My goal is to add proper DPI stats gathered by nDPId's collectd interface to luci. The stats are already processed by a collectd exec plugin.
My question: What needs to be done to show those values in Statistics->Graph?
I am kind of confused, because the documentation I've found so far seems to be a bit outdated.
Is there any (more or less) up-to-date tutorial/documentation how luci works, especially the collectd part would be of interest for me.