root@Gargoyle:~# cat /etc/config/system

config system
        option timezone 'CET-1CEST,M3.5.0/2,M10.5.0/3'
        option zonename 'Europe/Warsaw'
        option hostname 'Gargoyle'
        option cronloglevel '9'
        option stat '1'

config timeserver 'ntp'
        list server '0.pool.ntp.org'
        list server '1.pool.ntp.org'
        list server '2.pool.ntp.org'
        list server '3.pool.ntp.org'
        option enable_server '0'

config button 'wifi_button'
        option button 'wps'
        option action 'released'
        option handler '/sbin/wifionoff'
        option min '0'
        option max '2'

config button 'reboot_button'
        option action 'released'
        option handler 'logger reboot ; /usr/lib/gargoyle/reboot.sh ;'
        option min '3'
        option max '10'
        option button 'reset'

config button 'reset_button'
        option button 'reset'
        option action 'released'
        option handler 'logger restore defaults ; /sbin/firstboot ; reboot ;'
        option min '11'
        option max '90'

root@Gargoyle:~#

root@Gargoyle:~# echo  0 > /sys/class/leds/tplink:blue:system/brightness
-ash: can't create /sys/class/leds/tplink:blue:system/brightness: nonexistent directory
root@Gargoyle:~#

root@Gargoyle:~# ls /sys/class/leds
ath9k-phy0           tp-link:blue:system

root@Gargoyle:~# cat /etc/rc.local
# Put your custom commands here that should be executed once
# the system init finished. By default this file does nothing.

echo '0' > '/sys/kernel/debug/ieee80211/phy0/ath9k/ani'
echo '0' > '/sys/class/leds/tp-link:blue:system/brightness'