diff options
Diffstat (limited to 'packages/display-brightness/display-brightness.sh')
| -rw-r--r-- | packages/display-brightness/display-brightness.sh | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/packages/display-brightness/display-brightness.sh b/packages/display-brightness/display-brightness.sh index 4e706e1e75..5e1a0e97d4 100644 --- a/packages/display-brightness/display-brightness.sh +++ b/packages/display-brightness/display-brightness.sh @@ -7,11 +7,17 @@ STEP=5 -DRIVER="`ls /sys/class/backlight/|head -1`" +DRIVER="`ls /sys/class/backlight/|head -n 1`" MAX_BRIGHTNESS=`cat /sys/class/backlight/$DRIVER/max_brightness` ACTUAL_BRIGHTNESS=`cat /sys/class/backlight/$DRIVER/actual_brightness` BRIGHTNESS_FILE="/sys/class/backlight/$DRIVER/brightness" +if test "$1" != "up" -a "$1" != "down" -a -n "$1" +then + echo -e "\nUsage:\n\t `basename $0` [up | down]\n" + exit 0 +fi + echo "max / current" echo "$MAX_BRIGHTNESS / $ACTUAL_BRIGHTNESS" if [ ! -n "$1" ]; then @@ -22,7 +28,8 @@ if [ "$1" = "up" ]; then if [ $ACTUAL_BRIGHTNESS -eq $MAX_BRIGHTNESS ]; then exit 0 else - let CURRENT_BRIGHTNESS=$ACTUAL_BRIGHTNESS+$STEP + test "$STEP" -gt "$MAX_BRIGHTNESS" -o "$STEP" -eq "$MAX_BRIGHTNESS" && STEP=1 + let CURRENT_BRIGHTNESS=$ACTUAL_BRIGHTNESS+$STEP echo $CURRENT_BRIGHTNESS >> $BRIGHTNESS_FILE exit 0 fi @@ -42,3 +49,4 @@ if [ "$1" = "down" ]; then exit 0 fi fi + |