provides a companion PDF for those who have purchased the book, along with all the source code used in the text. It covers the 5.4 LTS kernel internals, including memory management and CPU scheduling. Linux-insides : A popular "book-in-progress" available on GitHub

This is the "Hello World" of kernel development. Originally a classic PDF, it has been modernized and is actively maintained on GitHub. It covers everything from creating your first module to handling /proc files and ioctls. Absolute beginners.

Search GitHub for "kernel programming" "chatgpt prompts" to find these experimental resources.

This guide is actively maintained and available as a free PDF. It teaches you how to write your first "Hello, World" kernel module, handle character devices, and manage concurrency with mutexes and spinlocks.