Poster of Linux kernelThe best gift for a Linux geek
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Greg's Introduction

It seems like a long time ago that I picked up the first edition of this Linux Device Drivers book in order to figure out how to write a real Linux driver. That first edition was a great guide to helping me understand the internals of this operating system that I had already been using for a number of years but whose kernel had never taken the time to look into. With the knowledge gained from that book, and by reading other programmers' code already present in the kernel, my first horribly buggy, broken, and very SMP-unsafe driver was accepted by the kernel community into the main kernel tree. Despite receiving my first bug report five minutes later, I was hooked on wanting to do as much as I could to make this operating system the best it could possibly be.

I am honored that I've had the ability to contribute to this book. I hope that it enables others to learn the details about the kernel, discover that driver development is not a scary or forbidding place, and possibly encourage others to join in and help in the collective effort of making this operating system work on every computing platform with every type of device available. The development procedure is fun, the community is rewarding, and everyone benefits from the effort involved.

Now it's back to making this edition obsolete by fixing current bugs, changing APIs to work better and be simpler to understand for everyone, and adding new features. Come along; we can always use the help.

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    Poster of Linux kernelThe best gift for a Linux geek