MIPI CSI-2 Camera not creating a video node. I2C works well and programs the camera

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
1

Hello there;

I have an OV9284 sensor. It is very similar to OV9281, in fact when I read the ID registers I get 9281. This sensor is on a custom board which is then connected to the AGX XAVIER camera input. I know the I2C works because when I run i2cdetect command I can see my I2C and I have used a Python script (smbus library) to write and read the camera’s registers. I can see that my camera is streaming and sending MIPI signals over but on the XAVIER I can not detect the camera. When I run any v4l2 command or any gstreamer command, it says no camera was found. When I do ls /dev/video*, again it tells me No such file or directory. I am fairly new to all of this so I am not sure where to go from here.

Any help is appreciated.

3

Did you integrate the driver and device tree?

https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/camera_sensor_prog.47.1.html#wwconnect_header

4

I don’t believe so. I am going to read this link you sent me and find out how to integrate the driver and device tree and will get back to you.

5

By integrating the driver do you mean the V4L2 driver? Should I refer to the “V4L2 Kernel Driver (Version 2.0)” section of the link you sent me? I am very new to all of this so this is a little difficult for me to understand.

6

Yes, v4l2 sensor driver.
I would suggest to consult with vendor if have the driver would be easier.

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