Here is a list of all files with brief descriptions:

jni_layer.h
vrpn_3DConnexion.C
vrpn_3DConnexion.h
vrpn_3DMicroscribe.C
vrpn_3DMicroscribe.h
vrpn_3Space.C
vrpn_3Space.h
vrpn_5DT16.C
vrpn_5DT16.h
vrpn_Adafruit.C
vrpn_Adafruit.h
vrpn_ADBox.C
vrpn_ADBox.h
vrpn_Analog.C
vrpn_Analog.h
vrpn_Analog_5dt.C
vrpn_Analog_5dt.h
vrpn_Analog_5dtUSB.C	Implemendation of 5DT USB (HID) dataglove driver
vrpn_Analog_5dtUSB.h	Header for 5DT USB (HID) dataglove driver
vrpn_Analog_Output.C
vrpn_Analog_Output.h
vrpn_Analog_Radamec_SPI.C
vrpn_Analog_Radamec_SPI.h
vrpn_Analog_USDigital_A2.C
vrpn_Analog_USDigital_A2.h
vrpn_Android.C
vrpn_Android.h
vrpn_Assert.C	Implementation of assert handlers
vrpn_Assert.h	Header for assert macros
vrpn_Atmel.C
vrpn_Atmel.h
vrpn_Auxiliary_Logger.C
vrpn_Auxiliary_Logger.h
vrpn_BaseClass.C
vrpn_BaseClass.h	All types of client/server/peer objects in VRPN should be derived from the vrpn_BaseClass type described here
vrpn_BiosciencesTools.C
vrpn_BiosciencesTools.h
vrpn_Button.C
vrpn_Button.h
vrpn_Button_NI_DIO24.C
vrpn_Button_NI_DIO24.h
vrpn_Button_USB.h
vrpn_CerealBox.C
vrpn_CerealBox.h
vrpn_CHProducts_Controller_Raw.C
vrpn_CHProducts_Controller_Raw.h
vrpn_Configure.h
vrpn_Connection.C
vrpn_Connection.h
vrpn_ConnectionPtr.h	Header
vrpn_Contour.C
vrpn_Contour.h
vrpn_DevInput.C
vrpn_DevInput.h
vrpn_Dial.C
vrpn_Dial.h
vrpn_DirectXFFJoystick.C
vrpn_DirectXFFJoystick.h
vrpn_DirectXRumblePad.C
vrpn_DirectXRumblePad.h
vrpn_DreamCheeky.C
vrpn_DreamCheeky.h
vrpn_Dyna.C
vrpn_Dyna.h
vrpn_EndpointContainer.C	Implementation
vrpn_EndpointContainer.h	Header
vrpn_Event.C
vrpn_Event.h
vrpn_Event_Analog.C
vrpn_Event_Analog.h
vrpn_Event_Mouse.C
vrpn_Event_Mouse.h
vrpn_FileConnection.C
vrpn_FileConnection.h
vrpn_FileController.C
vrpn_FileController.h
vrpn_FixedPoint.h	Header
vrpn_Flock.C
vrpn_Flock.h
vrpn_Flock_Parallel.C
vrpn_Flock_Parallel.h
vrpn_ForceDevice.C
vrpn_ForceDevice.h
vrpn_ForceDeviceServer.C
vrpn_ForceDeviceServer.h
vrpn_Forwarder.C
vrpn_Forwarder.h
vrpn_ForwarderController.C
vrpn_ForwarderController.h
vrpn_Freespace.C
vrpn_Freespace.h
vrpn_FunctionGenerator.C
vrpn_FunctionGenerator.h
vrpn_Futaba.C
vrpn_Futaba.h
vrpn_GlobalHapticsOrb.C
vrpn_GlobalHapticsOrb.h
vrpn_Griffin.C
vrpn_Griffin.h
vrpn_HashST.h
vrpn_HumanInterface.C
vrpn_HumanInterface.h
vrpn_i2c_helpers.h
vrpn_IDEA.C
vrpn_IDEA.h
vrpn_Imager.C
