From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261816AbVGaOKA (ORCPT ); Sun, 31 Jul 2005 10:10:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261793AbVGaOJp (ORCPT ); Sun, 31 Jul 2005 10:09:45 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:56271 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S261806AbVGaOIx (ORCPT ); Sun, 31 Jul 2005 10:08:53 -0400 Date: Sun, 31 Jul 2005 16:08:40 +0200 From: Pavel Machek To: Alistair John Strachan Cc: Brian Schau , linux-kernel@vger.kernel.org Subject: Re: [PATCH] Wireless Security Lock driver. Message-ID: <20050731140840.GK9418@elf.ucw.cz> References: <42EB940E.5000008@schau.com> <20050730194215.GA9188@elf.ucw.cz> <200507311459.00957.s0348365@sms.ed.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200507311459.00957.s0348365@sms.ed.ac.uk> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > > I've attached a gzipped version of my Wireless Security Lock patch > > > for v2.6.13-rc4. > > > A Wireless Security Lock (WSL or weasel :-) is made up of two parts. > > > One part is a receiver which you plug into any available USB port. > > > The other part is a transmitter which at fixed intervals sends > > > "ping packets". > > > A "ping packet" usually consists of an ID and a flag telling if the > > > transmitter has just been turned on. > > > > Idea is good... but why don't you simply use bluetooth (built into > > many notebooks) and bluetooth-enabled phone? > > > > Probably could be done in userspace, too :-). > > There's a script to this on the gentoo wiki via BlueZ. > > http://gentoo-wiki.com/TIP_Bluetooth_Proximity_Monitor > > I personally think the problem with this approach is that most phones have > bluetooth enabled explicitly as an option, it doesn't run all the time, or > default on. Primarily this is because bluetooth can drain your phone's > battery (though, I don't know by how much, if you're not actually > transferring data over it). I have bluetooth turned on all the time, anyway, and it does not drain battery that badly (standby time goes down 30%?). > A CR2032 cell, in a specific piece of kit, is going to last for a lot longer > than a phone battery. Well, you know... phones have *rechargable* batteries :-). -- if you have sharp zaurus hardware you don't need... you know my address