How to control the LEDs

LEDs on 2.6.32 kernel

are controlled through the TCA6507 driver.

LED numbers

The examples below all refer to LED 0. Substitute the correct LED number:

• 0: AUX - Red
• 1: AUX - Green
• 3: Power - Red
• 4: Power - Green
• 6: WLAN/Bluetooth Reset (active low - don't use blink or dimmed modes!)

LED on

echo "255" >/sys/class/leds/tca6507:0/brightness

LED permanently off

echo "0" >/sys/class/leds/tca6507:0/brightness

LED half brightness

echo "127" >/sys/class/leds/tca6507:0/brightness

LED dimming and blinking

• use $value between 1 and 15 for dimmed intensity
• use $value between 17 and 31 for blinking

Note: all LEDs share the same intensity value unless they are set to 0 or 255!

Example

make AUX button blink yellow (red+green)

echo 31 >/sys/class/leds/tca6507:0/brightness
echo 31 >/sys/class/leds/tca6507:1/brightness

make AUX button blink between red and yellow (red+green)

echo 255 >/sys/class/leds/tca6507:0/brightness
echo 31 >/sys/class/leds/tca6507:1/brightness

LEDs on 3.x kernel

are controlled through the TCA6507 driver.

LED numbers

tbd.

LED intensity

make LED blinking

modprobe ledtrig-timer
echo /sys/class/leds/gta04:whatever/
echo timer > trigger
echo 10000 > delay_off
echo 500 > delay_on

See also http://lists.goldelico.com/pipermail/gta04-owner/2011-December/001043.html