【jetson】About /dev/videoX，how to set a specified value of X？

Robotics & Edge Computing Jetson Systems Jetson Orin Nano
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How to specify the value of X of/dev/videoX when developing and registering a sensor device in the Nvidia software framework?

I know how to use the v4l2 interface video_register_device(struct video_device *vdev,enum vfl_devnode_type type,int nr) When setting the parameter nr>=0, it is possible to specify the value of X for videoX as nr, but Nvidia’s software framework uses tegracam_device_degister. So how should we specify the value of X?

How does Nvidia’s software framework call the video_degister_device interface?

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The nvidia sdk version is Jetpack 6.2（R36.4.3）

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Hi,
video_register_device() is supposed to work. Please give it a try.

Several relevant topics:
Multiple nodes/instances while running IMX477 usb cam on Xavier NX - #5 by JerryChang
How to load /dev/video* starting with RGB camera - #2 by ShaneCCC

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