diff --git a/Projects/AVRISP-MKII/AVRISP-MKII.c b/Projects/AVRISP-MKII/AVRISP-MKII.c
index 71b6da7cd4684246a56f5447d32c2cdc3cc6e953..cbcf009c9b5d00bf51269b5bb00bf02f7d8e1f97 100644
--- a/Projects/AVRISP-MKII/AVRISP-MKII.c
+++ b/Projects/AVRISP-MKII/AVRISP-MKII.c
@@ -97,12 +97,12 @@ void EVENT_USB_Device_ConfigurationChanged(void)
 {
 	bool ConfigSuccess = true;
 
-	/* Setup AVRISP Data Endpoint(s) */
+	/* Setup AVRISP Data OUT endpoint */
 	ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_OUT_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
 
-	#if defined(LIBUSB_DRIVER_COMPAT)
-	ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_IN_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
-	#endif
+	/* Setup AVRISP Data IN endpoint if it is using a physically different endpoint */
+	if (AVRISP_DATA_IN_EPADDR != AVRISP_DATA_OUT_EPADDR)
+	  ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_IN_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
 
 	/* Indicate endpoint configuration success or failure */
 	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
diff --git a/Projects/XPLAINBridge/XPLAINBridge.c b/Projects/XPLAINBridge/XPLAINBridge.c
index 3bd1fbf559c33d493aff677d9d2c8f26437712b9..e7d9b248698692c34f30731459970b7520f3931a 100644
--- a/Projects/XPLAINBridge/XPLAINBridge.c
+++ b/Projects/XPLAINBridge/XPLAINBridge.c
@@ -226,9 +226,8 @@ void EVENT_USB_Device_ConfigurationChanged(void)
 	{
 		ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_OUT_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
 
-		#if defined(LIBUSB_DRIVER_COMPAT)
-		ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_IN_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
-		#endif
+		if (AVRISP_DATA_IN_EPADDR != AVRISP_DATA_OUT_EPADDR)
+		  ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_IN_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
 
 		/* Configure the V2 protocol packet handler */
 		V2Protocol_Init();