From mboxrd@z Thu Jan 1 00:00:00 1970 From: KT Liao Subject: [PATCH] Input: elantech - force a module ignore ABS mode Date: Mon, 12 Dec 2016 15:11:03 +0800 Message-ID: <1481526663-2730-1-git-send-email-kt.liao@emc.com.tw> Return-path: Received: from emcscan.emc.com.tw ([192.72.220.5]:48479 "EHLO emcscan.emc.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750918AbcLLHJo (ORCPT ); Mon, 12 Dec 2016 02:09:44 -0500 Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, dmitry.torokhov@gmail.com Cc: phoenix@emc.com.tw, kt.liao@emc.com.tw One Elan sample which sample version is 0x74 and hw_version is 0x04 has a bug in abs mode, so let it run in default mode Signed-off-by: KT Liao --- drivers/input/mouse/elantech.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index db7d1d6..f1c2d10 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1687,6 +1687,13 @@ int elantech_init(struct psmouse *psmouse) etd->samples[0], etd->samples[1], etd->samples[2]); } + if (etd->samples[1] == 0x74 && etd->hw_version == 0x03) { + /*This module has a bug in absolute mode, let it be defualt mode */ + psmouse_info(psmouse, + "This module only active in default mode\n"); + goto init_fail; + } + if (elantech_set_absolute_mode(psmouse)) { psmouse_err(psmouse, "failed to put touchpad into absolute mode.\n"); -- 2.7.4