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Add support for setting power LED via systemctl (#60)
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* Add support for setting power LED via systemctl

* Add documentation for rudimentary ugreen-power-led.service

* Add "Type=oneshot" and "RemainAfterExit=true" as suggested
This commit is contained in:
Berthold Höllmann
2025-06-12 04:14:48 +02:00
committed by GitHub
parent dc04db484c
commit c33c05ae67
4 changed files with 59 additions and 0 deletions
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2
README.md
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@@ -210,11 +210,13 @@ Please see `scripts/ugreen-leds.conf` for an example.
# change enp2s0 to the network device you want to monitor # change enp2s0 to the network device you want to monitor
systemctl start ugreen-netdevmon@enp2s0 systemctl start ugreen-netdevmon@enp2s0
systemctl start ugreen-diskiomon systemctl start ugreen-diskiomon
systemctl start ugreen-power-led
# if you confirm that everything works well, # if you confirm that everything works well,
# run the command below to make the service start at boot # run the command below to make the service start at boot
systemctl enable ugreen-netdevmon@enp2s0 systemctl enable ugreen-netdevmon@enp2s0
systemctl enable ugreen-diskiomon systemctl enable ugreen-diskiomon
systemctl enable ugreen-power-led
``` ```
- (_Optional_) To reduce the CPU usage of blinking LEDs when disks are active, you can enter the `scripts` directory and do the following things: - (_Optional_) To reduce the CPU usage of blinking LEDs when disks are active, you can enter the `scripts` directory and do the following things:

13
scripts/systemd/ugreen-power-led.service Normal file
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@@ -0,0 +1,13 @@
[Unit]
Description=UGREEN LEDs daemon for configuring power LED
After=ugreen-probe-leds.service
Requires=ugreen-probe-leds.service
[Service]
Type=oneshot
ExecStart=/usr/bin/ugreen-power-led
RemainAfterExit=true
StandardOutput=journal
[Install]
WantedBy=multi-user.target

14
scripts/ugreen-leds.conf
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@@ -110,3 +110,17 @@ COLOR_NETDEV_LINK_10000="255 255 255"
# color of the netdev when unable to ping the gateway # color of the netdev when unable to ping the gateway
COLOR_NETDEV_GATEWAY_UNREACHABLE="255 0 0" COLOR_NETDEV_GATEWAY_UNREACHABLE="255 0 0"
# =========== parameters for power LED ===========
# Blink settings for the power LED
# * none: no blinking (default)
# * breath <delay_on> <delay_off>: breathing blink
# * blink <delay_on> <delay_off>: blinking
BLINK_TYPE_POWER="none"
# brighness of the power LED (default: 255)
BRIGHTNESS_POWER=255
# color of the power LED (default: 255 255 255)
COLOR_POWER="255 255 255"

30
scripts/ugreen-power-led Normal file
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@@ -0,0 +1,30 @@
#!/usr/bin/bash
# use variables from config file (unRAID specific)
if [[ -f /boot/config/plugins/ugreenleds-driver/settings.cfg ]]; then
source /boot/config/plugins/ugreenleds-driver/settings.cfg
fi
# load environment variables
if [[ -f /etc/ugreen-leds.conf ]]; then
source /etc/ugreen-leds.conf
fi
# Blink settings for the power LED
# * none: no blinking
# * breath <delay_on> <delay_off>: breathing blink
# * blink <delay_on> <delay_off>: blinking
BLINK_TYPE_POWER=${BLINK_TYPE_POWER:="none"}
# brighness of the power LED
BRIGHTNESS_POWER=${BRIGHTNESS_POWER:=255}
# color of the power LED
COLOR_POWER=${COLOR_POWER:="255 255 255"}
# initialize LEDs
if [[ -d /sys/class/leds/power ]]; then
echo "$BLINK_TYPE_POWER" > /sys/class/leds/power/blink_type
echo "$BRIGHTNESS_POWER" > /sys/class/leds/power/brightness
echo "$COLOR_POWER" > /sys/class/leds/power/color
fi