From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner+w=401wt.eu-S934211AbXC0VBg@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S934211AbXC0VBg (ORCPT <rfc822;w@1wt.eu>);
	Tue, 27 Mar 2007 17:01:36 -0400
Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934213AbXC0VBg
	(ORCPT <rfc822;linux-kernel-outgoing>);
	Tue, 27 Mar 2007 17:01:36 -0400
Received: from www17.your-server.de ([213.133.104.17]:4049 "EHLO
	www17.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S934211AbXC0VBf (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Tue, 27 Mar 2007 17:01:35 -0400
Message-ID: <4609866C.4060602@m3y3r.de>
Date: Tue, 27 Mar 2007 23:02:36 +0200
From: Thomas Meyer <thomas@m3y3r.de>
User-Agent: Thunderbird 1.5.0.10 (X11/20070302)
MIME-Version: 1.0
To: Jiri Kosina <jkosina@suse.cz>
CC: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Adrian Bunk <bunk@stusta.de>, Soeren Sonnenburg <kernel@nn7.de>,
       linux-input@atrey.karlin.mff.cuni.cz
Subject: Re: appletouch quirk doesn't run at resume
References: <Pine.LNX.4.64.0703160925270.26106@woody.linux-foundation.org> <200703162134.14265.rjw@sisk.pl> <1174078066.13341.279.camel@localhost.localdomain> <1174087552.13341.332.camel@localhost.localdomain> <45FBBDEA.9060708@m3y3r.de> <20070318004240.GO752@stusta.de> <Pine.LNX.4.64.0703181934530.4195@jikos.suse.cz> <45FD8CA3.10405@m3y3r.de> <Pine.LNX.4.64.0703182020070.4195@jikos.suse.cz>
In-Reply-To: <Pine.LNX.4.64.0703182020070.4195@jikos.suse.cz>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
X-Authenticated-Sender: thomas@m3y3r.de
Sender: linux-kernel-owner@vger.kernel.org
X-Mailing-List: linux-kernel@vger.kernel.org

Jiri Kosina schrieb:
> On Sun, 18 Mar 2007, Thomas Meyer wrote:
>
>   
>> Appletouch is bound to the device:
>>     
>
> OK, so the quirk actually works fine ...
>   
Yes, it works fine, but...
>   
>> But the X server touchpad driver doesn't work anymore, that means i 
>> can't emulte a right click by tapping with 3 fingers on the mouse pad. 
>> after restarting x the mouse driver works again. So i think this is 
>> maybe a problem in X?
>>     
>
> ... but there is something apparently wrong either with the appletouch 
> driver or X. Could you test via evtest whether the events are properly 
> generated by the kernel? If they do, I'd say it is almost certainly X bug.
>   

It seems, that after the resume all usb devices gets removed and plug in
again (virtually!). This results in a new input device name:

before suspend and resume:

appletouch Geyser 3 inited.
input: appletouch as /class/input/input2


after resume:
Restarting tasks ... <6>usb 1-2: USB disconnect, address 3
PM: Removing info for No Bus:usbdev1.3_ep83
PM: Removing info for usb:1-2:1.0
PM: Removing info for No Bus:usbdev1.3_ep81
input: appletouch disconnected
[cut]
PM: Adding info for No Bus:usbdev1.4_ep83
PM: Adding info for usb:1-2:1.1
appletouch Geyser 3 inited.
input: appletouch as /class/input/input15

This change confuses the X synaptics driver:

Touchpad no synaptics event device found (checked 11 nodes)
Touchpad The /dev/input/event* device nodes seem to be missing
(EE) xf86OpenSerial: Cannot open device /dev/input/event2
        No such file or directory.
(WW) Touchpad: cannot open input device

And so X falls back to my second pointer device which is a UsbMouse
under /dev/input/mice

One could say that the synaptics driver rightly complains about the
missing event2 device!
So is this a bug in the X synaptics driver?

Comments are welcome.