From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261398AbVHASLY (ORCPT ); Mon, 1 Aug 2005 14:11:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261459AbVHASJx (ORCPT ); Mon, 1 Aug 2005 14:09:53 -0400 Received: from rutherford.zen.co.uk ([212.23.3.142]:36567 "EHLO rutherford.zen.co.uk") by vger.kernel.org with ESMTP id S261398AbVHASJv (ORCPT ); Mon, 1 Aug 2005 14:09:51 -0400 Message-ID: <42EE650A.60109@dresco.co.uk> Date: Mon, 01 Aug 2005 19:08:10 +0100 From: Jon Escombe Reply-To: lists@dresco.co.uk User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 To: abonilla@linuxwireless.org CC: linux-kernel@vger.kernel.org, hdaps devel , "'Yani Ioannou'" , Dave Hansen Subject: Re: [Hdaps-devel] Re: IBM HDAPS, I need a tip. References: <1122861215.11148.26.camel@localhost.localdomain> <1122872189.5299.1.camel@localhost.localdomain> In-Reply-To: <1122872189.5299.1.camel@localhost.localdomain> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Hops: 1 X-Originating-Rutherford-IP: [82.68.23.174] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >>Thanks to development of the driver from some nice guys, we are able to >>get data from the accelerometer. There is one problem. How do we >>calibrate the values that are outputed from the userspace? All PC's get >>a different value, and we can't really find the best solution. What is >>the scientific and smartest way to do this? >> >> I'm not convinced we need to get so hung up on the calibration. Sure, each laptop has somewhat different resting values - but surely what we're looking for is any rate of change in either the X or Y values thats over a predefined 'safe' threshold? (I would imagine that we're only going to find that safe threshold from some imaginative testing once we've got the head parking sorted....) Just my 2p worth, Jon. ______________________________________________________________ Email via Mailtraq4Free from Enstar (www.mailtraqdirect.co.uk)