From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754032Ab1K2JXS (ORCPT ); Tue, 29 Nov 2011 04:23:18 -0500 Received: from mail-iy0-f174.google.com ([209.85.210.174]:58428 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753107Ab1K2JXO (ORCPT ); Tue, 29 Nov 2011 04:23:14 -0500 Date: Tue, 29 Nov 2011 01:23:10 -0800 From: Dmitry Torokhov To: Feng Tang Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, kwlee@mtekvision.com, joel.clark@intel.com Subject: Re: [PATCH 2/2] Input: tsc2007 - Add a z1_low_threshhold platform data parameter Message-ID: <20111129092310.GB21758@core.coreip.homeip.net> References: <1322554378-348-1-git-send-email-feng.tang@intel.com> <1322554378-348-2-git-send-email-feng.tang@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1322554378-348-2-git-send-email-feng.tang@intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 29, 2011 at 04:12:58PM +0800, Feng Tang wrote: > This originates from a patch in Meego IVI kernel with the name > linux-2.6.37-connext-0027-tsc2007.patch > There is no author info excepte a line "From MeeGo " > > When integrating tsc2007 on Intel IVI platform, there are a lot of noise > data whose z1 value is around 10 which is not a sane "z1". So add > a "z1_low_threshhold" to filter those nosie data, to make the device work > properly. Sounds like a task for userspace to ignore pressure that is too low. Bonus points for making it configurable so user can adjust sensitivity. Thanks. -- Dmitry