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diff --git a/LibOVR/Src/OVR_Linux_HMDDevice.h b/LibOVR/Src/OVR_Linux_HMDDevice.h
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+/************************************************************************************
+
+Filename    :   OVR_Linux_HMDDevice.h
+Content     :   Linux HMDDevice implementation
+Created     :   June 17, 2013
+Authors     :   Brant Lewis
+
+Copyright   :   Copyright 2013 Oculus VR, Inc. All Rights reserved.
+
+Use of this software is subject to the terms of the Oculus license
+agreement provided at the time of installation or download, or which
+otherwise accompanies this software in either electronic or hard copy form.
+
+*************************************************************************************/
+
+#ifndef OVR_Linux_HMDDevice_h
+#define OVR_Linux_HMDDevice_h
+
+#include "OVR_Linux_DeviceManager.h"
+#include "OVR_Profile.h"
+
+namespace OVR { namespace Linux {
+
+class HMDDevice;
+
+//-------------------------------------------------------------------------------------
+
+// HMDDeviceFactory enumerates attached Oculus HMD devices.
+//
+// This is currently done by matching monitor device strings.
+
+class HMDDeviceFactory : public DeviceFactory
+{
+public:
+    static HMDDeviceFactory Instance;
+
+    // Enumerates devices, creating and destroying relevant objects in manager.
+    virtual void EnumerateDevices(EnumerateVisitor& visitor);
+
+protected:
+    DeviceManager* getManager() const { return (DeviceManager*) pManager; }
+};
+
+
+class HMDDeviceCreateDesc : public DeviceCreateDesc
+{
+    friend class HMDDevice;
+
+protected:
+    enum
+    {
+        Contents_Screen     = 1,
+        Contents_Distortion = 2,
+        Contents_7Inch      = 4,
+    };
+    String      DeviceId;
+    String      DisplayDeviceName;
+    int         DesktopX, DesktopY;
+    unsigned    Contents;
+    unsigned    HResolution, VResolution;
+    float       HScreenSize, VScreenSize;
+    long        DisplayId;
+    float       DistortionK[4];
+
+public:
+    HMDDeviceCreateDesc(DeviceFactory* factory, const String& displayDeviceName, long dispId);
+    HMDDeviceCreateDesc(const HMDDeviceCreateDesc& other);
+
+    virtual DeviceCreateDesc* Clone() const
+    {
+        return new HMDDeviceCreateDesc(*this);
+    }
+
+    virtual DeviceBase* NewDeviceInstance();
+
+    virtual MatchResult MatchDevice(const DeviceCreateDesc& other,
+                                    DeviceCreateDesc**) const;
+
+    // Matches device by path.
+    virtual bool MatchDevice(const String& path);
+
+    virtual bool UpdateMatchedCandidate(const DeviceCreateDesc&, bool* newDeviceFlag = NULL);
+
+    virtual bool GetDeviceInfo(DeviceInfo* info) const;
+
+    // Requests the currently used default profile. This profile affects the
+    // settings reported by HMDInfo. 
+    Profile* GetProfileAddRef() const;
+
+    ProfileType GetProfileType() const
+    {
+        return (HResolution >= 1920) ? Profile_RiftDKHD : Profile_RiftDK1;
+    }
+
+
+    void  SetScreenParameters(int x, int y, unsigned hres, unsigned vres, float hsize, float vsize)
+    {
+        DesktopX = x;
+        DesktopY = y;
+        HResolution = hres;
+        VResolution = vres;
+        HScreenSize = hsize;
+        VScreenSize = vsize;
+        Contents |= Contents_Screen;
+    }
+    void SetDistortion(const float* dks)
+    {
+        for (int i = 0; i < 4; i++)
+            DistortionK[i] = dks[i];
+        Contents |= Contents_Distortion;
+    }
+
+    void Set7Inch() { Contents |= Contents_7Inch; }
+
+    bool Is7Inch() const;
+};
+
+
+//-------------------------------------------------------------------------------------
+
+// HMDDevice represents an Oculus HMD device unit. An instance of this class
+// is typically created from the DeviceManager.
+//  After HMD device is created, we its sensor data can be obtained by 
+//  first creating a Sensor object and then wrappig it in SensorFusion.
+
+class HMDDevice : public DeviceImpl<OVR::HMDDevice>
+{
+public:
+    HMDDevice(HMDDeviceCreateDesc* createDesc);
+    ~HMDDevice();    
+
+    virtual bool Initialize(DeviceBase* parent);
+    virtual void Shutdown();
+
+    // Requests the currently used default profile. This profile affects the
+    // settings reported by HMDInfo. 
+    virtual Profile*    GetProfile() const;
+    virtual const char* GetProfileName() const;
+    virtual bool        SetProfileName(const char* name);
+
+    // Query associated sensor.
+    virtual OVR::SensorDevice* GetSensor();  
+
+protected:
+    HMDDeviceCreateDesc* getDesc() const { return (HMDDeviceCreateDesc*)pCreateDesc.GetPtr(); }
+
+    // User name for the profile used with this device.
+    String               ProfileName;
+    mutable Ptr<Profile> pCachedProfile;
+};
+
+
+}} // namespace OVR::Linux
+
+#endif // OVR_Linux_HMDDevice_h
+