vrpn_Imager.h
vrpn_Imager_Stream_Buffer.C
vrpn_Imager_Stream_Buffer.h
vrpn_ImmersionBox.C
vrpn_ImmersionBox.h
vrpn_inertiamouse.C
vrpn_inertiamouse.h
vrpn_JoyFly.C
vrpn_JoyFly.h
vrpn_Joylin.C
vrpn_Joylin.h
vrpn_Joywin32.C
vrpn_Joywin32.h
vrpn_Keyboard.C
vrpn_Keyboard.h
vrpn_LamportClock.C
vrpn_LamportClock.h
vrpn_Laputa.C	Drivers for Laputa VR devices
vrpn_Laputa.h	Header for Laputa VR devices
vrpn_Local_HIDAPI.C
vrpn_Log.h
vrpn_Logitech_Controller_Raw.C
vrpn_Logitech_Controller_Raw.h
vrpn_LUDL.C
vrpn_LUDL.h
vrpn_Magellan.C
vrpn_Magellan.h
vrpn_MainloopContainer.h	Header
vrpn_MainloopObject.h	Header
vrpn_MessageMacros.h	Header containing macros formerly duplicated in a lot of implementation files
vrpn_Microsoft_Controller_Raw.C
vrpn_Microsoft_Controller_Raw.h
vrpn_Mouse.C
vrpn_Mouse.h
vrpn_Mutex.C
vrpn_Mutex.h
vrpn_NationalInstruments.C
vrpn_NationalInstruments.h
vrpn_Nidaq.C
vrpn_Nidaq.h
vrpn_nikon_controls.C
vrpn_nikon_controls.h
vrpn_nVidia_shield_controller.C
vrpn_nVidia_shield_controller.h
vrpn_Oculus.C	Drivers for various Oculus devices
vrpn_Oculus.h	Header for various Oculus devices
vrpn_OmegaTemperature.C
vrpn_OmegaTemperature.h
vrpn_OneEuroFilter.h	Header file that completely implements a direction and orientation filter on tracking reports; it does not implement an actual server, it is intended to be built into a server
vrpn_OwningPtr.h	Header
vrpn_OzzMaker.C
vrpn_OzzMaker.h
vrpn_Poser.C
vrpn_Poser.h
vrpn_Poser_Analog.C
vrpn_Poser_Analog.h
vrpn_Poser_Tek4662.C
vrpn_Poser_Tek4662.h
vrpn_raw_sgibox.C
vrpn_raw_sgibox.h
vrpn_RedundantTransmission.C
vrpn_RedundantTransmission.h
vrpn_Retrolink.C
vrpn_Retrolink.h
vrpn_Saitek_Controller_Raw.C
vrpn_Saitek_Controller_Raw.h
vrpn_SendTextMessageStreamProxy.h	Header allowing use of a output stream-style method of sending text messages from devices
vrpn_Serial.C
vrpn_Serial.h	Vrpn_Serial: Pulls all the serial port routines into one file to make porting to new operating systems easier
vrpn_SerialPort.C	Implementation
vrpn_SerialPort.h	Header
vrpn_sgibox.C
vrpn_sgibox.h
vrpn_Shared.C
vrpn_Shared.h
vrpn_SharedObject.C
vrpn_SharedObject.h
vrpn_Sound.C
vrpn_Sound.h
vrpn_Spaceball.C
vrpn_Spaceball.h
vrpn_Streaming_Arduino.C
vrpn_Streaming_Arduino.h
vrpn_Text.C
vrpn_Text.h
vrpn_Thread.C	Implementation
