Understanding the kernel means understanding its massive scale. Approximately 60% of the kernel consists of drivers , while only about 14% is the "core"

: Focuses on the basics of building the kernel from source, kernel architecture, and memory management.

Learning Linux kernel programming can be beneficial for several reasons:

Linux Device Drivers, 3rd Edition (LDD3)

The ultimate goal of reading these PDFs is to contribute to the Linux kernel mailing list (LKML). Once you have absorbed the content from the repositories above, try this workflow:

Mastering the art of Linux kernel programming requires a blend of deep theoretical knowledge and hands-on experimentation. For many developers, GitHub has become the ultimate repository for high-quality, free, and open-source educational materials, including comprehensive PDFs and interactive code examples. 1. Essential High-Quality GitHub Resources