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Date: Thu, 31 Aug 1995 14:11:37 -0500
From: "Daniel M. Eischen" <deischen@iworks.InterWorks.org>
To: gatliff@cel.cummins.com, questions@freebsd.org
Subject: Re:  Driver creation clue needed
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>I'm planning to write a driver for a do-hickey that connects
>to my PC's printer port or uses an i/o card (ISA).
>
>Can anyone point me to some tutorial info on how to write
>drivers for FreeBSD?

Take a look at the source code for varous ISA drivers in sys/i386/isa.
Also get the book, "The Design and Implementation of the 4.3BSD UNIX
Operating System" by Leffler, McKusick, Karels, and Quarterman
published by Addison-Wesley.

Dan Eischen
deischen@iworks.InterWorks.org