fan control using hub-ctrl

fan-ctrl.sh

#!/bin/sh

# $ wget http://www.gniibe.org/oitoite/ac-power-control-by-USB-hub/hub-ctrl.c
# $ gcc -O2 -o hub-ctrl hub-ctrl.c -lusb
# $ sudo chown root:$USER hub-ctrl
# $ sudo chmod +s hub-ctrl
# $ mv hub-ctrl ~/bin

usage() {
    echo "Usage: $0 (on|off)"
    exit 2;
}

if [ $# -ne 1 ]; then
    usage
fi

fanctrl() {
    power=$1
    device=0409:005a
    args=$(lsusb -d $device | grep -Po '\d+' | paste -sd ' ' | cut -d ' ' -f 1,2 | xargs printf "-b %s -d %s")
    ~/bin/hub-ctrl $args -P 1 -p $power
}

case $1 in
    on  ) fanctrl 1;;
    off ) fanctrl 0;;
    *   ) usage
          exit 2;;
esac