Kudzu is the RedHatLinux hardware probing library, and the associated configuration program. The probing library is used by various system utilities, such as anaconda (the RedHat installer), Xconfigurator, and hwbrowser. The tool runs at system boot time to determine what hardware has been added or removed from the system.
One page links to KudZu:
http://rhlinux.redhat.com/kudzu/