Re: sorg: understanding InputDevice, dev assignments, and mice
On 10/26/05, Simo Kauppi <swk@nic.fi> wrote:
> On Wed, Oct 26, 2005 at 12:23:38AM -0400, Matt Price wrote:
> >
> > what I want to know is:
> >
> > - how do I determine which device each physical mouse is/should be attached to?
>
> You can `cat /proc/bus/input/devices` to see which devices the mice are
> connected to.
>
> > - what stanzas do I need in xorg.conf to ensure that all the mice, and
> > ESPECIALLY the internal pointer, always work?
>
> If all your mice are registered proberly as mice, you can probably have
> just one InputDevice section for all your mice with
> Option "Device" "/dev/input/mice" in it and all your mice should work.
>
> If your mice have different configuration (for example they have
> different kind of buttons, scroll wheel or something like that) or if
> you want to have different configuration for each mice for some reason,
> you need to have a separate InputDevice section for each mice. In that
> case you also need a different Option "Device" "/dev/something" for them.
>
> Mice have their separate devices in /dev/input/mouseX, where X is
> 0,1,2... depending on the number of mice connected to your computer.
>
> You can see from the /proc/bus/input/devices which mouse is connected to
> which /dev/input/mouseX. Those can of course change between reboots, so
> to be on the safe side and always have a certain device for a certain
> mouse, you can use symlinking in udev.
>
> Just put a line like:
> SYSFS{bus}=="usb", SYSFS{name}=="EPSON Presentation Remote", SYMLINK="epson"
> into your /etc/udev/rules.d/010_local.rules
>
> The SYSFS{bus} is the bus your mouse is connected to ("serio" for a ps/2
> mouse), SYSFS{name} is the name you find in the /proc/bus/input/devices
> or in the /sys filesystem (if you have /sys filesystem) and SYMLINK is
> the name you want in your /dev directory.
>
> In the example above my usb presentation mouse has a symlink as
> /dev/epson so I can put that in my xorg.conf InputDevice section.
>
> If you have separate InputDevice sections for your mice, you also need
> to refer to them in the ServerLayout section as
> InputDevice "inputdevice_identifier"
>
> I think, only one mouse can be a core pointer (Option "Corepointer" in
> the InputDevice section). In your case it's probably the internal
> pointer.
>
> You can also have multiple ServerLayout sections. The first one in the
> xorg.conf is the default. The others can be used by starting X as:
> startx -- -layout "serverlayout_id".
>
this is just what I wanted to know! thanks much. I will implement a
plan of action soon...
matt
> > ---------
>
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