From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9197EC3A5A4 for ; Tue, 27 Aug 2019 07:57:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 60B832189D for ; Tue, 27 Aug 2019 07:57:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566892632; bh=SQhY+TpsZ2oEYPOt8K5AAC0iYYzjOFc5UyErPw4oMUc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=yjY1MjH60iRja+m5S009bvsR4oj68dMjhVj/VCgg/Xgem3O/XjQiqVKDYPQhkLpEg mXHu/twHbtYj8TW9QHhjIsjhgOOxSUr7O6G7G25IUtku3ZGSqy1JiKb96qYvqq+ulE xUaFgNOD/EYSfabczZYO4/acDojEBlyJ4c6mxc2U= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730745AbfH0H5L (ORCPT ); Tue, 27 Aug 2019 03:57:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:49356 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730759AbfH0H5K (ORCPT ); Tue, 27 Aug 2019 03:57:10 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9161E206BA; Tue, 27 Aug 2019 07:57:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566892630; bh=SQhY+TpsZ2oEYPOt8K5AAC0iYYzjOFc5UyErPw4oMUc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RAvXCMqEbPzvJJaI9aBaqDZ67XGMajslTqa6a3sobk+iMSognSpGbkbYDnerdFuCf n/FCwUmZso1yiZVkhVlDxJL1aNgD+AsPwLbRb+eaSLd1KNBADWsXgw0zHlhYZDpUx5 7Ow10a6SVzHyt1Hyttv5VOK37mYaj/tGeuuqYNvc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jason Gerecke , Jiri Kosina Subject: [PATCH 4.19 60/98] HID: wacom: Correct distance scale for 2nd-gen Intuos devices Date: Tue, 27 Aug 2019 09:50:39 +0200 Message-Id: <20190827072721.460166857@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190827072718.142728620@linuxfoundation.org> References: <20190827072718.142728620@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jason Gerecke commit b72fb1dcd2ea9d29417711cb302cef3006fa8d5a upstream. Distance values reported by 2nd-gen Intuos tablets are on an inverted scale (0 == far, 63 == near). We need to change them over to a normal scale before reporting to userspace or else userspace drivers and applications can get confused. Ref: https://github.com/linuxwacom/input-wacom/issues/98 Fixes: eda01dab53 ("HID: wacom: Add four new Intuos devices") Signed-off-by: Jason Gerecke Cc: # v4.4+ Signed-off-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/hid/wacom_wac.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -848,6 +848,8 @@ static int wacom_intuos_general(struct w y >>= 1; distance >>= 1; } + if (features->type == INTUOSHT2) + distance = features->distance_max - distance; input_report_abs(input, ABS_X, x); input_report_abs(input, ABS_Y, y); input_report_abs(input, ABS_DISTANCE, distance);