obj-m += hello.o KDIR := /lib/modules/$(shell uname -r)/build PWD := $(shell pwd)

: This is the classic "Hello World" for the kernel. It’s been updated for modern 5.x and 6.x kernels and can be found as a live web guide or PDF Linux Kernel Development (3rd Edition) by Robert Love

books/Linux Kernel Development, 3rd Edition.pdf at master - GitHub

: If you want to move beyond modules and compile the entire kernel, refer to guides like the Rocky Linux Kernel Customization Guide for step-by-step instructions on targets and identification strings. Linux Kernel Docs "Hello World" kernel module template to start your first compilation? The Linux Kernel Module Programming Guide - GitHub Pages

For those interested in learning Linux kernel programming, there are several excellent PDF resources available: