How to probe/detect hardware without rebooting.

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http://www.linuxquestions.org – I have kuduz installed but am wondering if there is a way to probe hardware with Fedora without having to reboot? Ioscan command is not found in my terminal and I can't find it in my Package Manager or a RPM search. A GUI version would also be of interest but not mandatory.I'm a Mandriva defector that is wheening off of Drake Tools. Thanks in advance! (HowTos)