Zed mini not detected until replug

Hi,
When I boot my jetson agx xavier it’s not detecting zed mini camera but after removing the camera and plugging it back in, it starts to detect.

lsub after boot:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter Bus 001 Device 002: ID 2b03:f681 STEREOLABS ZED-M Hid Device Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

After replugging:
Bus 002 Device 002: ID 2b03:f682 Technologies, Inc. ZED-M Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter Bus 001 Device 004: ID 2b03:f681 STEREOLABS ZED-M Hid Device Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Jetson Agx Xavier (JetPack 5.0.2)
Zed Mini (SDK 3.8.1)
Using usb c port on xavier and I know ZED Mini Type-C connector is NOT reversible .

Hi @Mekala02
if you connect to the typeC port of the xavier, you won’t have the issue as the typeC to typeC works in both direction.
However you can try to use this tool to reset the USB controller and re-initialized the camera after the boot:

Simple tool to perform a USB power cycle on Jetson Nano/NX devkit
I’m using AGX Xavier so it’s not working

I found that reboot() function fixes this issue on ZED2

But I can’t use that function with zed mini as mentioned in api referance:

https://www.stereolabs.com/docs/api/python/classpyzed_1_1sl_1_1Camera.html#a3b8ebb0f00ca71636407170780720281

Note
This function only works for ZED2 and ZED2i cameras.

Why reboot function not working with zed mini.

I can’t find any other solution to fix this issue which is really annoying, every time i reboot the device i have to manually unplug and replug the camera.

@Myzhar

I’m sorry, but the ZED Mini is not equipped with the electronic circuit required by the restart API function to work.
The USB power trick is the only working solution for ZED Mini.

Then how can I do the USB power trick on jetson agx xavier ?

You must get information about the usb controller used on the devkit and apply it to the tool that I linked

How can I find usb controller information ?

lsusb -v output:

Bus 002 Device 002: ID 2b03:f682 Technologies, Inc. ZED-M
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               3.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0         9
  idVendor           0x2b03
  idProduct          0xf682
  bcdDevice            1.00
  iManufacturer           1
  iProduct                2
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0150
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              512mA
    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               1.10
        wTotalLength       0x004f
        dwClockFrequency      150.000000MHz
        bInCollection           1
        baInterfaceNr( 0)       1
      VideoControl Interface Descriptor:
        bLength                18
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             1
        wTerminalType      0x0201 Camera Sensor
        bAssocTerminal          0
        iTerminal               0
        wObjectiveFocalLengthMin      0
        wObjectiveFocalLengthMax      0
        wOcularFocalLength            0
        bControlSize                  3
        bmControls           0x00000000
      VideoControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             2
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bSourceID               4
        iTerminal               0
      VideoControl Interface Descriptor:
        bLength                13
        bDescriptorType        36
        bDescriptorSubtype      5 (PROCESSING_UNIT)
        bUnitID                 3
        bSourceID               1
        wMaxMultiplier          0
        bControlSize            3
        bmControls     0x00003eff
          Brightness
          Contrast
          Hue
          Saturation
          Sharpness
          Gamma
          White Balance Temperature
          White Balance Component
          Gain
          Power Line Frequency
          Hue, Auto
          White Balance Temperature, Auto
          White Balance Component, Auto
        iProcessing             2
        bmVideoStandards     0x00
      VideoControl Interface Descriptor:
        bLength                26
        bDescriptorType        36
        bDescriptorSubtype      6 (EXTENSION_UNIT)
        bUnitID                 4
        guidExtensionCode         {2ccb0bda-6331-4fdb-850e-79054dbd5671}
        bNumControl             2
        bNrPins                 1
        baSourceID( 0)          3
        bControlSize            1
        bmControls( 0)       0x03
        iExtension              2
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x86  EP 6 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               9
        bMaxBurst               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           1
      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                   0x00bf
        bEndPointAddress                  129
        bmInfo                              0
        bTerminalLink                       2
        bStillCaptureMethod                 0
        bTriggerSupport                     0
        bTriggerUsage                       0
        bControlSize                        1
        bmaControls( 0)                     0
      VideoStreaming Interface Descriptor:
        bLength                            27
        bDescriptorType                    36
        bDescriptorSubtype                  4 (FORMAT_UNCOMPRESSED)
        bFormatIndex                        1
        bNumFrameDescriptors                4
        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                            38
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         1
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           2560
        wHeight                           720
        dwMinBitRate                442368000
        dwMaxBitRate                1769472000
        dwMaxVideoFrameBufferSize     3686400
        dwDefaultFrameInterval         166666
        bFrameIntervalType                  3
        dwFrameInterval( 0)            166666
        dwFrameInterval( 1)            333333
        dwFrameInterval( 2)            666666
      VideoStreaming Interface Descriptor:
        bLength                            42
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         2
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           1344
        wHeight                           376
        dwMinBitRate                121282560
        dwMaxBitRate                808550400
        dwMaxVideoFrameBufferSize     1010688
        dwDefaultFrameInterval         100000
        bFrameIntervalType                  4
        dwFrameInterval( 0)            100000
        dwFrameInterval( 1)            166666
        dwFrameInterval( 2)            333333
        dwFrameInterval( 3)            666666
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         3
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           3840
        wHeight                          1080
        dwMinBitRate                995328000
        dwMaxBitRate                1990656000
        dwMaxVideoFrameBufferSize     8294400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666666
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         4
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                           4416
        wHeight                          1242
        dwMinBitRate                1316321280
        dwMaxBitRate                1316321280
        dwMaxVideoFrameBufferSize    10969344
        dwDefaultFrameInterval         666666
        bFrameIntervalType                  1
        dwFrameInterval( 0)            666666
      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))
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst              15