From owner-freebsd-hackers@FreeBSD.ORG  Wed Aug 10 03:08:19 2005
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
X-Original-To: freebsd-hackers@freebsd.org
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 5729D16A41F
	for <freebsd-hackers@freebsd.org>; Wed, 10 Aug 2005 03:08:19 +0000 (GMT)
	(envelope-from imp@bsdimp.com)
Received: from harmony.bsdimp.com (vc4-2-0-87.dsl.netrack.net [199.45.160.85])
	by mx1.FreeBSD.org (Postfix) with ESMTP id BE878444D2
	for <freebsd-hackers@freebsd.org>; Tue,  9 Aug 2005 22:48:21 +0000 (GMT)
	(envelope-from imp@bsdimp.com)
Received: from localhost (localhost.village.org [127.0.0.1] (may be forged))
	by harmony.bsdimp.com (8.13.3/8.13.3) with ESMTP id j79Mkvwj049323;
	Tue, 9 Aug 2005 16:46:57 -0600 (MDT) (envelope-from imp@bsdimp.com)
Date: Tue, 09 Aug 2005 16:46:59 -0600 (MDT)
Message-Id: <20050809.164659.115908116.imp@bsdimp.com>
To: dgilbert@dclg.ca
From: "M. Warner Losh" <imp@bsdimp.com>
In-Reply-To: <17145.8001.349961.334759@canoe.dclg.ca>
References: <17145.469.365833.447736@canoe.dclg.ca>
	<20050809.150845.71119932.imp@bsdimp.com>
	<17145.8001.349961.334759@canoe.dclg.ca>
X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI)
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0
	(harmony.bsdimp.com [127.0.0.1]);
	Tue, 09 Aug 2005 16:46:57 -0600 (MDT)
Cc: freebsd-hackers@freebsd.org
Subject: Re: Bluetooth GPS for timekeeping?
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 10 Aug 2005 03:08:19 -0000

In message: <17145.8001.349961.334759@canoe.dclg.ca>
            David Gilbert <dgilbert@dclg.ca> writes:
: >>>>> "Warner" == Warner Losh <imp@bsdimp.com> writes:
: 
: Warner> You'd likely be money ahead by using a simpler, wired GPS
: Warner> receiver directly into a legacy serial port.
: 
: Heh.  But I don't have one of those.  You see, this was just a hey
: ... I have this ... and it's not currently in use... so it could have
: a cool second life ... type project.
: 
: I suppose what you're saying is that to get accurate time ... since
: bluetooth has the characteristics of a "network" that there would have
: to be a somewhat sophisticated NTP over bluetooth protocol.  Heh.

If all you care about is millisecond accuracy, it may be sufficient.

Warner