From owner-freebsd-current Tue Mar 28 17:29:41 2000 Delivered-To: freebsd-current@freebsd.org Received: from mass.cdrom.com (mg134-189.ricochet.net [204.179.134.189]) by hub.freebsd.org (Postfix) with ESMTP id E13D137B61D for ; Tue, 28 Mar 2000 17:29:31 -0800 (PST) (envelope-from msmith@mass.cdrom.com) Received: from mass.cdrom.com (localhost [127.0.0.1]) by mass.cdrom.com (8.9.3/8.9.3) with ESMTP id RAA03201; Tue, 28 Mar 2000 17:33:13 -0800 (PST) (envelope-from msmith@mass.cdrom.com) Message-Id: <200003290133.RAA03201@mass.cdrom.com> X-Mailer: exmh version 2.1.1 10/15/1999 To: "David E. Cross" Cc: freebsd-current@freebsd.org Subject: Re: Major # please :) In-reply-to: Your message of "Tue, 28 Mar 2000 19:45:04 EST." <200003290056.TAA86382@cs.rpi.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Tue, 28 Mar 2000 17:33:13 -0800 From: Mike Smith Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Meaning no offense, but I can't think of a single good reason to write a device driver for one of these cards. (Unless you're trying to do pattern generation, and an 8255 is a terrible choice for that.) Worse than that though, there's _no_ standard for these cards' implementation, so a driver isn't going to be even vageuly portable. Use i386_set_ioperm() and just bit-bash it in userspace. > I am just about finished with a device driver for PCI DIO boards based > around the 8C255 (number may be wrong ;). Specifically this is for the > ComputerBoards DIO-24H DIO board. I have been using the 'development' major > #, and I am ready to go about getting it committed into the CVS tree for > whoever else may find it of use. > > Currently the system is used in conjunction with a home-brew card-access > system, but future could include robotics and related fields. -- \\ Give a man a fish, and you feed him for a day. \\ Mike Smith \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message