Why Read This Book

You will learn how the Linux Driver Model actually works by building real, production-style drivers rather than just reading theory. The book is especially valuable if you want to move from basic kernel concepts to writing char, platform, I²C, NIC, and block drivers that fit cleanly into modern Linux systems. You will come away with a practical understanding of how hardware and software connect in the kernel, which is essential for embedded Linux and device bring-up work.

Who Will Benefit

Embedded Linux engineers, firmware developers, and kernel programmers who already know the basics of C and Linux and want to write production-grade device drivers for real hardware.

Level: Advanced — Prerequisites: Strong C programming, Linux command-line proficiency, familiarity with kernel/module basics, and a working understanding of embedded hardware concepts such as memory-mapped I/O, interrupts, and buses like I²C/SPI.

Key Takeaways

• Understand the Linux Driver Model and how it organizes devices, drivers, and buses
• Implement production-grade character drivers with proper resource management
• Write platform and I²C drivers that integrate cleanly with kernel subsystems
• Develop network interface and block drivers with kernel-facing best practices
• Debug driver behavior using kernel logs, probes, and standard Linux diagnostics
• Apply device-tree and hardware-software interface concepts to embedded Linux development

Topics Covered

1. Introduction to the Linux Driver Model
2. Kernel Module Foundations and Driver Anatomy
3. Character Device Drivers
4. Platform Drivers and Device Tree Integration
5. I²C Driver Development
6. Network Interface Controller (NIC) Drivers
7. Block Device Drivers
8. Interrupts, Concurrency, and Synchronization
9. Memory Management and User-Kernel Data Exchange
10. Power Management and Runtime PM
11. Debugging, Tracing, and Driver Diagnostics
12. Testing and Hardening for Production Use
13. Driver Packaging, Deployment, and Maintenance

Languages, Platforms & Tools

How It Compares

Covers similar ground to Linux Device Drivers by Corbet, Rubini, and Kroah-Hartman, but with a more hands-on, production-focused emphasis on modern driver classes and LDM.