Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265535AbTFMVzQ (ORCPT ); Fri, 13 Jun 2003 17:55:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265547AbTFMVzQ (ORCPT ); Fri, 13 Jun 2003 17:55:16 -0400 Received: from twilight.ucw.cz ([81.30.235.3]:59053 "EHLO twilight.ucw.cz") by vger.kernel.org with ESMTP id S265535AbTFMVzM (ORCPT ); Fri, 13 Jun 2003 17:55:12 -0400 Date: Sat, 14 Jun 2003 00:08:57 +0200 From: Vojtech Pavlik To: James Simmons Cc: Peter Berg Larsen , linux-kernel@vger.kernel.org Subject: Re: [PATCH] Synaptics TouchPad driver for 2.5.70 Message-ID: <20030614000857.B10851@ucw.cz> References: <20030613223846.A9080@ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from jsimmons@infradead.org on Fri, Jun 13, 2003 at 09:51:29PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1012 Lines: 25 On Fri, Jun 13, 2003 at 09:51:29PM +0100, James Simmons wrote: > > > > Just as a idea for API. How about ABS_AREA or REL_AREA instead of > > > ABS_MISC. The idea is the pressure value returned should be about > > > the same if one presses hard with one finger or softly with a whole > > > hand. > > > > Huh? Force = Pressure x Area ... I think you're mixing up force and > > pressure here. > > OOps. Your right. I'm thinking the hardware returns a force value. What I > meant is since we have the hardware returning the pressure and the area > this data can be used. Knowing the area over which a pressure is applied > is a good thing. What do you think? Definitely. Still it doesn't cover the multi-tap/gesture stuff. -- Vojtech Pavlik SuSE Labs, SuSE CR - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/