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#!/bin/sh
# script is buggy; until patched just do exit 0
#exit 0
# add zeros to device or bus
add_zeros () {
case "$(echo "$1" | wc -L)" in
1) echo "00$1" ;;
2) echo "0$1" ;;
*) echo "$1"
esac
exit 0
}
# bus and device dirs in /sys
USB_PATH=$(echo "${MDEV}" | sed -e 's/usbdev\([0-9]\).[0-9]/usb\1/')
USB_PATH=$(find /sys/devices -type d -name "${USB_PATH}")
USB_DEV_DIR=$(echo "${MDEV}" | sed -e 's/usbdev\([0-9]\).\([0-9]\)/\1-\2/')
# dir names in /dev
BUS=$(add_zeros "$(echo "${MDEV}" | sed -e 's/^usbdev\([0-9]\).[0-9]/\1/')")
USB_DEV=$(add_zeros "$(echo "${MDEV}" | sed -e 's/^usbdev[0-9].\([0-9]\)/\1/')")
# try to load the proper driver for usb devices
case "${ACTION}" in
add|"")
# load usb bus driver
for i in "${USB_PATH}"/*/modalias ; do
modprobe "$(cat "$i")" 2>/dev/null
done
# load usb device driver if existent
if [ -d "${USB_PATH}/${USB_DEV_DIR}" ]; then
for i in "${USB_PATH}/${USB_DEV_DIR}"/*/modalias ; do
modprobe "$(cat "$i")" 2>/dev/null
done
fi
# move usb device file
mkdir -p "bus/usb/${BUS}"
mv "${MDEV}" "bus/usb/${BUS}/${USB_DEV}"
;;
remove)
# unload device driver, if device dir is existent
if [ -d "${USB_PATH}/${USB_DEV_DIR}" ]; then
for i in "${USB_PATH}/${USB_DEV_DIR}"/*/modalias ; do
modprobe -r "$(cat "$i")" 2>/dev/null
done
fi
# unload usb bus driver. Does this make sense?
# what happens, if two usb devices are plugged in
# and one is removed?
for i in "${USB_PATH}"/*/modalias ; do
modprobe -r "$(cat "$i")" 2>/dev/null
done
# remove device file and possible empty dirs
rm -f "bus/usb/${BUS}/${USB_DEV}"
rmdir "bus/usb/${BUS}/" 2>/dev/null
rmdir bus/usb/ 2>/dev/null
rmdir bus/ 2>/dev/null
esac
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