Hmm you're right, now I'm sure I have to be misremembering the book I intended to link, there certainly was a chapter on user space drivers which was of course

Hmm you're right, now I'm sure I have to be misremembering the book I intended to link, there certainly was a chapter on user space drivers which was of course more digestible compared to LDD. > a printer class driver is not the worst exercise Maybe that's why it's a good introductory to kernel drivers programming? Some friends back in school were tasked the exact same thing (implement usblp 'from scratch').