Attachment 2097 Details for Bug 5570 – A script to raise and lower the backlight values

A script to raise and lower the backlight values

apple_backlight.txt (text/plain), 1.65 KB, created by Andy Liebman on 2012-04-24 16:03:28 CEST

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Creator: Andy Liebman

Created: 2012-04-24 16:03:28 CEST

Size: 1.65 KB

patch

obsolete

>#!/bin/bash                                                                                            
>
># Anthony Fejes (apfejes@gmail.com)
># Template taken from post by Fran DiÃ©guez at
># http://www.mabishu.com/blog/2010/06/24/macbook-pro-keyboard-backlight-keys-on-ubuntu-gnulinux/
>#
># This program just modifies the value of video brightness for Apple Laptops
># You must run it as root user or via sudo.
># As a shortcut you could allow to admin users to run via sudo without password
># prompt. To do this you must add sudoers file the next contents:
>#
>#   ALL = NOPASSWD: /usr/sbin/apple_backlight
>
># After this you can use this script as follows:
>#
>#     Increase backlight keyboard:
>#           $ sudo apple_backlight up
>#     Decrease backlight keyboard:
>#           $ sudo apple_backlight down
>#
>
>BACKLIGHT=$(cat /sys/class/backlight/gmux_backlight/brightness)
>MAX=$(cat /sys/class/backlight/gmux_backlight/max_brightness)
>MIN=0
>INCREMENT=5000
>
># if [ $UID -ne 0 ]; then
>#    echo "Please run this program as superuser"
>#     exit 1
># fi
>
>case $1 in
>
>    up)
>        TOTAL=`expr $BACKLIGHT + $INCREMENT`
>        if [ $BACKLIGHT -eq $MAX ]; then
>                exit 1
>        fi
>        if [ $TOTAL -gt $MAX ]; then
>            let TOTAL=MAX
>        fi
>        echo $TOTAL > /sys/class/backlight/gmux_backlight/brightness
>        ;;
>    down)
>        TOTAL=`expr $BACKLIGHT - $INCREMENT`
>        if [ $BACKLIGHT -eq $MIN ]; then
>                exit 1
>        fi
>        if [ $TOTAL -lt $MIN ]; then
>            let TOTAL=MIN
>        fi
>        echo $TOTAL > /sys/class/backlight/gmux_backlight/brightness
>        ;;
>    *)
>        echo "Use: apple_backlight up|down"
>        ;;
>esac

#!/bin/bash                                                                                            

# Anthony Fejes (apfejes@gmail.com)
# Template taken from post by Fran DiÃ©guez at
# http://www.mabishu.com/blog/2010/06/24/macbook-pro-keyboard-backlight-keys-on-ubuntu-gnulinux/
#
# This program just modifies the value of video brightness for Apple Laptops
# You must run it as root user or via sudo.
# As a shortcut you could allow to admin users to run via sudo without password
# prompt. To do this you must add sudoers file the next contents:
#
#   ALL = NOPASSWD: /usr/sbin/apple_backlight

# After this you can use this script as follows:
#
#     Increase backlight keyboard:
#           $ sudo apple_backlight up
#     Decrease backlight keyboard:
#           $ sudo apple_backlight down
#

BACKLIGHT=$(cat /sys/class/backlight/gmux_backlight/brightness)
MAX=$(cat /sys/class/backlight/gmux_backlight/max_brightness)
MIN=0
INCREMENT=5000

# if [ $UID -ne 0 ]; then
#    echo "Please run this program as superuser"
#     exit 1
# fi

case $1 in

    up)
        TOTAL=`expr $BACKLIGHT + $INCREMENT`
        if [ $BACKLIGHT -eq $MAX ]; then
                exit 1
        fi
        if [ $TOTAL -gt $MAX ]; then
            let TOTAL=MAX
        fi
        echo $TOTAL > /sys/class/backlight/gmux_backlight/brightness
        ;;
    down)
        TOTAL=`expr $BACKLIGHT - $INCREMENT`
        if [ $BACKLIGHT -eq $MIN ]; then
                exit 1
        fi
        if [ $TOTAL -lt $MIN ]; then
            let TOTAL=MIN
        fi
        echo $TOTAL > /sys/class/backlight/gmux_backlight/brightness
        ;;
    *)
        echo "Use: apple_backlight up|down"
        ;;
esac

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