This is a copy of https://dominic.familie-radermacher.ch/computer/raspberry-pi/lan951x-led-ctl/

Original text: ----------------------------------------------------------------

lan951x-led-ctl is a command line tool to control the LEDs connected to a LAN9512 or LAN9514 ethernet controller.

Usually those LEDs show the ethernet status like "Link/Activity", "Speed" and "Duplex" mode. Using this tool you can turn them off, if you don't like a disco in your room at night ;-) Or you can turn them on/off from any shell script to show whatever status you wish.

These LAN951x ethernet and USB controllers are used on many embedded computers like Raspberry Pi (until Version 3B - but not 3B+), Olinuxino and many more.

Further info can be found at: https://dominic.familie-radermacher.ch/computer/raspberry-pi/lan951x-led-ctl/

The Git repo with the latest version is located at: https://git.familie-radermacher.ch/linux/lan951x-led-ctl.git

---

Compile:

make


step-by-step on Debian/Raspbian/Ubuntu et al.:

    sudo apt-get -qq install git libusb-1.0-0-dev
    git clone https://github.com/QuantumLibet/lan951x-led-ctl.git
    cd lan951x-led-ctl
    sudo make --directory lan951x-led-ctl DESTDIR=/usr/local

step-by-step on Alpine/musl et al.:

    doas apk add build-base musl-dev gcc git libusb-dev
    git clone https://github.com/QuantumLibet/lan951x-led-ctl.git && cd lan951x-led-ctl
    doas make

Usage:

sudo|doas lan951x-led-ctl [--fdx=x][--lnk=x][--spd=x][--version]
    where x is one of:
    0 - turn LED off
    1 - turn LED on
    s - LED shows status (eg. --lnk=s for NIC status)

Automate:

sudo tee /etc/systemd/system/rpi_blinkenlights_set_to_off.service > /dev/null <<- EOF
    [Unit]
    Description=to configure the RPi NIC LEDs to off

    [Service]
    Type=oneshot
    ExecStart=/usr/bin/sleep 15  #  RPi1; can be smaller on RPi2/3
    ExecStart=/usr/local/bin/lan951x-led-ctl  --fdx=0 --lnk=0 --spd=0
    RemainAfterExit=no

    [Install]
    WantedBy=multi-user.target
EOF

for an example, see systemd-folder

sudo systemctl enable --now --no-block rpi_blinkenlights_set_to_off.service

Source:

original developer, cmake-version:  https://dominic.familie-radermacher.ch/computer/raspberry-pi/lan951x-led-ctl/
makefile-version:  https://github.com/dumpsite/lan951x-led-ctl
general information about RPi-LEDs:  https://github.com/ccrisan/motioneyeos/wiki/Turn-Off-LEDs
general information about dtparam=pwr_led_trigger-entries in config.txt:  https://github.com/raspberrypi/firmware/issues/1742, esp. https://github.com/raspberrypi/firmware/issues/1742#issuecomment-1225910618