kernel_module_learn/README.md

Setup env

On NixOS: - Ensure Linux Kernel is the same as you configuration. Otherwise, change linux_dev variable with you kernel variant and change flake.lock nixpkgs with your version. - Use direnv allow or nix develop to setup shell.

On other distro - You need to setup LINUX_MODULES_FOLDER to linux modules folder of your distro (ex: /lib/modules/$(uname -r)/build) -

make : targets list

• all : Compiling kernel
• clean : Cleaning build folder

All subfolder is configured to use LINUX_MODULES_FOLDER env variable set by flake develop

How test module

Step 1: Load module

sudo insmod [module_name].ko

Warning: Can fail if secure boot is enabled

Step 2: Check logs

sudo dmesg | tail

Step 3: Unload module

sudo rmmod [module_name].ko