From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Subject: Re: ELAN1000 not working on Asus Zenbook UX305CA-EHM1 Date: Fri, 20 Nov 2015 09:34:52 -0800 Message-ID: <20151120173452.GB26895@dtor-ws> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-pa0-f52.google.com ([209.85.220.52]:35863 "EHLO mail-pa0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760851AbbKTRez (ORCPT ); Fri, 20 Nov 2015 12:34:55 -0500 Received: by pacdm15 with SMTP id dm15so122414637pac.3 for ; Fri, 20 Nov 2015 09:34:54 -0800 (PST) Content-Disposition: inline In-Reply-To: Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Benjamin Tissoires Cc: Duson Lin , linux-input On Fri, Nov 20, 2015 at 09:52:14AM +0100, Benjamin Tissoires wrote: > Hi Duson, > > A user reported a non working touchpad on his Asus Zenbook UX305CA. > The touchpad is the ELAN1000 which has been added to v4.3: > > https://bugzilla.redhat.com/show_bug.cgi?id=1281990 > > In the logs, I see: > > [ 16.636101] i2c_designware i2c_designware.0: > i2c_dw_handle_tx_abort: lost arbitration > [ 16.636110] elan_i2c i2c-ELAN1000:00: writing cmd (0x0005) failed: -11 > [ 16.636113] elan_i2c i2c-ELAN1000:00: device reset failed: -11 > [ 16.636115] elan_i2c i2c-ELAN1000:00: device initialize failed: -11 > > I wonder if you could have a look at this and tell us whether the > touchpad is failing (I mean the driver) or if the i2c bus driver is at > fault. The designware controller reports that it lost arbitration, as if there were 2 masters on the same I2c bus, which is unlikely. I'd be looking into i2c bus driver first. Thanks. -- Dmitry