Image Sensor Driver Development - Jetson Xavier NX

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
1

Hi all!

I am currently on the process of trying to develop my own camera driver. The camera in question is a security camera using the IMX290 sensor and I would like to, through an adapter board, connect it to the Jetson through CSI-MIPI.

So, after having analysed the existing drivers source code for L4T and the documentation for camera development, I would like to know what are the minimum methods/functions I need to implement on this first “prototype”. There are some obvious ones, but the drivers for the other sensors have a lot of functions implemented.

Also, do you have any advice for someone with not much experience in this kind of stuff?

Thanks!!

3

Have a check this document.

https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/camera_sensor_prog.html#wwpID0E0Q50HA

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4

Thanks for your reply. That is the documentation I am using. But I see you have pointed to a specific part of the docs, “Device Properties”, which is about the device-tree files, right? So, does that mean that I only need to develop a dtsi file for my camera?

5

OOPS, please check the programing guide to implement the dts and .c kernel driver.

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6

Oh, ok! Thank you once again. Another question I have is: do i need the IMX290 datasheet only, or also the “complete” camera datasheet? Because when I look at the IMX290 datasheet from SONY, I can’t find much regarding addresses, registers and other information that is present in the .c kernel driver files for other sensors

7

You need to get the sensor mode tables for configure the output correct data to MIPI bus.

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8

Ok! Thank you!