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#!/bin/sh
# rc.usb: search for USB devices needed for installation.
# This is a function to unload the USB modules:
usb_stop() {
modprobe -r usb-storage keybdev mousedev usbmouse hid usbkbd \
input uhci usb-uhci usb-ohci uhci-hcd ohci-hcd ehci-hcd 2> /dev/null
umount usbfs 2> /dev/null
modprobe -r usbcore 2> /dev/null
}
# This is a function to attempt to enable a USB keyboard,
# mouse, and storage (CD or hard drive).
# If this causes problems for you, use "nousb" as a kernel
# command line option at boot time.
usb_start() {
# If nousb was given at boot, skip.
if ! cat /proc/cmdline | grep nousb 1> /dev/null 2> /dev/null ; then
# If there aren't even any modules for this kernel, skip.
if [ -d /lib/modules/`uname -r` ]; then
# If usbcore is already loaded, skip.
if ! grep usbcore /proc/modules 1> /dev/null 2> /dev/null ; then
echo "Probing for USB controllers."
echo "(to skip, give a 'nousb' kernel option at boot)"
#sleep 5
modprobe -q usbcore >/dev/null 2>&1
# Try to mount usbfs:
if [ -d /proc/bus/usb -a ! -f /proc/bus/usb/devices ]; then
mount -t usbfs usbfs /proc/bus/usb
fi
# Try to load all the hub modules:
modprobe -q ehci-hcd >/dev/null 2>&1
modprobe -q ohci-hcd >/dev/null 2>&1
modprobe -q uhci-hcd >/dev/null 2>&1
modprobe -q usb-ohci >/dev/null 2>&1
# NOTE: this prefers "uhci"; you may prefer "usb-uhci".
#modprobe -q usb-uhci >/dev/null 2>&1 || modprobe -q uhci >/dev/null 2>&1
modprobe -q uhci >/dev/null 2>&1 || modprobe -q usb-uhci >/dev/null 2>&1
# Load input core:
modprobe -q input >/dev/null 2>&1
# Load USB keyboard:
modprobe -q usbkbd >/dev/null 2>&1
# Load Human Interface Device (HID) USB module:
modprobe -q hid >/dev/null 2>&1
# Load mouse (just in case (TM)) and keyboard USB input modules:
modprobe -q mousedev >/dev/null 2>&1
modprobe -q keybdev >/dev/null 2>&1
# Attempt to load storage support. Some funny USB ports (non-0 LUN) might not work
# so well, but most are well-behaved.
modprobe -q usb-storage >/dev/null 2>&1
fi
fi
fi
}
case "$1" in
'start')
usb_start
;;
'stop')
usb_stop
;;
'restart')
usb_stop
sleep 5
usb_start
;;
*)
echo "usage $0 start|stop|restart"
esac
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