
캐논 EXTENDER EF  (0) 2017.03.30
Posted by 구차니
하드웨어/캡쳐보드 카메라2017. 11. 30. 10:28

Magewell Pro Capture SDI

온도가 드럽게 높아서 

문의중

[링크 : http://jsdv.co.kr/]


이건.. 옆구리 따고 눕혀놓은 상태.. 80도 ㄷㄷㄷ


요건 세우고 뚜껑 닫은 상태.. 76도 근처


아무튼 여기서 상태 정보를 보면 동일 제품은 아니지만 76도..

FPGA가 온도 상한이 높다고 하지만.. 일반적인 IC가 이렇게 높으면

버텨주나...? 비디오 영상이 입력되던 안하던 76도 정도 유지 되는거 같은데..

여름에 쓸수 있는 녀석인가?

그리고 이녀석.. 윈도우가 안꺼지게 한다?!?!?! ㅠㅠ


[링크 : http://castware.co.kr/캡쳐-디바이스/]

'하드웨어 > 캡쳐보드 카메라' 카테고리의 다른 글

eos-m 줌렌즈 픽쳐 스타일 설정  (0) 2018.06.24
HCVR5108-S2/-V2 USB wireless 실패  (0) 2018.02.15
카메라 삼각대 나사 규격  (0) 2017.06.15
캐논 EXTENDER EF  (0) 2017.03.30
camera link에 대한 고찰 + grabber(캡쳐장비)  (0) 2017.03.10
Posted by 구차니
하드웨어/캡쳐보드 카메라2017. 6. 15. 09:16

카메라 삼각대 나사 규격

미국 표준을 따름


3/8" 혹은 1/4"


[링크 : http://itempage3.auction.co.kr/DetailView.aspx?itemno=A889580594]

[링크 : http://ideamate.co.kr/10184149939]



이게 그나마 가장 잘 나온듯

3/8-16 UNC

피치 1.5875 / 인치당 teeth 16 / 폭 9.525


[링크 : http://www.slrclub.com/bbs/vx2.php?id=common_forum&no=31715]


[링크 : http://www.sac-club.co.kr/xe/free/324333]


[링크 : http://starletzzang.blogspot.com/2014/03/unified-unc-unf.html]

'하드웨어 > 캡쳐보드 카메라' 카테고리의 다른 글

HCVR5108-S2/-V2 USB wireless 실패  (0) 2018.02.15
Magewell Pro Capture SDI  (0) 2017.11.30
캐논 EXTENDER EF  (0) 2017.03.30
camera link에 대한 고찰 + grabber(캡쳐장비)  (0) 2017.03.10
M72 마운트?  (0) 2017.03.10
Posted by 구차니
하드웨어/캡쳐보드 카메라2017. 3. 30. 14:12

캐논 EXTENDER EF

아부지가 또 이상한데 삘 받으신거 같은데...

일단 검색해보니..


텔레컨버터랑은 다르게, 렌즈와 바디 사이에 달리는거라 이런저런 제약이 잇고

기본적으로 L렌즈에 대응하는 단렌즈용 이라는 게 기본

* 대응렌즈 : 초점 거리 135mm 이상의 단초점 렌즈 (구매전 꼭 대응렌즈 전체를 확인하시기 바랍니다.) 


*1 Extender EF1.4 × III 사용시 AF 속도가 약 절반으로 느려질 수 있습니다.

*2 EOS-1v/HS, EOS-3, EOS-1Ds Mark III, EOS-1Ds Mark II/1Ds/1D Mark IV/1D Mark III/1D Mark II N/1D Mark II/1D를 사용하는 경우에만 중앙측거점에서만 AF가 가능합니다. 기타 EOS에서는 수동 초점입니다.

*3 멀티 포인트 측거의 EOS에 장착시, 중앙측거점만 AF 촬영이 가능합니다.

*4 손떨림 보정 가능한 카메라는 EOS-1V/HS, EOS-1Ds Mark III, EOS-1Ds Mark II/1Ds/1D Mark IV/1D Mark III/1D Mark II N/1D Mark II/1D, EOS 5D Mark II, EOS 5D, EOS 7D, EOS 60D, EOS 50D, EOS 40D, EOS 30D, EOS 20D, EOS 20Da, EOS 10D, EOS D60/D30, EOS 550D, EOS 500D, EOS 450D, EOS 400D, EOS 350D, EOS 300D, EOS D6000/D2000, EOS * DCS1 / 3입니다. 

