Linux Kernel Module Programming Guide

Ori Pomerantz

Names of all products herein are used for identification purposes only and are trademarks and/or registered trademarks of their respective owners. I make no claim of ownership or corporate association with the products or companies that own them.

Copyright © 1999 Ori Pomerantz

Ori Pomerantz
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E-mail: [email protected]

The Linux Kernel Module Programming Guide is a free book; you may reproduce and/or modify it under the terms of version 2 (or, at your option, any later version) of the GNU General Public License as published by the Free Software Foundation. Version 2 is enclosed with this document at Appendix E.

This book is distributed in the hope it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose.

The author encourages wide distribution of this book for personal or commercial use, provided the above copyright notice remains intact and the method adheres to the provisions of the GNU General Public License (see Appendix E). In summary, you may copy and distribute this book free of charge or for a profit. No explicit permission is required from the author for reproduction of this book in any medium, physical or electronic.

Note, derivative works and translations of this document must be placed under the GNU General Public License, and the original copyright notice must remain intact. If you have contributed new material to this book, you must make the source code (e.g., L^ATEX source) available for your revisions. Please make revisions and updates available directly to the document maintainer, Ori Pomerantz. This will allow for the merging of updates and provide consistent revisions to the Linux community.

If you plan to publish and distribute this book commercially, donations, royalties, and/or printed copies are greatly appreciated by the author and the Linux Documentation Project. Contributing in this way shows your support for free software and the Linux Documentation Project. If you have questions or comments, please contact the address above.

• Contents
• Introduction
  • Who Should Read This
  • Note on the Style
  • Changes
    • New in version 1.0.1
    • New in version 1.1.0
  • Acknowledgements
    • For version 1.0.1
    • For version 1.1.0
• Hello, world
  • Makefiles for Kernel Modules
  • Multiple File Kernel Modules
• Character Device Files
  • Multiple Kernel Versions Source Files
• The /proc File System
• Using /proc For Input
• Talking to Device Files (writes and IOCTLs)
• Startup Parameters
• System Calls
• Blocking Processes
• Replacing printk's
• Scheduling Tasks
• Interrupt Handlers
  • Keyboards on the Intel Architecture
• Symmetrical Multi-Processing
• Common Pitfalls
• Changes between 2.0 and 2.2
• Where From Here?
• Goods and Services
  • Getting this Book in Print
• Showing Your Appreciation
• The GNU General Public License
• Index
• About this document ...