PC Engines apu2 LEDs

apu2-leds.sh

#!/usr/bin/env bash
set -euo pipefail

ltab=(
  1/brightness=1
  2/trigger=disk-activity
  3/trigger=netdev
  3/device_name=enp1s0
  3/link=1
  3/tx=1
  3/rx=1
)

sysfs_prefix=/sys/class/leds/apu2:green:led

sudo modprobe ledtrig-netdev

for ent in "${ltab[@]}"; do
  read -r attr val <<<"${ent/=/ }"
  echo -n "$attr = "
  echo "${val}" | sudo tee "${sysfs_prefix}${attr}"
done