tree 8ef231877a8d1b326b0140dd23f0d729881a331d
parent 3b5e9c8a1df344c18ca314872c3143e3b25fa32a
author Jan Kundrát <jan.kundrat@cesnet.cz> 1533837535 +0200
committer Jan Kundrát <jan.kundrat@cesnet.cz> 1534831741 +0200

clearfog: setup LEDs for SFP and LINE/EXPRESS indication

At first, refactor this so that we only have one single package for
userspace LED control. We're still using two system units because the
"status everything is OK" should only be given at the very end of the
boot. The regular LED setup for, e.g., link state monitoring on the
other hand should be performed ASAP.

There's no support for DTS-based trigger setup, which means that we have
to go via userspace. There's sadly no clear way of obtaining the GPIO#
from userspace (`lsgpio` and `gpiofind` return something else) so we
have to rely on debugfs :(.

Change-Id: I835f7e9232a30a54da6454ab4e342ae5b2384b47