How to fix the UVC camera DEVICE ID

Jskim

Hi Support Team,

[This is an inquiry regarding a UVC camera.]
We are using the voxl-mini as shown below.

hw platform: M0104
voxl-suite: 1.4.5
SKU: TF-M0104-6-V1-C6
video codec(voxl-streamer): h.264
Web camera: uvc(YUY2) format

[Inquiry]

We are using a web camera.
The Device ID changes when the camera is turned back on (see figure below).

Therefore, we execute the command "systemctl restart voxl-uvc-server" every time.
Please tell me how to fix the Device ID.???

Thank you.
Kim.

Jskim

Hi Support team,

I would like to know how to resolve the issue regarding the DEVICE ID change.

Could you please provide a solution for the above?

e.g., Will creating a udev rule file resolve the issue?

Thank you.

Kim,

Alex Kushleyev

@Jskim , you should check dmesg to see maybe there are some warnings. Perhaps the device is not de-initialized properly (how are you powering it off?) and next time the OS allocates a new Device ID.

Either way, using udev rule should help resolve the issue, however make sure there is no resource leak as a result of the device on/off. Also, if you keep turning the device on/off, does the device ID increment indefinitely?

Alex

Jskim

The Device ID continues to increase.

We are using a webcam with a built-in SD card.
We switch between SD card mode and Webcam mode by pressing a button.
When power is supplied to the camera, SD card mode is set by default, and pressing the button switches it to Webcam mode.
The DEVICE ID number increases every time the camera is connected.

Thank you.
Kim