[ATrpms-users] How do the modules in video4linux kmdl differ from stock kernel?

[Jeffrey J. Kosowsky]

Before installing the atrpms of video4linux kmdl, I am curious about
how it differs.

Also, if I run into problems, what do I need to do to uninstall it?
I assume that since it overwrites kernel drivers, one would need to do
an rpm -ivh kernel-xxxx after removing the module. Right? (or does it
save and restore stuff it overwrites).

Is that sufficient or does it also overwrite stuff from other rpms?