Virtualbox USB Passthrough

[vermaden]

Hi,

I havent used USB passthrough for some time on FreeBSD with Virtualbox, 
now with FreeBSD 10.1-STABLE (2014/12/14) and Virtualbox 4.3.20 I am not 
able to make it work, I have found some workarounds with 'sysctl 
hw.usb.ehci.no_hs=1' but that also does not work.

What is proper setup to use USB passthrough with Virtualbox on FreeBSD 
currently?

Thanks,
vermaden