On Fri, Aug 05, 2011 at 09:29:41PM +1200, Jason alavaliant wrote:
> I've just finished rewriting a lot of the wacom-config (
> http://wacom-config.sourceforge.net/) code to directly access the xinput
> properties of wacom devices rather than using xsetwacom. The only thing
> I've got left at this point that I don't think I'm doing the ideal way is
> getting the version of the wacom driver. (I'm currently reading
> /var/log/Xorg.0.log and using a regex to find the first version line after
> the line showing the load of wacom_drv.so)
>
> What is the recommended method for application authors to find the driver
> version on the system?
Provided you have the wacom devel pkgs installed,
pkg-config --modversion xorg-wacom
will tell you the version at compile/configure-time. That's probably the
best for an application that really requires wacom but it has the drawback
that you need the wacom devel header installed at configure time and
(in the case of a distribution) if the driver is updated, the application
may lag behind.
Assuming that xsetwacom is always the one from the driver package, xsetwacom
--version should tell you the correct version.
But really, we don't have a useful version export mainly because it wasn't
really needed so far, the other drivers don't change enough that it matters
whether you're running x.y or x.y+1. Suggestions appreciated, I've been
thinking of adding a modversion property for a while now anyway.
Cheers,
Peter
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