From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nikolai Kondrashov Subject: Re: [RFC] Adding BTN_TOOL_TOUCH to input.h Date: Sat, 27 Nov 2010 12:46:03 +0300 Message-ID: <4CF0D35B.4030807@gmail.com> References: <4CEE6D2A.9040408@euromail.se> <4CEE6EE8.4060805@gmail.com> <4CF0BC13.2010800@gmail.com> <20101127083229.GA28745@core.coreip.homeip.net> <4CF0C69D.9080904@gmail.com> <20101127091533.GA27213@core.coreip.homeip.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ey0-f174.google.com ([209.85.215.174]:43236 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751811Ab0K0Jq0 (ORCPT ); Sat, 27 Nov 2010 04:46:26 -0500 Received: by eye27 with SMTP id 27so1264522eye.19 for ; Sat, 27 Nov 2010 01:46:25 -0800 (PST) In-Reply-To: <20101127091533.GA27213@core.coreip.homeip.net> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Dmitry Torokhov Cc: Chris Bagwell , Henrik Rydberg , Ping Cheng , linux-input , Jiri Kosina On 11/27/2010 12:15 PM, Dmitry Torokhov wrote: > 2000LPI == about 79 l/mm. How is it not useable? TBH, I didn't make any real calculations. The introduced error isn't very high, indeed. The vertical size of 4x3 inch tablet becomes 75 mm instead of 76 mm. So maybe it's alright. > In mainline synaptics is the only one that does this. We do not know how > many drivers in vendor trees fill and use this data nor we do not know > about userspace. The fact that we were not able to locate them does not > mean they do not exist. The units/mm are part of input ABI now. Well, I can't argue with you here. I didn't think about 3rd party drivers, TBH. > Right, standarize on existing UOM (which are per/mm) and then implement > other UOM if theya re really needed. Will this fix qualify for inclusion into 2.6.37? Also, what do you think about units per radians for rotational axis? Thanks :) Sincerely, Nick