From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265531AbTFMVC1 (ORCPT ); Fri, 13 Jun 2003 17:02:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265535AbTFMVC1 (ORCPT ); Fri, 13 Jun 2003 17:02:27 -0400 Received: from maild.telia.com ([194.22.190.101]:22756 "EHLO maild.telia.com") by vger.kernel.org with ESMTP id S265531AbTFMVCZ (ORCPT ); Fri, 13 Jun 2003 17:02:25 -0400 X-Original-Recipient: linux-kernel@vger.kernel.org To: Vojtech Pavlik Cc: Kernel Mailing List , Vojtech Pavlik , Peter Berg Larsen Subject: Re: [PATCH] Synaptics TouchPad driver for 2.5.70 References: <20030611170246.A4187@ucw.cz> <20030611203408.A6961@ucw.cz> From: Peter Osterlund Date: 13 Jun 2003 23:15:57 +0200 In-Reply-To: <20030611203408.A6961@ucw.cz> Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Vojtech Pavlik writes: > On Wed, Jun 11, 2003 at 08:16:13PM +0200, Peter Osterlund wrote: > > > The w value is somewhat special and not really a real axis. According > > to the Synaptics TouchPad Interfacing Guide > > (http://www.synaptics.com/decaf/utilities/ACF126.pdf), W is defined as > > follows: > > > > Value Needed capability Interpretation > > W = 0 capMultiFinger Two fingers on the pad. > > W = 1 capMultiFinger Three or more fingers on the pad. > > W = 2 capPen Pen (instead of finger) on the pad. > > W = 3 Reserved. > > W = 4-7 capPalmDetect Finger of normal width. > > W = 8-14 capPalmDetect Very wide finger or palm. > > W = 15 capPalmDetect Maximum reportable width; extremely > > wide contact. > > > > Is there a better way than using ABS_MISC to pass the W information to > > user space? > > We should probably add an EV_MSC, MSC_GESTURE event type for this. > That'll be the cleanest solution. Peter Berg Larsen suggested in a private email that we shouldn't export W directly, because it is too synaptics specific. Better split it in "number of fingers" and "finger width", so that other touchpads could use the same format. What do we call these things? ABS_FINGER_WIDTH and ABS_NR_FINGERS maybe? -- Peter Osterlund - petero2@telia.com http://w1.894.telia.com/~u89404340