I also searched for a long time, but after installing the hotplug packet from sourceforge suse 9.0 (Kernel 2.6.3) is able to load modules via hotplug.
Download the srpm from sourceforge.net
copy the src-rpm to "/usr/src/packages/SRPMS/
make your rpm via "rpmbuild --rebuild hotplug-2004_01_05-1.src.rpm "
you will get two packages in "/usr/src/packages/RPM/noarch/"
install both (rpm -Uvh *.rpm) and restart.
On my System it works - for example i needed the usblp driver for printing. Bevor installing the new hotplug package I need to load it manually via modprobe now it works automatically like in kernel 2.4.
Hope I could have helped you!