Disable LED lights on Atheros wireless devices to improve network speed

echo 'none' > /sys/class/leds/ath9k_htc-phy0/trigger

Disables the LED trigger for Atheros-based wireless devices (e.g., using ath9k_htc driver) by setting the trigger to 'none'. This can prevent network performance issues caused by excessive power draw from the LED. Used this on TP-Link TL-WN721N WiFi dongle

networking [kb:57]