[링크 : http://www.canon-ci.co.kr/product/EXT._EF1.4XIII/EF-lens/Extenders/content/NPAB796728]


*1 Extender EF2 × III 사용시 AF 속도가 약 1/4로 느려질 수 있습니다. 

[링크 : http://www.canon-ci.co.kr/product/EXT._EF2X_III/EF-lens/Extenders/content/NPAB796727]


그리고 카메라 기종과 모델에 따라 렌즈가 밝아야 AF가 되거나

AF가 되어도 AF 속도가 1/4로 떨어지거나

아예 AF자체가 불가능 하게 되는 경우도 존재하는 듯..

[링크 : http://support-kr.canon-ci.co.kr/contents/KR/KR/8201703800.html]

'하드웨어 > 캡쳐보드 카메라' 카테고리의 다른 글

Magewell Pro Capture SDI  (0) 2017.11.30
카메라 삼각대 나사 규격  (0) 2017.06.15
camera link에 대한 고찰 + grabber(캡쳐장비)  (0) 2017.03.10
M72 마운트?  (0) 2017.03.10
동영상 소프트웨어 IS 보정  (0) 2017.02.20
Posted by 구차니
하드웨어/캡쳐보드 카메라2017. 3. 10. 17:34

camera link에 대한 고찰 + grabber(캡쳐장비)

번역은..(망할 ctrl-c,v가 안되네!!!)

tap은 이미지 정보를 전송하는 데이터 경로이다. 한 픽셀의 디지털 정보는 모든 픽셀클럭과 함께 전송된다. 탭 넓이는 8,10 혹은 이상이 될수 있고 카메라에 의존한다.

몇몇 카메라는 속도를 늘리기 위해 복수개의 탭을 사용한다. 모든 탭에 픽셀 클럭은 공통으로 적용되기에 동일한 속도로 전송된다. 픽셀 클럭은 20~85MHz 범위를 지원한다.

2x8bit 라고 명기되면 8bit 픽셀 데이터가 2개의 평행한 탭을 통해 전송됨을 의미한다.


tap은 논리적이며 물리적이지 않다. 물리관점에서 데이터 신호는 FVAL LVAL DVAL SPARE 네개의 핸드쉐이킹 신호와 함께 멀티플렉싱 되며,  ...


잘 보면.. base mode는 24bit 데이터가 전송이 가능한데

이걸 어떻게 묶어서 보내냐가 바로 tap.

그래서 물리적인 채널과는 별개로 할당이 된다.

[링크 : http://www.machinevision.ca/files/Applications/AN021_e_V1_0_CameraLink.pdf]


전체는 필요 없고, base를 기준으로 보면

실제 물리적인 경로는 순서가 막 꼬여 있는데

아무튼 그런건 잘 모르겠고 대충 몇개를 묶어서 보내냐가 바로 tap!

그러니까.. 최소 8bit 이미지를 보내기에 24bit base 로는 3tap까지만 가능한 것

그래서 일부는 버려지는 비트들도 있도록 구성이 된다

(4tap * 10bit = 40bit < 48bit medium mode)



[링크 : https://en.wikipedia.org/wiki/Camera_Link]


아무튼.. 물리적으로는 TX에 28비트가 들어가고

24비트 + FVAL LVAL DVAL 에 spare로 총 28비트 라인이 구성된다.

[링크 : http://www.ti.com/lit/ds/symlink/ds90cr285.pdf]


카메라 링크의 구성은 아래와 같다는데.. spare는 어디로 도망간건가..?

[링크 : http://www.machinevision.ca/files/Applications/AN021_e_V1_0_CameraLink.pdf]


그리고 grabber 데이터 시트를 보면 Bandwidth to Host System이 185MB/s인데

PCI-Ex 1.0 x1 lane의 경우 250MB/s인데 그래버가 풀 대역폭을 쓸 수 없는 성능인듯


엑셀로 계산해보면 이렇게 가로해상도에만 영향을 받아서 1500x1080은 되는데 1920x1080은 안된다.


그런데 세로를 줄여도 1500 이하가 아니라면 안나오는건 똑같네..


+

[링크 : http://download.gemscriptor.com/Euresys/html/99963.htm]

'하드웨어 > 캡쳐보드 카메라' 카테고리의 다른 글

카메라 삼각대 나사 규격  (0) 2017.06.15
캐논 EXTENDER EF  (0) 2017.03.30
M72 마운트?  (0) 2017.03.10
동영상 소프트웨어 IS 보정  (0) 2017.02.20
camera link  (0) 2017.02.03
Posted by 구차니

티스토리툴바