I was trying to get the input from Knuckles finger sensors using the axes from native Unity XR input, but it fails to receive any values. Other input axes like trigger/grip work just fine. I used the axes as provided here: Unity - Manual: Unity XR Input (the ones for indexFinger, middleFinger etc.)
Does anybody have the same problem, and what may be the cause? I am running this on Unity 2019.2.0f1.
This is a known issue.
When Valve released SteamVR 2.0, the existing OpenVR implementation lost access to the finger axes. There are axes there that could be used, but they don’t give us any data anymore.
Sadly, if we can’t read the data, we can’t forward it along. The moment that changes I’ll make sure this gets fixed up.