我這台 ASUS 的 Laptop M24NE C5PDR 上面有四個 LED 燈，分別代表了 power, battery, email, wireless ，在使用 windows driver 時會自動控制這幾個燈號，很幸運的，從 Linux 下面也可以透過 asus_acpi 控制這幾個燈號，例如要讓 email 燈亮，只要 echo 1 > /proc/acpi/asus/mled 就可以，所以我分別設定了有新郵件時，讓 mled 亮，搜尋到 AP 時，讓 wled 亮，非常的方便 底下是 wifi led 設定 script:

#!/bin/sh

set -x

WIFI_STATE=off TOGGLE=false trap 'leave' INT QUIT TERM

leave() { echo 0 > /proc/acpi/asus/wled echo "Wifi Led Monitor: off" exit 0 } while true do if [ cat /proc/net/wireless |sed '1,2d'|awk '{print $4}'|bc -gt 0 ] then if [ $WIFI_STATE = off ] then WIFI_STATE=on TOGGLE=true else TOGGLE=false fi elif [ $WIFI_STATE = on ] then WIFI_STATE=off TOGGLE=true fi

if [ $TOGGLE = true ]
then
    if [ $WIFI_STATE = on ]
    then
        echo 1 > /proc/acpi/asus/wled
    else
        echo 0 > /proc/acpi/asus/wled
    fi
fi
sleep 1

done