In the VBox 3.0.6 User Manual, it says "On newer Linux hosts, VirtualBox accesses USB devices through special files in the file system". What are "newer Linux hosts"?
I've just started developing a script to check the Linux host configuration for VirtualBox VM users to be able to use USB devices in VMs. It is posted on http://www.linuxquestions.org/questions/linux-virtualization-90/virtualbox-usb-config-test-script-testers-wanted-762585/. I would like to test for a "newer Linux host" (and any associated configuration required) but do not know how to do so apart from checking the user is in group vboxusers.