OpenWRT自定義機身按鍵功能教學：爲WR30U添加WIFI開關按鍵

# 安裝插件
opkg update
opkg install kmod-button-hotplug

# 新建目錄 
mkdir -p /etc/hotplug.d/button
 
# 寫入以下內容到 /etc/hotplug.d/button/buttons 文件，直至遇到"EOF"停止
cat << "EOF" > /etc/hotplug.d/button/buttons
logger "the button was ${BUTTON} and the action was ${ACTION}"
EOF

Jan 1 00:01:15 OpenWrt user.notice root: the button was BTN_9 and the action was pressed

cat << "EOF" > /etc/hotplug.d/button/00-button
source /lib/functions.sh
 
do_button () {
    local button
    local action
    local handler
    local min
    local max
 
    config_get button "${1}" button
    config_get action "${1}" action
    config_get handler "${1}" handler
    config_get min "${1}" min
    config_get max "${1}" max
 
    [ "${ACTION}" = "${action}" -a "${BUTTON}" = "${button}" -a -n "${handler}" ] && {
        [ -z "${min}" -o -z "${max}" ] && eval ${handler}
        [ -n "${min}" -a -n "${max}" ] && {
            [ "${min}" -le "${SEEN}" -a "${max}" -ge "${SEEN}" ] && eval ${handler}
        }
    }
}
 
config_load system
config_foreach do_button button
EOF
 
uci add system button
uci set system.@button[-1].button="BTN_9"
uci set system.@button[-1].action="pressed"
uci set system.@button[-1].handler="logger this is a BTN_9 pressed handler command"
uci commit system 

Jan 1 00:01:15 OpenWrt user.notice root: this is a BTN_9 pressed handler command

uci set system.@button[-1].handler="wifi down"
uci commit system

uci add system button
uci set system.@button[-1].button="BTN_9"
uci set system.@button[-1].action="released"
uci set system.@button[-1].handler="wifi up"
uci set system.@button[-1].min="3"
uci set system.@button[-1].max="10"
uci commit system

uci add system button
uci set system.@button[-1].button="BTN_9"
uci set system.@button[-1].action="released"
uci set system.@button[-1].handler="/usr/bin/wifionoff"
uci set system.@button[-1].min="0"
uci set system.@button[-1].max="3"
uci commit system

cat << "EOF" > /usr/bin/wifionoff
#!/bin/sh
STATEFILE="/tmp/wifionoff.state"
 
if [ "${#}" -eq 1 ]; then
    case "${1}" in
        "up"|"on") GOAL="on" ;;
        "down"|"off") GOAL="off" ;;
    esac
else
    if [ -e "${STATEFILE}" ]; then
	GOAL="on"
    else
        # if the statefile doesn't exist, turn wifi off
        GOAL="off"
    fi
fi
 
if [ "${GOAL}" = "off" ]; then
    /sbin/wifi down
    touch "${STATEFILE}"
else
    /sbin/wifi up
    # file may not exist if we're given args
    rm "${STATEFILE}" 2> /dev/null || true
fi
EOF
chmod u+x /usr/bin/wifionoff

#!/bin/sh

ISTATUS="$(uci -q get wireless.default_radio0.disabled)"
DSTATUS="$(uci -q get wireless.radio0.disabled)"

if [ "${ISTATUS}" = "1" ] && [ "${DSTATUS}" = "1" ]; then
	uci del wireless.default_radio0.disabled
	uci del wireless.radio0.disabled
        wifi reload
else
	uci set wireless.default_radio0.disabled='1' 
	uci set wireless.radio0.disabled='1'
	wifi reload
fi

EOF

#!/bin/sh /etc/rc.common
# Example script
# Copyright (C) 2007 OpenWrt.org
 
START=100
STOP=15
 
start() {        
        echo start
	uci set wireless.default_radio0.disabled='1' 
	uci set wireless.radio0.disabled='1'
	wifi reload

}                 
 
stop() {          
        echo stop
        # commands to kill application 
}

# Put your custom commands here that should be executed once
# the system init finished. By default this file does nothing.
logger start rc local
/etc/wifi2goffdelay

exit 0

logger wait 60s to disable 2.4g wifi
sleep 60
uci set wireless.default_radio0.disabled='1' 
uci set wireless.radio0.disabled='1'
wifi reload
logger 2.4g wifi is disable