Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758224AbZFCPFW (ORCPT ); Wed, 3 Jun 2009 11:05:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757232AbZFCPFE (ORCPT ); Wed, 3 Jun 2009 11:05:04 -0400 Received: from rv-out-0506.google.com ([209.85.198.235]:62536 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756591AbZFCPFB (ORCPT ); Wed, 3 Jun 2009 11:05:01 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-disposition:x-length:x-uid:content-type :content-transfer-encoding:message-id; b=UPxw4ViyJjerm3wl74xzzXDzhBa75Cf4prr4zAQvQ2nW9Hd4KD/mkZ/Gtw4t0uSqrp GwZyOP7drMi3bggK7VDgP2ser+lGDo4TFEDnIAwuT5M6GdHrqbTRY+uF36s0b6S7gFZf UknbyQRHZoaBV0juQUW83lLIoW3JsIPVA0anU= From: Dmitry Torokhov To: pgf@laptop.org Subject: Re: [PATCH] forced recalibration for the OLPC hgpk touchpad Date: Wed, 3 Jun 2009 08:04:57 -0700 User-Agent: KMail/1.11.3 (Linux/2.6.30-rc6; KDE/4.2.3; x86_64; ; ) Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org References: <3026.1243972079@foxharp.boston.ma.us> In-Reply-To: <3026.1243972079@foxharp.boston.ma.us> MIME-Version: 1.0 Content-Disposition: inline X-Length: 1782 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200906030804.57340.dmitry.torokhov@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1043 Lines: 28 Hi Paul, On Tuesday 02 June 2009 12:47:59 pgf@laptop.org wrote: > The OLPC XO laptop incorporates a combination touchpad/tablet > device which unfortunately requires frequent recalibration. The > driver will force this automatically when various suspicious > behaviors are observed, and the user can recalibrate manually > (with a special keyboard sequence). There's currently no way, > however, for an external program to cause recalibration. > > This patch creates a new node in /sys which, when written with '1', > will force a touchpad recalibration. No other writes (or reads) > of this node are supported. > Instead of creating a new sysfs attribute maybe we should make the touchpad recalibrate upon resume (reconnect)? Userspace can already request reconnect via sysfs. -- Dmitry -- 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/