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diff --git a/lib/lufa/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c b/lib/lufa/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
deleted file mode 100644
index 0210ff55c0..0000000000
--- a/lib/lufa/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2017.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
- Permission to use, copy, modify, distribute, and sell this
- software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
- all copies and that both that the copyright notice and this
- permission notice and warranty disclaimer appear in supporting
- documentation, and that the name of the author not be used in
- advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- The author disclaims all warranties with regard to this
- software, including all implied warranties of merchantability
- and fitness. In no event shall the author be liable for any
- special, indirect or consequential damages or any damages
- whatsoever resulting from loss of use, data or profits, whether
- in an action of contract, negligence or other tortious action,
- arising out of or in connection with the use or performance of
- this software.
-*/
-
-/** \file
- *
- * Main source file for the DualVirtualSerial demo. This file contains the main tasks of
- * the demo and is responsible for the initial application hardware configuration.
- */
-
-#include "DualVirtualSerial.h"
-
-/** LUFA CDC Class driver interface configuration and state information. This structure is
- * passed to all CDC Class driver functions, so that multiple instances of the same class
- * within a device can be differentiated from one another. This is for the first CDC interface,
- * which sends strings to the host for each joystick movement.
- */
-USB_ClassInfo_CDC_Device_t VirtualSerial1_CDC_Interface =
- {
- .Config =
- {
- .ControlInterfaceNumber = INTERFACE_ID_CDC1_CCI,
- .DataINEndpoint =
- {
- .Address = CDC1_TX_EPADDR,
- .Size = CDC_TXRX_EPSIZE,
- .Banks = 1,
- },
- .DataOUTEndpoint =
- {
- .Address = CDC1_RX_EPADDR,
- .Size = CDC_TXRX_EPSIZE,
- .Banks = 1,
- },
- .NotificationEndpoint =
- {
- .Address = CDC1_NOTIFICATION_EPADDR,
- .Size = CDC_NOTIFICATION_EPSIZE,
- .Banks = 1,
- },
- },
- };
-
-/** LUFA CDC Class driver interface configuration and state information. This structure is
- * passed to all CDC Class driver functions, so that multiple instances of the same class
- * within a device can be differentiated from one another. This is for the second CDC interface,
- * which echos back all received data from the host.
- */
-USB_ClassInfo_CDC_Device_t VirtualSerial2_CDC_Interface =
- {
- .Config =
- {
- .ControlInterfaceNumber = INTERFACE_ID_CDC2_CCI,
- .DataINEndpoint =
- {
- .Address = CDC2_TX_EPADDR,
- .Size = CDC_TXRX_EPSIZE,
- .Banks = 1,
- },
- .DataOUTEndpoint =
- {
- .Address = CDC2_RX_EPADDR,
- .Size = CDC_TXRX_EPSIZE,
- .Banks = 1,
- },
- .NotificationEndpoint =
- {
- .Address = CDC2_NOTIFICATION_EPADDR,
- .Size = CDC_NOTIFICATION_EPSIZE,
- .Banks = 1,
- },
-
- },
- };
-
-
-/** Main program entry point. This routine contains the overall program flow, including initial
- * setup of all components and the main program loop.
- */
-int main(void)
-{
- SetupHardware();
-
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
- GlobalInterruptEnable();
-
- for (;;)
- {
- CheckJoystickMovement();
-
- /* Discard all received data on the first CDC interface */
- CDC_Device_ReceiveByte(&VirtualSerial1_CDC_Interface);
-
- /* Echo all received data on the second CDC interface */
- int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial2_CDC_Interface);
- if (!(ReceivedByte < 0))
- CDC_Device_SendByte(&VirtualSerial2_CDC_Interface, (uint8_t)ReceivedByte);
-
- CDC_Device_USBTask(&VirtualSerial1_CDC_Interface);
- CDC_Device_USBTask(&VirtualSerial2_CDC_Interface);
- USB_USBTask();
- }
-}
-
-/** Configures the board hardware and chip peripherals for the demo's functionality. */
-void SetupHardware(void)
-{
-#if (ARCH == ARCH_AVR8)
- /* Disable watchdog if enabled by bootloader/fuses */
- MCUSR &= ~(1 << WDRF);
- wdt_disable();
-
- /* Disable clock division */
- clock_prescale_set(clock_div_1);
-#elif (ARCH == ARCH_XMEGA)
- /* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
- XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
- XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
-
- /* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
- XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
- XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
-
- PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
-#endif
-
- /* Hardware Initialization */
- Joystick_Init();
- LEDs_Init();
- USB_Init();
-}
-
-/** Checks for changes in the position of the board joystick, sending strings to the host upon each change
- * through the first of the CDC interfaces.
- */
-void CheckJoystickMovement(void)
-{
- uint8_t JoyStatus_LCL = Joystick_GetStatus();
- char* ReportString = NULL;
- static bool ActionSent = false;
-
- if (JoyStatus_LCL & JOY_UP)
- ReportString = "Joystick Up\r\n";
- else if (JoyStatus_LCL & JOY_DOWN)
- ReportString = "Joystick Down\r\n";
- else if (JoyStatus_LCL & JOY_LEFT)
- ReportString = "Joystick Left\r\n";
- else if (JoyStatus_LCL & JOY_RIGHT)
- ReportString = "Joystick Right\r\n";
- else if (JoyStatus_LCL & JOY_PRESS)
- ReportString = "Joystick Pressed\r\n";
- else
- ActionSent = false;
-
- if ((ReportString != NULL) && (ActionSent == false))
- {
- ActionSent = true;
-
- CDC_Device_SendString(&VirtualSerial1_CDC_Interface, ReportString);
- }
-}
-
-/** Event handler for the library USB Connection event. */
-void EVENT_USB_Device_Connect(void)
-{
- LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
-}
-
-/** Event handler for the library USB Disconnection event. */
-void EVENT_USB_Device_Disconnect(void)
-{
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-}
-
-/** Event handler for the library USB Configuration Changed event. */
-void EVENT_USB_Device_ConfigurationChanged(void)
-{
- bool ConfigSuccess = true;
-
- ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial1_CDC_Interface);
- ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial2_CDC_Interface);
-
- LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
-}
-
-/** Event handler for the library USB Control Request reception event. */
-void EVENT_USB_Device_ControlRequest(void)
-{
- CDC_Device_ProcessControlRequest(&VirtualSerial1_CDC_Interface);
- CDC_Device_ProcessControlRequest(&VirtualSerial2_CDC_Interface);
-}
-
-/** CDC class driver callback function the processing of changes to the virtual
- * control lines sent from the host..
- *
- * \param[in] CDCInterfaceInfo Pointer to the CDC class interface configuration structure being referenced
- */
-void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t *const CDCInterfaceInfo)
-{
- /* You can get changes to the virtual CDC lines in this callback; a common
- use-case is to use the Data Terminal Ready (DTR) flag to enable and
- disable CDC communications in your application when set to avoid the
- application blocking while waiting for a host to become ready and read
- in the pending data from the USB endpoints.
- */
- bool HostReady = (CDCInterfaceInfo->State.ControlLineStates.HostToDevice & CDC_CONTROL_LINE_OUT_DTR) != 0;
-
- (void)HostReady;
-
- if (CDCInterfaceInfo == &VirtualSerial1_CDC_Interface)
- {
- // CDC interface 1's host is ready to send/receive data if HostReady is true
- }
- else
- {
- // CDC interface 2's host is ready to send/receive data if HostReady is true
- }
-}