Returns the first parent of a registry entry in a plane.
- macOS 10.0+
- Mac Catalyst 13.0+
The registry entry whose parent to look up.
The name of an existing registry plane. Plane names are defined in IOKitKeys.h, eg. kIOServicePlane.
The first parent of the registry entry, on success. The parent must be released by the caller.
A kern_return_t error code.
This function will return the parent to which the registry entry was first attached in a plane.