more /usr/share/virtualbox/VBoxCreateUSBNode.sh
#! /bin/sh
# $Id: VBoxCreateUSBNode.sh 68531 2010-12-05 19:39:07Z fmehnert $ */
## @file
# VirtualBox USB Proxy Service, Linux Specialization.
# udev helper for creating and removing device nodes for VirtualBox USB devices
#
#
# Copyright (C) 2010 Oracle Corporation
#
# This file is part of VirtualBox Open Source Edition (OSE), as
# available from http://www.virtualbox.org. This file is free software;
# you can redistribute it and/or modify it under the terms of the GNU
# General Public License (GPL) as published by the Free Software
# Foundation, in version 2 as it comes in the "COPYING" file of the
# VirtualBox OSE distribution. VirtualBox OSE is distributed in the
# hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
#
do_remove=0
case "$1" in "--remove")
do_remove=1; shift;;
esac
bus=`expr "$2" '/' 128 + 1`
device=`expr "$2" '%' 128 + 1`
class="$3"
group="$4"
if test "$class" -eq 9; then
exit 0
fi
devdir="`printf "/dev/vboxusb/%.3d" $bus`"
devpath="`printf "/dev/vboxusb/%.3d/%.3d" $bus $device`"
if test "$do_remove" -eq 0; then
if test -z "$group"; then
group="vboxusers"
fi
mkdir /dev/vboxusb -m 0750 2>/dev/null
chown root:$group /dev/vboxusb 2>/dev/null
mkdir "$devdir" -m 0750 2>/dev/null
chown root:$group "$devdir" 2>/dev/null
mknod "$devpath" c $1 $2 -m 0666 2>/dev/null
chown root:$group "$devpath" 2>/dev/null
else
rm -f "$devpath"
fi