Revision: 74
http://svn.sourceforge.net/mactel-linux/?rev=74&view=rev
Author: ludov
Date: 2006-11-30 07:40:56 -0800 (Thu, 30 Nov 2006)
Log Message:
-----------
add the "toggle" feature. Thanks to Hannes Wyss for the idea
Modified Paths:
--------------
trunk/tools/keyboard_brigthness
Modified: trunk/tools/keyboard_brigthness
===================================================================
--- trunk/tools/keyboard_brigthness 2006-11-30 13:20:17 UTC (rev 73)
+++ trunk/tools/keyboard_brigthness 2006-11-30 15:40:56 UTC (rev 74)
@@ -20,6 +20,7 @@
#set -v
#set -x
BRIGHTNESS=/sys/class/leds/smc\:kbd_backlight/brightness
+OLD_VALUE=/tmp/keyboard_brigthness_old_value
value=$(cat $BRIGHTNESS)
if [ -z "$1" ]; then
@@ -28,21 +29,39 @@
fi
if [ "$1" = "-h" ]; then
- echo "Usage: $0 [-h|arg|+arg|-arg]"
+ echo "Usage: $0 [-h|arg|+arg|-arg|toggle]"
echo
echo "Change the keyboard brigthness to:"
echo " arg"
echo " or current value + arg"
echo " or current value - arg"
+ echo " toggle between current brightness value and 0"
echo
echo "Without argument it return the current value"
exit
fi
-if [ $(expr match "$1" "[+-]") = "1" ]; then
- value=$((value$1))
+arg=$1
+if [ $arg = "toggle" ]; then
+ # get the previous value
+ if [ -f $OLD_VALUE ]; then
+ arg=$(cat $OLD_VALUE)
+ else
+ arg=0
+ fi
+
+ # only toggle to 0 if current value is !=0
+ current=$(cat $BRIGHTNESS)
+ if [ $current -ne 0 ]; then
+ cp $BRIGHTNESS $OLD_VALUE
+ arg=0
+ fi
+fi
+
+if [ $(expr match "$arg" "[+-]") = "1" ]; then
+ value=$((value$arg))
else
- value=$1
+ value=$arg
fi
if [ $value -lt 0 ]; then
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