Welcome to FreeBSD Device Drivers! The goal of this book is to help you improve your understanding of device drivers under FreeBSD. By the time you finish this book, you should be able to build, configure, and manage your own FreeBSD device drivers.

This book covers FreeBSD version 8, the version recommended for production use as of this writing. Nonetheless, most of what you’ll learn will apply to earlier versions and should apply to later ones as well.