From owner-freebsd-questions Tue Sep 2 05:57:42 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id FAA04920 for questions-outgoing; Tue, 2 Sep 1997 05:57:42 -0700 (PDT) Received: from isgate.is (isgate.is [193.4.58.51]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id FAA04915 for ; Tue, 2 Sep 1997 05:57:37 -0700 (PDT) Received: from eh.est.is (eh.est.is [194.144.208.34]) by isgate.is (8.7.5-M/) with ESMTP id MAA26733 for ; Tue, 2 Sep 1997 12:57:22 GMT Received: from didda.est.is (totii@ppp-19.est.is [194.144.208.119]) by eh.est.is (8.8.5/8.8.5) with SMTP id MAA18104 for ; Tue, 2 Sep 1997 12:57:22 GMT Message-ID: <340C0D00.41C67EA6@est.is> Date: Tue, 02 Sep 1997 12:56:32 +0000 From: =?iso-8859-1?Q?=DEor=F0ur?= Ivarsson X-Mailer: Mozilla 3.01 (X11; I; FreeBSD 2.2.2-RELEASE i386) MIME-Version: 1.0 To: questions@freebsd.org Subject: How to write device driver ? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Can any of you help me with writing device driver for two cards i have here on my desk. I have all documents and API information for the cards. One is AD converter 8input 12bit + 1 DA 12bit and the other is digital IO card with 6 8bit ports and timer IO I heard of something like /dev/IO but I did not find any information about writing interface to it. Thordur Ivarsson totii@est.is