From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754637AbbAEW25 (ORCPT ); Mon, 5 Jan 2015 17:28:57 -0500 Received: from mail-we0-f178.google.com ([74.125.82.178]:44304 "EHLO mail-we0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752973AbbAEW2u (ORCPT ); Mon, 5 Jan 2015 17:28:50 -0500 From: Gabriele Mazzotta To: linux-input@vger.kernel.org Cc: dmitry.torokhov@gmail.com, rydberg@euromail.se, linux-kernel@vger.kernel.org, silverhammermba@gmail.com, peter.hutterer@who-t.net, hdegoede@redhat.com, benjamin.tissoires@gmail.com, Gabriele Mazzotta Subject: [PATCH v2 1/4] input: synaptics - fix pressure values calculation on image sensors Date: Mon, 5 Jan 2015 23:28:32 +0100 Message-Id: <1420496915-31560-2-git-send-email-gabriele.mzt@gmail.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1420496915-31560-1-git-send-email-gabriele.mzt@gmail.com> References: <1420496915-31560-1-git-send-email-gabriele.mzt@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The pressure values retrieved from secondary packets was incorrectly shifted, making them lower than what they actually were. Since this only happened with secondary packets, the values reported when only one finger was present on the touchpad were correct. Signed-off-by: Gabriele Mazzotta --- drivers/input/mouse/synaptics.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index f89de89..4d22ebd 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -588,7 +588,7 @@ static void synaptics_parse_agm(const unsigned char buf[], agm->w = hw->w; agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; - agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; + agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 2; break; case 2: -- 2.1.4