files/usr/local/libexec/thinkpad-brightness.laptop


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#!/bin/sh

cur=$(/usr/bin/backlight -q)

case $1 in
  up)
      if [ "$cur" -ge 50 ]; then
        delta=10
      elif [ "$cur" -ge 10 ]; then
        delta=5
      else
        delta=2
      fi

      /usr/bin/backlight incr "$delta"
    ;;
  down)
      if [ "$cur" -le 10 ]; then
        delta=2
      elif [ "$cur" -le 50 ]; then
        delta=5
      else
        delta=10
      fi

      /usr/bin/backlight decr "$delta"
    ;;
  *)
    exit 1
    ;;
esac