Turn the Caps Lock LED on, while keep Caps Lock status is off
You can get a list of all controllable LEDs by checking the content of the virtual directory /sys/class/leds
:
$ ls /sys/class/leds/
input5::capslock input5::numlock input5::scrolllock
On my system, there are only the three keyboard LEDs. If your output looks different, make sure you use the correct names instead below!
Each file is a symbolic link to a directory holding several properties of that LED:
$ ls '/sys/class/leds/input5::capslock'
brightness device max_brightness power subsystem trigger uevent
The only thing which is important for us is the brightness
file content.
0
means the LED is off.1
means the LED is on. (Assuming themax_brightness
file holds the value 1 - on special keyboards the LED might maybe support multiple brightness values?)
We get the current LED state by checking the brightness
file's content (it's currently off):
$ cat '/sys/class/leds/input5::capslock/brightness'
0
To switch the LED on, we must set that file's content to 1
:
$ echo 1 | sudo tee '/sys/class/leds/input5::capslock/brightness'
1
To switch the LED on during every boot, you might want to append the command below to your /etc/rc.local
script. It will be executed as root, therefore we don't need the sudo tee
but can use Bash output redirection:
$ echo 1 > '/sys/class/leds/input5::capslock/brightness'
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traktor
Updated on September 18, 2022Comments
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traktor almost 2 years
I have a magicforce smart 68 kb now and it would look better if the Caps Lock LED would emit light too.
I do not even has a Caps Lock function on that button, because I have switched it with the left Control, and made that to be a compose key for the international layout. I was searching and trying some stuff but nothing has worked so far.
tl;dr: How do I turn on the Caps Lock LED without enabling Caps Lock?
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traktor over 8 years
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