Book Image

Linux Device Driver Development - Second Edition

By : John Madieu
Book Image

Linux Device Driver Development - Second Edition

By: John Madieu

Overview of this book

Linux is by far the most-used kernel on embedded systems. Thanks to its subsystems, the Linux kernel supports almost all of the application fields in the industrial world. This updated second edition of Linux Device Driver Development is a comprehensive introduction to the Linux kernel world and the different subsystems that it is made of, and will be useful for embedded developers from any discipline. You'll learn how to configure, tailor, and build the Linux kernel. Filled with real-world examples, the book covers each of the most-used subsystems in the embedded domains such as GPIO, direct memory access, interrupt management, and I2C/SPI device drivers. This book will show you how Linux abstracts each device from a hardware point of view and how a device is bound to its driver(s). You’ll also see how interrupts are propagated in the system as the book covers the interrupt processing mechanisms in-depth and describes every kernel structure and API involved. This new edition also addresses how not to write device drivers using user space libraries for GPIO clients, I2C, and SPI drivers. By the end of this Linux book, you’ll be able to write device drivers for most of the embedded devices out there.
Table of Contents (23 chapters)
Section 1 -Linux Kernel Development Basics
Section 2 - Linux Kernel Platform Abstraction and Device Drivers
Section 3 - Making the Most out of Your Hardware
Section 4 - Misc Kernel Subsystems for the Embedded World

Section 1 -Linux Kernel Development Basics

This section helps you make your first step into Linux kernel development. Here, we introduce the Linux kernel infrastructure (its structure and its build system), its compilation, and device driver development. As a mandatory step, we introduce the most used concepts kernel developers must know, such as sleeping, locking, basic work scheduling, and interrupt handling mechanisms. Last, we introduce the indispensable character device drivers, allowing interactions between kernel space and user space, via either standard system calls or an extended set of commands.

The following chapters will be covered in this section:

  • Chapter 1, Introduction to Kernel Development
  • Chapter 2, Understanding Linux Kernel Module Basic Concepts
  • Chapter 3, Dealing with Kernel Core Helpers
  • Chapter 4, Writing Character Device Drivers