Hello,
I have the Netgear integration and it returns the data for each port as expected. I'm trying to create a card for each entry that has an IP address, including the mac and the host_name. How can I get to the diagnostic data itself with this data to populate a card? I can access the attributes but I'm stuck on this one right now.
There is no automated way to access the diagnostic information. It's only a manual process. That diagnostic data likely only exists via HA's websocket api.
If you can see the data you want in the developer tools under the state tab, then it is easy to get into a card.
If not, then you need to figure out a device at to make a sensor for it.
Maybe SNMP sensor can do it.
My assumption is that they are referring to the diagnostic data hidden behind the diagnostic data button some integrations provide on the device page.
Probably, but the same information might be found in other places too.
I just have some possible options for such places.