From owner-freebsd-usb@FreeBSD.ORG  Sun Oct 11 09:23:55 2009
Return-Path: <owner-freebsd-usb@FreeBSD.ORG>
Delivered-To: freebsd-usb@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 6F3B2106566B
	for <freebsd-usb@freebsd.org>; Sun, 11 Oct 2009 09:23:55 +0000 (UTC)
	(envelope-from sven@hazejager.nl)
Received: from chainsoftware.nl (tunnel655.ipv6.xs4all.nl
	[IPv6:2001:888:10:28f::2])
	by mx1.freebsd.org (Postfix) with ESMTP id 071628FC0C
	for <freebsd-usb@freebsd.org>; Sun, 11 Oct 2009 09:23:54 +0000 (UTC)
Received: from chainsoftware.nl (localhost [127.0.0.1])
	by chainsoftware.nl (8.14.3/8.14.3) with ESMTP id n9B9NrgH023993
	for <freebsd-usb@freebsd.org>; Sun, 11 Oct 2009 11:23:54 +0200 (CEST)
	(envelope-from sven@hazejager.nl)
Received: from localhost (sven@localhost)
	by chainsoftware.nl (8.14.3/8.14.3/Submit) with ESMTP id n9B9Nr88023990
	for <freebsd-usb@freebsd.org>; Sun, 11 Oct 2009 11:23:53 +0200 (CEST)
	(envelope-from sven@hazejager.nl)
X-Authentication-Warning: proxy.chain.loc: sven owned process doing -bs
Date: Sun, 11 Oct 2009 11:23:53 +0200 (CEST)
From: Sven Hazejager <sven@hazejager.nl>
To: freebsd-usb@freebsd.org
Message-ID: <0910111122164F.-1077952704@somehost.domainz.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
X-Spam-Status: No, hits=-3.977 tests=ALL_TRUSTED,BAYES_00
X-Scanned-By: MIMEDefang 2.64 on 192.168.0.1
Subject: Simple manner to read 1-pin high/low from USB under FBSD?
X-BeenThere: freebsd-usb@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: FreeBSD support for USB <freebsd-usb.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
	<mailto:freebsd-usb-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-usb>
List-Post: <mailto:freebsd-usb@freebsd.org>
List-Help: <mailto:freebsd-usb-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
	<mailto:freebsd-usb-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 11 Oct 2009 09:23:55 -0000

Hi all,

I'm using a simple circuit to read led pulses from my electricity meter 
and am now using simple C code to poll the parallel port to detect a 
high/low change on pin 12. (see http://offog.org/code/electricity.html)

My new server probably won't have a parallel port anymore. So the question 
is: is there a simple manner to read 1-pin high/low from USB under FBSD? 
Any examples anywhere?

Thanks!
Sven