0x0001 featureSet

Enumerates the features a device implements. getCount() returns how many features there are; getFeatureId(index) returns the ID (and type flags — hidden, obsolete, etc.) at each index.

Together with 0x0000 root this lets a client discover a device’s full capability set without prior knowledge of the model.

Spec: Logitech HID++ 2.0 — x0001 featureSet. Used by: capability discovery.

Full function reference coming soon.