Hi, I am trying to figure out how to rebuild the kernel to add a Wireless LAN driver (RTL8723AU specifically). Tried to follow the instructions here on the Jetson Orin Nano itself, which is on Tegra release R36 revision 4.4 and Linux jetson1 5.15.148-tegra per uname -a and /etc/nv_tegra_release. I downloaded https://developer.download.nvidia.com/embedded/L4T/r36_Release_v4.4/sources/public_sources.tbz2. Got stuck on the ./source_sync.sh step (there is no such script). Are there instructions anywhere on how to modify the kernel configuration with menuconfig and rebuild the kernel? I am able to run menuconfig and generate a .config file, but I am very unclear on what is the base version of the config that menuconfig is starting with - presumably that should be the config that was used to generate my current kernel - but where do I find that? I want to validate that my modification is only adding the new driver. Thanks!

As a follow up, what was behind my question was an attempt to set up an ad-hoc network on my Jetson Oren Nano. I was trying to do this with Panda PAU0F and was told by their support that I need to add MT76x0U driver (not RTL8723AU I mistakenly mentioned before). Unfortunately, I have not been able to successfully build a working driver (it complains of missing symbols). So, my follow up question is whether there is a recommended way to achieve the goal of setting up an ad-hoc network (perhaps with a different WiFi adapter). Thanks@

Adding a Wireless LAN driver to kernel

Robotics & Edge Computing Jetson Systems Jetson Orin Nano

DaneLLL July 14, 2025, 12:53am 3

Hi,
You may follow the steps to download the source code:

Kernel Customization — NVIDIA Jetson Linux Developer Guide

Here is an example of doing kernel customization:
No data from Joystick Logitech-f710 - #10 by DaneLLL

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Adding a Wireless LAN driver to kernel

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