From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephan Mueller <smueller@chronox.de>
Subject: Re: Sony Vaio Duo 11: getting middle mouse button to work
Date: Wed, 29 Jan 2014 15:59:24 +0100
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To: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Cc: Mattia Dongili <malattia@linux.it>, platform-driver-x86@vger.kernel.org, Jiri Kosina <jkosina@suse.cz>, linux-input <linux-input@vger.kernel.org>

Am Mittwoch, 29. Januar 2014, 09:53:03 schrieb Benjamin Tissoires:

Hi Benjamin,

>On Fri, Jan 24, 2014 at 11:51 PM, Stephan Mueller <smueller@chronox.de> 
wrote:
>> Am Samstag, 25. Januar 2014, 12:17:13 schrieb Mattia Dongili:
>> 
>> Hi Mattia,
>> 
>>> I'd try with the input subsystem and the synaptics_usb driver first
>>> but it's just a wild guess. Your kernel log should give you more
>>> hints about which driver is bound to the device and the sysfs tree
>>> under
>>> /sys/class/input/event*/device/* has all the capabilities and
>>> identifiers.
>> 
>> The following did not help:
>> 
>> modprobe synaptics_usb
>> cd /sys/bus/usb/drivers/usbhid
>> echo -n "1-1.3:1.0" > unbind
>> #now the mouse is without driver, does not move, and
>> #/sys/class/input/event2/device/device is without driver
>> cd /sys/bus/usb/drivers/synaptics_usb
>> echo -n "1-1.3:1.0" > bind
>> #error: no such device, mouse does not work, nothing in dmesg
>> cd /sys/bus/usb/drivers/usbhid
>> echo -n "1-1.3:1.0" > bind
>> #mouse works again without middle button
>
>Hi Stephan,
>
>in this case, you definitively want to talk to HID (and input) folks.
>Adding Jiri, the HID maintainer in the discussion.
>
>Your mouse does not seem to be handled properly by the hid subsystem
>and needs quirks, or fix.
>
>Can you send us some hid-recorder[1] traces of your device? We should
>then be able to check what's wrong and hopefully fix the problem.

Thanks a lot for the helping hand. I will try your suggestion tonight 
and report back.

But please allow me to point out that I have doubts that HID or input is 
at fault, because when sniffing on the USB bus with usbmon, I do *not* 
see any information transported when pressing the middle button. 
Therefore, I would suspect it is rather the base USB driver that somehow 
needs a quirk to access the mouse properly.

Thanks a lot
Stephan