From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 28 Aug 2001 16:09:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 28 Aug 2001 16:09:20 -0400 Received: from tmhoyle.gotadsl.co.uk ([195.149.46.162]:44553 "EHLO mail.cvsnt.org") by vger.kernel.org with ESMTP id ; Tue, 28 Aug 2001 16:09:01 -0400 From: "Tony Hoyle" Subject: Treating parallel port as serial device Date: Tue, 28 Aug 2001 21:09:12 +0100 Organization: Magenta netLogic Message-ID: <9mgtpb$mf4$1@sisko.my.home> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Trace: sisko.my.home 999029355 23012 192.168.100.2 (28 Aug 2001 20:09:15 GMT) X-Complaints-To: abuse@cvsnt.org User-Agent: Pan/0.10.0 (Unix) X-Comment-To: ALL X-No-Productlinks: Yes To: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I'm looking to attach a serial device to my box that has only TTL level I/O. Since I'm more of a software than a hardware person making a circuit board up with a max232 in is a bit risky... I want to connect the I/O to the parallel port. What I need now is a driver that can read the input from a pin on the parallel port and treat it as serial input. It sounds like the kind of project that would have been done before, but I can't find anything that even comes close. Userspace probably wouldn't cut it as I'm reading as 9600 baud and usleep doesn't have nearly enough resolution. Tony -- Microsoft - two out of three dead people who expressed a preference said their coffins preferred it. tmh@nothing-on.tv http://www.nothing-on.tv