How do I get the Oculus Rift's headset's position and rotation?

I’m looking for the functions to get the position and rotation data of the rift headset itself in Unity.

I have the Oculus integration SDK installed and want to avoid using any pre-fabs.

I think you can atleast get the raw position and rotation data like this.

OVRPose tracker = OVRManager.tracker.GetPose();

Vector3 pos = tracker.position;

Quaternion rot = tracker.orientation;