LED use, customization ?

[dukla2000]

BTW, I wasn't able to make any LED work at all

OK, open a terminal and first check what you are running, e.g.:

Code:

$ uname -a
Linux dukla 5.10.0-1-danctnix #1 SMP Tue Dec 15 09:44:29 +07 2020 aarch64 GNU/Linux

Then grab superuser permissions:

Code:

$ sudo su
[root@dukla alarm]#

Then, to e.g. set blue LED to flash when eMMC is used:

Code:

# echo mmc2 > '/sys/class/leds/blue:indicator/trigger'
[root@dukla alarm]#

and exit, first from superuser then from terminal:

Code:

# exit
exit
alarm@dukla:~$ exit