This package contains launch files for using OpenNI-compliant devices in ROS. It supports the Asus Xtion, Xtion Pro, and multiple version of the Primesense 1.08 and 1.09 cameras. It does NOT support any versions of the Kinect. freenect_launch or openni_launch is the recommended package for using a Kinect with ROS.
Quick start: Launch the OpenNI2 driver. This will launch the full constellation of nodelets:
roslaunch openni2_launch openni2.launch
More is documented http://docs.ros.org/api/openni2_launch/html/