TD-W8970 ath9k WiFi LED not working

[fld@…]

root@OpenWrt:~# ls /sys/class/leds/
adsl/        ath9k-phy0/  internet/    usb/         usb2/        wps/

root@OpenWrt:~# ls /sys/class/leds/ath9k-phy0/
brightness      max_brightness  trigger

root@OpenWrt:~# cat /sys/class/leds/ath9k-phy0/trigger
[none] nand-disk timer heartbeat default-on netdev usbdev phy0rx phy0tx phy0assoc phy0radio phy0tpt

root@OpenWrt:~# echo 1 > /sys/class/leds/ath9k-phy0/brightness

And the LED does not light up.

[anonymous]

Try to first enable the LED. It's trigger is 'none', meaning completely off.

echo default-on > /sys/class/leds/ath9k-phy0/trigger

or

echo phy0tpt > /sys/class/leds/ath9k-phy0/trigger

Also, the brightness value goes from 0 to 255. A value of 1 might not be visible easily.

Finally, this question was probably better asked on the forums, as this is not a bug.

[lpm11]

Enter these commands:

echo 1>/sys/kernel/debug/ieee80211/phy0/ath9k/gpio_mask
echo 1>/sys/kernel/debug/ieee80211/phy0/ath9k/gpio_val

Bring up wireless interface (ifconfig wlan0 up), and the led turns on!
I don't know how to use it, it doesn't flash. It only lights.

[anonymous]

You should close this ticket - LED is inverted, but it works OK

[anonymous]

LED is inverted, yes.

The LED does not work by default as in /etc/uci-defaults/01_leds there is no default for the board of the W8970.

[VittGam]

I've fixed the LED inversion in r47909, r47910, r47911 and r47913.

Also with the latest trunk an entry for the phy0tpt LED trigger is automatically created in the newer 01_leds.

So this ticket can be finally closed.