vrpn_Thread.h	Header containing vrpn_Thread, vrpn_Semaphore (formerly in vrpn_Shared.h), as well as a lock-guard class
vrpn_Tng3.C
vrpn_Tng3.h
vrpn_Tracker.C
vrpn_Tracker.h
vrpn_Tracker_3DMouse.C
vrpn_Tracker_3DMouse.h
vrpn_Tracker_AnalogFly.C
vrpn_Tracker_AnalogFly.h
vrpn_Tracker_ButtonFly.C
vrpn_Tracker_ButtonFly.h
vrpn_Tracker_Colibri.C
vrpn_Tracker_Colibri.h
vrpn_Tracker_Crossbow.C
vrpn_Tracker_Crossbow.h
vrpn_Tracker_DTrack.C
vrpn_Tracker_DTrack.h
vrpn_Tracker_Fastrak.C
vrpn_Tracker_Fastrak.h
vrpn_Tracker_Filter.C
vrpn_Tracker_Filter.h	Header for a class of trackers that read from one tracker and apply a filter to the inputs, sending out filtered outputs under a different tracker name
vrpn_Tracker_GameTrak.C
vrpn_Tracker_GameTrak.h
vrpn_Tracker_GPS.C
vrpn_Tracker_GPS.h
vrpn_Tracker_IMU.C
vrpn_Tracker_IMU.h
vrpn_Tracker_isense.C
vrpn_Tracker_isense.h
vrpn_Tracker_Isotrak.C
vrpn_Tracker_Isotrak.h
vrpn_Tracker_JsonNet.C
vrpn_Tracker_JsonNet.h
vrpn_Tracker_Liberty.C
vrpn_Tracker_Liberty.h
vrpn_Tracker_LibertyHS.C
vrpn_Tracker_LibertyHS.h
vrpn_Tracker_MotionNode.C
vrpn_Tracker_MotionNode.h
vrpn_Tracker_NDI_Polaris.C
vrpn_Tracker_NDI_Polaris.h
vrpn_Tracker_NovintFalcon.C
vrpn_Tracker_NovintFalcon.h
vrpn_Tracker_OSVRHackerDevKit.C	Implemendation of the OSVR Hacker Dev Kit HMD tracker
vrpn_Tracker_OSVRHackerDevKit.h	Header for OSVR Hacker Dev Kit
vrpn_Tracker_PDI.C
vrpn_Tracker_PDI.h
vrpn_Tracker_PhaseSpace.C
vrpn_Tracker_PhaseSpace.h
vrpn_Tracker_RazerHydra.C	Implementation
vrpn_Tracker_RazerHydra.h	Header
vrpn_Tracker_SpacePoint.C
vrpn_Tracker_SpacePoint.h
vrpn_Tracker_ThalmicLabsMyo.C
vrpn_Tracker_ThalmicLabsMyo.h
vrpn_Tracker_TrivisioColibri.C
vrpn_Tracker_TrivisioColibri.h
vrpn_Tracker_ViewPoint.C
vrpn_Tracker_ViewPoint.h
vrpn_Tracker_WiimoteHead.C	Implementation of Wii Remote head tracking filter driver
vrpn_Tracker_WiimoteHead.h	Vrpn_Tracker interface provided by processing Wii Remote data for head tracking
vrpn_Tracker_Wintracker.C
vrpn_Tracker_Wintracker.h
vrpn_Tracker_zSight.C
vrpn_Tracker_zSight.h
vrpn_Types.h
vrpn_UNC_Joystick.C
vrpn_UNC_Joystick.h
vrpn_Vality.C
vrpn_Vality.h
vrpn_VPJoystick.C
vrpn_VPJoystick.h
vrpn_Wanda.C
vrpn_Wanda.h
vrpn_WiiMote.C
vrpn_WiiMote.h
vrpn_WindowsH.h	Header to minimally include windows.h
vrpn_XInputGamepad.C
vrpn_XInputGamepad.h
vrpn_Xkeys.C
vrpn_Xkeys.h
vrpn_YEI_3Space.C
vrpn_YEI_3Space.h
vrpn_Zaber.C
vrpn_Zaber.h