backlight

#!/sbin/openrc-run
# created by jacopo@autistici.org, with patch from Raphael Costa Raphael
# with this software you have no kind of support.
#

start() {
    ebegin 'Restoring the screen brightness'
    
for card in "$(find /sys/class/backlight/ -type l)"; do
        if [ -r "/var/cache/backlight/$(basename $card)-brightness-old" ]; then
            cp "/var/cache/backlight/$(basename $card)-brightness-old" "/sys/class/backlight/$(basename $card)/brightness"
        fi
    done

    eend $?
}

stop() {
    ebegin 'Saving the screen brightness'
    if ! [ -d '/var/cache/backlight/' ]; then
        mkdir '/var/cache/backlight'
    fi
    if ! [ -w '/var/cache/backlight/' ]; then
        chmod 755 '/var/cache/backlight/'
    fi
    
for card in "$(find /sys/class/backlight/ -type l)"; do
        cp "/sys/class/backlight/$(basename $card)/brightness" "/var/cache/backlight/$(basename $card)-brightness-old"
    done
    eend $?
}