Jetson RT-patch headers - EtherCAT use case not working

[shir1]

Hi,

After applying the RT-patch solution - see here, I was trying to install an EtherCAT package without success.

The package is IgH-EtherCAT (EtherLAB), and it works fine on a clear install of JetPack 5.1.1 using SDK manager without RT-patch.
There is an old issue which I was not able to extract any clear actions from it, but it deals with the same problem.

After several attempts, it came down to installing the RT headers.
My question is - how do I build the RT headers and get similar output to the ones extracted from “kernel_headers.tbz2” during “apply_binaries.sh” ?

Thank you

[DaveYYY]

Hi,

another user had a similar issue last month as you:

Jetpack 5.1 - Real-time kernel and modules

I’m trying to get the correct steps to compile a working real-time kernel for my Jetson NX and I want to compile a networking module (8821cu) on-board eventually. As reference I’m following the instructions here (Kernel Customization — Jetson Linux Developer Guide documentation) and the commands posted here (No display with PREEMPT_RT patches) that are sometimes linked in other similar threads. The commands are the same but the last one, where I use: sudo tools/l4t_create_default_user.sh -u …

We are still waiting for the developer team to give a solution on it.