Use the framework provided GlobalInterruptEnable() function instead of the AVR8/XMEGA specific sei() macro, for future demo/project portability.

Demos/Device/ClassDriver/AudioInput/AudioInput.c

@@ -67,7 +67,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/AudioOutput/AudioOutput.c

@@ -67,7 +67,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c

@@ -108,7 +108,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/GenericHID/GenericHID.c

@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/Joystick/Joystick.c

@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/Keyboard/Keyboard.c

@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c

@@ -93,7 +93,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/KeyboardMouseMultiReport/KeyboardMouseMultiReport.c

@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/MIDI/MIDI.c

@@ -69,7 +69,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/MassStorage/MassStorage.c

@@ -70,7 +70,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.c

@@ -93,7 +93,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/Mouse/Mouse.c

@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c

@@ -85,7 +85,7 @@ int main(void)
 	Webserver_Init();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c

@@ -83,7 +83,7 @@ int main(void)
 	CDC_Device_CreateStream(&VirtualSerial_CDC_Interface, &USBSerialStream);
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/VirtualSerialMassStorage/VirtualSerialMassStorage.c

@@ -108,7 +108,7 @@ int main(void)
 	CDC_Device_CreateStream(&VirtualSerial_CDC_Interface, &USBSerialStream);
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c

@@ -98,7 +98,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{