This is for my reference.

This method doesn’t seems to work for the 8.10 release.

This methord is for the closed source version of Virtual box. This was yested in ubuntu but it may work on other linux distros.

1.) Add youself to the vboxusers user group. To do this go to System >> Administration >> Users and Groups. Click on Manage Groups. Add yourself in that group.

2.) Type this in terminal.

sudo gedit /etc/init.d/mountdevsubfs.sh

Inside, you’ll see a block of code that looks like this

#
# Magic to make /proc/bus/usb work
#
#mkdir -p /dev/bus/usb/.usbfs
#domount usbfs “” /dev/bus/usb/.usbfs -obusmode=0700,devmode=0600,listmode=0644
#ln -s .usbfs/devices /dev/bus/usb/devices
#mount –rbind /dev/bus/usb /proc/bus/usb

Change it to look like this (uncomment out the region by deleting the “#’s”):

#
# Magic to make /proc/bus/usb work
#
mkdir -p /dev/bus/usb/.usbfs
domount usbfs “” /dev/bus/usb/.usbfs -obusmode=0700,devmode=0600,listmode=0644
ln -s .usbfs/devices /dev/bus/usb/devices
mount –rbind /dev/bus/usb /proc/bus/usb

Save the changes and exit.Now log out, and then log back in again for the changes to take place.