--- /dev/null
+#ifndef MSP_VR_OCULUSRIFTSYSTEM_PRIVATE_H_
+#define MSP_VR_OCULUSRIFTSYSTEM_PRIVATE_H_
+
+#include <OVR.h>
+#include "oculusriftsystem.h"
+
+namespace Msp {
+namespace VR {
+
+struct OculusRiftSystem::Private
+{
+ ovrHmd ovr_hmd;
+ ovrFrameTiming frame_timing;
+};
+
+} // namespace VR
+} // namespace Msp
+
+#endif