I am running Ubuntu 16.04.2 and I installed Virtualbox as follows
sudo apt-get install virtualbox
sudo apt-get install virtualbox-ext-pack
sudo adduser newbie vboxusers
I then installed XP/SP3 and it booted ok, mouse and tty function ok
when I connect a USB2-stick to my host it shows up in the host
when I start Oracle VM Virtualbox Manager the stick does not show up in
Settings>XPSP3>USB.
I have Enable USB Controoler and USB 2.0 (EHCI) Controller switched on. Since two years I am also running Ubuntu 14.04 with Sun VM and an XPSP3 virtualmachine and there the USB works fine. I have read all similar questions tagged virtualbox and usb but found no solution