On 12/27/2010 06:03 AM, walt wrote:
> ...
My new (post-hal) mouse config:

Section "InputClass" <----- note the new word "Class", not "Device"
Identifier "trackball" <----- can be anything you want
MatchProduct "ImExPS" <-----*new*. Matches the product name!

Clarification about that MatchProduct keyword:

Hal and udev differ slightly in the way they identify hardware devices
(is anyone surprised?).

When I run 'lshal' to display all my hardware, I see this about the mouse:

info.product = 'ImExPS/2 Logitech Explorer Mouse'

Now for the confusion.  When I run 'udevadm info --export-db" I see:

E: PRODUCT=11/2/6/6d
E: NAME="ImExPS/2 Logitech Explorer Mouse"

Note that MatchProduct in the xorg.conf file really wants the udev NAME,
*not* the udev PRODUCT.

I suppose the MatchProduct keyword was selected back in the day when
hal was still the boss instead of a has-been.  "MatchName" would be much
less confusing than "MatchProduct".  But don't hold your breath waiting
for it to change.


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