A free, open-source book titled 'FreeBSD Device Drivers: From First Steps to Kernel Mastery' (v2.0, April 2026) by FreeBSD committer Edson Brandi. The 4,500+ page, 38-chapter book takes complete beginners from UNIX and C fundamentals all the way through writing, debugging, and submitting production-quality FreeBSD 14.x device drivers. Topics covered include character drivers, PCI, interrupts, DMA, USB, network drivers, concurrency, debugging, and upstream contribution workflows. Available free under MIT license in English, Brazilian Portuguese, and Spanish (PDF, EPUB, HTML).
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About This BookWhy This Book?Who This Book Is ForWho This Book Isn't ForWhat You'll LearnBook StatsFull Table of ContentsHow to Read the BookDownload the BookRepository StructureContributingFrequently Asked QuestionsAbout the AuthorLicenseAcknowledgementsLinksSort: