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Date: Tue, 26 May 2009 11:54:34 -0400
From: Mike Edenfield <kutulu@kutulu.org>
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Subject: Re: [gentoo-user] Synaptics and HAL Device Information Files
References: <184110a70905050537n3e7cf8f0of22428d19f7f2f17@mail.gmail.com> <200905052142.09801.alan.mckinnon@gmail.com> <184110a70905060604q16574514o5f3db2da87189de6@mail.gmail.com> <20090526095842.GA6067@red.laas.fr>
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On 5/26/2009 5:58 AM, Redouane Boumghar wrote:
> First of all where can I find information about the file names of FDI ?
> NUMBER-NAME-NAME.fdi
>
> Where are the specification of the nomenclature ?
> I have found different names possible :
> 11-x11-synaptics.fdi
> 99-x11-synaptics.fdi
>
> Why the donkey would it be 99 or 11 ?
Since (as I see below) you've added "hal" to your USE flags for the
xf86-input-synaptics driver, you should already have the synaptics HAL
data installed -- the post-ebuild messages would tell you where those
are. Currently, the stock HAL rules are installed into
/usr/share/hal/fdi/policy/10osvendor/11-x11-synaptics.fdi
The reason it's number 11 is because the synaptics Xorg driver exposes
itself to HAL in a way that also looks like a mouse, so it matches all
on the HAL rules for standard pointer device behavior. The synaptics
rules need to override the normal rules, which are in the file
10-x11-pointer.fdi, so the synaptics rules go into 11-x11-synaptics.fdi
and get loaded second.
The file named 99- is most likely a suggestion from someone for a local
customization to the policy, since it will be loaded after everything
else. Since the synaptics rules are included in the base HAL policy
now, there's no need for the 99- file.
> The thing is that I don't know how to match my touchpad with the
> fdi policy or that I have another unknown problem.
You should not have to do anything to get your touchpad recognized by
HAL as a synaptics device, since you already have the HAL policy file
locally. You can use lshal(1) to ask HAL what devices it found, for
example:
lshal | grep -9 input.x11_driver
You should see a result which includes:
input.x11_driver = 'synaptics'
If you back up a few lines you will see the info.capabilities set, which
should include items like "input", "input.mouse", and input.touchpad.
The default settings are in the FDI file in /usr/share, which will also
show you how to override any of those settings. Basically, anything
that used to be an xorg.conf option can be set using an
"input.x11_options.OPTIONNAME" key. For example, to turn on SHMConfig
so you can use the synaptics utilities:
<?xml version="1.0" encoding="ISO-8859-1"?>
<deviceinfo version="0.2">
<device>
<match key="info.capabilities" contains="input.touchpad">
<merge key="input.x11_options.SHMConfig" type="string">On</merge>
</match>
</device>
</deviceinfo>
Put this in an FDI file inside your /etc/hal/fdi/policy folder, such as
/etc/hal/fdi/policy/10osvendor/11-x11-synaptics.fdi