How to build a custom v4l2 driver as a module in 24.1

Autonomous Machines Jetson & Embedded Systems Jetson TX1
1

Dear all,

I spent some days on this issue but look like the menuconfig in this release is so complicated. I want to build my own v4l2 driver (same as OV5693) so I tried to modify the .config file, then I got imx135_v4l2.ko (this is my module) and tegra_camera module.

As I understand, the tegra_camera will use vi2_probe function to call to v4l2 driver probe. But I can not link vi2_probe to my own v4l2 driver, if I define CONFIG_SOC_CAMERA_PLATFORM it will link to virtual hardware, if I didn’t define CONFIG_SOC_CAMERA_PLATFORM nothing happen.

Thanks

2

Suggest to move to r24.2 to follow the document from below link and reference to the “Sensor Driver Programming Guide” chapter to bring up your sensor.

3

Check the V4L2 chapter in the L4T Documentation that you can download from Jetson Download Center | NVIDIA Developer

I would suggest you to move to media controller in R24.2. If you are using soc_camera, when loading the modules are you running similar steps to these? Toshiba TC358743 Linux driver for Jetson TX1 - RidgeRun Developer Connection

Do you see the module mounted after running lsmod?

4

Hi DavidSoto,

After many modifications, I can insmod my own custom camera module on R24.1. I will move to R24.2 soon.

Thanks

5

Hi, that is great. We had some problems related to framerate in the past when using soc_camera, that is why I recommend media controller. Good job getting it working