Failed to build ADI kernel for Raspberry PI.

Hi,

Sorry for late response.

I would like to ask you if you replaced the kernel too or just the modules.

Can you please check what's the output of "uname -a" and "ls -al /lib/modules"?

This is the first time for me to modify the kernel, so I don't know much about it. One thing I can say is that I followed the instructions exactly.

I tried to type in a command to check the name, but the Raspy failed to boot, I couldn't connect to ssh, and the keyboard didn't respond when I connected to the display.

If you replace only the kernel image with the initial one, it will boot as usual. The output is shown below.

The problem is that modules for rpi-4.19.y are not installed.

When Linux boots it checks the version of the kernel and after that tries to load the corresponding modules for that specific kernel version.

In your case the ADI kernel should be something like 4.19 but as it can be seen in the output of the "ls" command you have modules on SD card only for 5.4.79 version.

The "export KERNEL_MODULES_PATH=kernel_modules_location" should be adapted to your requirements. For example insert SD card in PC, check where it does gets mounted and point the KERNEL_MODULES_PATH variable there.

Can be something like: /run/media/rootfs but it greatly depends on your Linux distro.

In the end you should get another folder on SD card in /lib/modules with modules for 4.19 adi kernel.

After you have that you can copy the ADI kernel on SD card and that should be all. 

I have successfully loaded the camera by replacing the kernel to 4.19 and cross-compiling.
However, I am having a small problem.
It returns "fopen() failed. Error: Permission denied" and I can't read the camera properly.
This problem can be solved by using the sudo command.
Please let me know if there is a solution.

The problem is that EEPROM is read using sysfs interface provided by AT24 driver.

In order to avoid running your program with sudo you have to add an UDEV rule to allow your user access to the sysfs eeprom data.

Please have a look here: github.com/.../udev-rules-install.cmake 

Thank you for suggesting a solution to this problem.

I tried to browse the web page, but the page seems to be missing. (404 not found)

Can you please provide a new link?

Files location has changed and that's why the link above doesn't work anymore. Here is the updated link:

https://github.com/analogdevicesinc/aditof_sdk/blob/v2.0.0/cmake/udev-rules-install.cmake

-Dan