The Linux Kernel Module Programming Guide

REF: http://www.faqs.org/docs/kernel/

Peter Jay Salzman
Ori Pomerantz

Copyright © 2001 Peter Jay Salzman

2003-04-04 ver 2.4.0

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Table of Contents

Foreword

1. Acknowledgements

2. Nota Bene

1. Introduction

1.1. What Is A Kernel Module?

1.2. How Do Modules Get Into The Kernel?

2. Hello World

2.1. Hello, World (part 1): The Simplest Module

2.2. Compiling Kernel Modules

2.3. Hello World (part 2)

2.4. Hello World (part 3): The __init and __exit Macros

2.5. Hello World (part 4): Licensing and Module Documentation

2.6. Passing Command Line Arguments to a Module

2.7. Modules Spanning Multiple Files

3. Preliminaries

3.1. Modules vs Programs

4. Character Device Files

4.1. Character Device Drivers

5. The /proc File System

5.1. The /proc File System

6. Using /proc For Input

6.1. Using /proc For Input

7. Talking To Device Files

7.1. Talking to Device Files (writes and IOCTLs)}

8. System Calls

8.1. System Calls

9. Blocking Processes

9.1 . Blocking Processes

10. Replacing Printks

10.1. Replacing printk

11. Scheduling Tasks

11.1. Scheduling Tasks

12. Interrupt Handlers

12.1. Interrupt Handlers

13. Symmetric Multi Processing

13.1. Symmetrical Multi-Processing

14. Common Pitfalls

14.1. Common Pitfalls

A. Changes: 2.0 To 2.2

A.1. Changes between 2.0 and 2.2

B. Where To Go From Here

B.1. Where From Here?

Index

List of Examples

2-1. hello-1.c

2-2. Makefile for a basic kernel module

2-3. hello-2.c

2-4. Makefile for both our modules

2-5. hello-3.c

2-6. hello-4.c

2-7. hello-5.c

2-8. start.c

2-9. stop.c

2-10. Makefile for a multi-filed module

4-1. chardev.c

4-2. some title

5-1. procfs.c

6-1. procfs.c

7-1. chardev.c

7-2. chardev.h

7-3. ioctl.c

8-1. procfs.c

9-1. sleep.c

10-1. print_string.c

11-1. sched.c

12-1. intrpt.c

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