> can you get rid of all of the #ifdef HAVE_DRIVER_MODEL stuff?

Done.  Now this code "knows" it's running in a 2.5
environment, and needs modifications to run on 2.4.

I also changed the file modes in the module_parm()
calls so the parameters will be writable when they
eventually show up in sysfs; and fixed a typo.

Compile-tested with and without DEBUG enabled.