Persisting driver configuration

[Christoph Brill]

Hi list,

I guess someone might have wondered about that before, but now I'm
wondering myself: How should a driver store changes to the
configuration? Or how should the configuration of a driver be changed at
runtime?

Why am I asking this question? Because of our friend
xf86-input-synaptics. This driver has the ability to change it's options
at runtime by putting them into a shared memory. These changes, of
course, are not persisted in the xorg.conf. And this, of course, is
annoying to the user.

Now how to solve this correctly? I prefer to remove the shared memory
stuff completely and switch to better mechanism. Is there a solution for
this yet?

Please give me input on this issue.

Thanks in advance,
  Christoph