Thanks. What about the output of vboxmanage list usbhost? Does virtualBox and/or a VM have to be running to get valid output? Does it matter what filters are defined? I assume it be similar to what I'd see with a linux lsusb command?
Just to get a feel for how it is supposed to work I'm now trying it on my laptop where I run ubuntu. Below is what I get. Does this make sense or am I doing something wrong? Since this is a different OS, different PC, slightly older version of VB (4.1.12), yet I'm getting the same thing I'm suspecting I'm not understanding how "vboxmanage list usbhost" is meant to be used.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) 64MB QDI U2 DISK
ruth@ruth-laptop:~$ vboxmanage list usbhost
Host USB Devices: