Removed complicated logic for the Endpoint_ConfigureEndpoint() function to use inlined or function called versions depending of if the given bank size is a compile time constant, as the compiler does a better job of optimizing with basic code.

Changed over all device demos to use a clearer algorithm for the configuring of the application's endpoints.

30 files changed, 217 insertions, 322 deletions

diff --git a/Demos/Device/ClassDriver/AudioInput/AudioInput.c b/Demos/Device/ClassDriver/AudioInput/AudioInput.c
index 32caffcce..ceaeb89a1 100644
--- a/Demos/Device/ClassDriver/AudioInput/AudioInput.c
+++ b/Demos/Device/ClassDriver/AudioInput/AudioInput.c
@@ -136,10 +136,11 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
-	
-	if (!(Audio_Device_ConfigureEndpoints(&Microphone_Audio_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	bool ConfigSuccess = true;
+
+	ConfigSuccess &= Audio_Device_ConfigureEndpoints(&Microphone_Audio_Interface);
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c b/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
index 8587093cd..cf2eb2d30 100644
--- a/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
+++ b/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
@@ -188,10 +188,11 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
-	
-	if (!(Audio_Device_ConfigureEndpoints(&Speaker_Audio_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	bool ConfigSuccess = true;
+
+	ConfigSuccess &= Audio_Device_ConfigureEndpoints(&Speaker_Audio_Interface);
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c b/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
index ffbc12c7f..915c8fc98 100644
--- a/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
+++ b/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
@@ -175,13 +175,12 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	if (!(CDC_Device_ConfigureEndpoints(&VirtualSerial1_CDC_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial1_CDC_Interface);
+	ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial2_CDC_Interface);
 
-	if (!(CDC_Device_ConfigureEndpoints(&VirtualSerial2_CDC_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/GenericHID/GenericHID.c b/Demos/Device/ClassDriver/GenericHID/GenericHID.c
index 8b51b7657..4fe58a8a2 100644
--- a/Demos/Device/ClassDriver/GenericHID/GenericHID.c
+++ b/Demos/Device/ClassDriver/GenericHID/GenericHID.c
@@ -113,12 +113,13 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	if (!(HID_Device_ConfigureEndpoints(&Generic_HID_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	ConfigSuccess &= HID_Device_ConfigureEndpoints(&Generic_HID_Interface);
 
 	USB_Device_EnableSOFEvents();
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/Joystick/Joystick.c b/Demos/Device/ClassDriver/Joystick/Joystick.c
index e2804d6e0..622106fd4 100644
--- a/Demos/Device/ClassDriver/Joystick/Joystick.c
+++ b/Demos/Device/ClassDriver/Joystick/Joystick.c
@@ -107,12 +107,13 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	if (!(HID_Device_ConfigureEndpoints(&Joystick_HID_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	ConfigSuccess &= HID_Device_ConfigureEndpoints(&Joystick_HID_Interface);
 
 	USB_Device_EnableSOFEvents();
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/Keyboard/Keyboard.c b/Demos/Device/ClassDriver/Keyboard/Keyboard.c
index 80f0ad988..8d8503031 100644
--- a/Demos/Device/ClassDriver/Keyboard/Keyboard.c
+++ b/Demos/Device/ClassDriver/Keyboard/Keyboard.c
@@ -107,12 +107,13 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	if (!(HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	ConfigSuccess &= HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface);
 
 	USB_Device_EnableSOFEvents();
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c b/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
index 43634eac3..6ba7ce3d0 100644
--- a/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
+++ b/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
@@ -130,15 +130,14 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	if (!(HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	
-	if (!(HID_Device_ConfigureEndpoints(&Mouse_HID_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	ConfigSuccess &= HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface);
+	ConfigSuccess &= HID_Device_ConfigureEndpoints(&Mouse_HID_Interface);
 
 	USB_Device_EnableSOFEvents();
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/MIDI/MIDI.c b/Demos/Device/ClassDriver/MIDI/MIDI.c
index 04d4bdb21..f627d55be 100644
--- a/Demos/Device/ClassDriver/MIDI/MIDI.c
+++ b/Demos/Device/ClassDriver/MIDI/MIDI.c
@@ -180,10 +180,13 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
-	
-	if (!(MIDI_Device_ConfigureEndpoints(&Keyboard_MIDI_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	bool ConfigSuccess = true;
+
+	ConfigSuccess &= MIDI_Device_ConfigureEndpoints(&Keyboard_MIDI_Interface);
+
+	USB_Device_EnableSOFEvents();
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/MassStorage/MassStorage.c b/Demos/Device/ClassDriver/MassStorage/MassStorage.c
index b1ec7d375..a8f21f173 100644
--- a/Demos/Device/ClassDriver/MassStorage/MassStorage.c
+++ b/Demos/Device/ClassDriver/MassStorage/MassStorage.c
@@ -110,10 +110,13 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
+
+	ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
+
+	USB_Device_EnableSOFEvents();
 
-	if (!(MS_Device_ConfigureEndpoints(&Disk_MS_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.c b/Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.c
index 4ac5ebde3..ba6213076 100644
--- a/Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.c
+++ b/Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.c
@@ -136,15 +136,14 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
-
-	if (!(MS_Device_ConfigureEndpoints(&Disk_MS_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	bool ConfigSuccess = true;
 
-	if (!(HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
+	ConfigSuccess &= HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface);
 
 	USB_Device_EnableSOFEvents();
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/Mouse/Mouse.c b/Demos/Device/ClassDriver/Mouse/Mouse.c
index 19ca0132a..6efdb9973 100644
--- a/Demos/Device/ClassDriver/Mouse/Mouse.c
+++ b/Demos/Device/ClassDriver/Mouse/Mouse.c
@@ -107,12 +107,13 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	if (!(HID_Device_ConfigureEndpoints(&Mouse_HID_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	ConfigSuccess &= HID_Device_ConfigureEndpoints(&Mouse_HID_Interface);
 
 	USB_Device_EnableSOFEvents();
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c b/Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c
index 76c49068e..d332b206a 100644
--- a/Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c
+++ b/Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c
@@ -123,10 +123,11 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	if (!(RNDIS_Device_ConfigureEndpoints(&Ethernet_RNDIS_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	ConfigSuccess &= RNDIS_Device_ConfigureEndpoints(&Ethernet_RNDIS_Interface);
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c b/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c
index c87b33ca7..1ee0b344c 100644
--- a/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c
+++ b/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c
@@ -153,10 +153,11 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	if (!(CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c b/Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c
index 6dfdafba7..86cdb4e7a 100644
--- a/Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c
+++ b/Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c
@@ -164,15 +164,14 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	if (!(CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+	ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
+	ConfigSuccess &= HID_Device_ConfigureEndpoints(&Mouse_HID_Interface);
 
-	if (!(HID_Device_ConfigureEndpoints(&Mouse_HID_Interface)))
-	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	  
 	USB_Device_EnableSOFEvents();
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);	  
 }
 
 /** Event handler for the library USB Unhandled Control Request event. */
diff --git a/Demos/Device/Incomplete/Sideshow/Sideshow.c b/Demos/Device/Incomplete/Sideshow/Sideshow.c
index f6ece61b0..644e957fd 100644
--- a/Demos/Device/Incomplete/Sideshow/Sideshow.c
+++ b/Demos/Device/Incomplete/Sideshow/Sideshow.c
@@ -95,22 +95,16 @@ void EVENT_USB_Device_Disconnect(void)
 
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	/* Setup Sideshow In and Out Endpoints */
-	if (!(Endpoint_ConfigureEndpoint(SIDESHOW_IN_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_IN, SIDESHOW_IO_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	/* Setup Sideshow Data Endpoints */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(SIDESHOW_IN_EPNUM,  EP_TYPE_BULK, ENDPOINT_DIR_IN,
+	                                            SIDESHOW_IO_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(SIDESHOW_OUT_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_OUT,
+	                                            SIDESHOW_IO_EPSIZE, ENDPOINT_BANK_SINGLE);
 
-	if (!(Endpoint_ConfigureEndpoint(SIDESHOW_OUT_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_OUT, SIDESHOW_IO_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 void EVENT_USB_Device_UnhandledControlRequest(void)
diff --git a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c
index e174aa998..94b86873f 100644
--- a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c
+++ b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c
@@ -118,29 +118,18 @@ void EVENT_USB_Device_Disconnect(void)
  */

 void EVENT_USB_Device_ConfigurationChanged(void)

 {

-	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+	bool ConfigSuccess = true;

 

 	/* Setup TMC In, Out and Notification Endpoints */

-	if (!(Endpoint_ConfigureEndpoint(TMC_IN_EPNUM, EP_TYPE_BULK,

-		                             ENDPOINT_DIR_IN, TMC_IO_EPSIZE,

-	                                 ENDPOINT_BANK_SINGLE)))

-	{

-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

-	}

-

-	if (!(Endpoint_ConfigureEndpoint(TMC_OUT_EPNUM, EP_TYPE_BULK,

-		                             ENDPOINT_DIR_OUT, TMC_IO_EPSIZE,

-	                                 ENDPOINT_BANK_SINGLE)))

-	{

-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

-	}

-

-	if (!(Endpoint_ConfigureEndpoint(TMC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

-		                             ENDPOINT_DIR_IN, TMC_NOTIFICATION_EPSIZE,

-	                                 ENDPOINT_BANK_SINGLE)))

-	{

-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

-	}

+	ConfigSuccess &= Endpoint_ConfigureEndpoint(TMC_IN_EPNUM,  EP_TYPE_BULK, ENDPOINT_DIR_IN,

+	                                            TMC_IO_EPSIZE, ENDPOINT_BANK_SINGLE);

+	ConfigSuccess &= Endpoint_ConfigureEndpoint(TMC_OUT_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_OUT,

+	                                            TMC_IO_EPSIZE, ENDPOINT_BANK_SINGLE);

+	ConfigSuccess &= Endpoint_ConfigureEndpoint(TMC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,

+	                                            TMC_IO_EPSIZE, ENDPOINT_BANK_SINGLE);

+

+	/* Indicate endpoint configuration success or failure */

+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);

 }

 

 /** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/AudioInput/AudioInput.c b/Demos/Device/LowLevel/AudioInput/AudioInput.c
index 6655a27ee..eb29f34f7 100644
--- a/Demos/Device/LowLevel/AudioInput/AudioInput.c
+++ b/Demos/Device/LowLevel/AudioInput/AudioInput.c
@@ -110,16 +110,14 @@ void EVENT_USB_Device_Disconnect(void)
  */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	/* Setup audio stream endpoint */
-	if (!(Endpoint_ConfigureEndpoint(AUDIO_STREAM_EPNUM, EP_TYPE_ISOCHRONOUS,
-		                             ENDPOINT_DIR_IN, AUDIO_STREAM_EPSIZE,
-	                                 ENDPOINT_BANK_DOUBLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	/* Setup Audio Stream Endpoint */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(AUDIO_STREAM_EPNUM, EP_TYPE_ISOCHRONOUS, ENDPOINT_DIR_IN,
+	                                            AUDIO_STREAM_EPSIZE, ENDPOINT_BANK_DOUBLE);
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
diff --git a/Demos/Device/LowLevel/AudioOutput/AudioOutput.c b/Demos/Device/LowLevel/AudioOutput/AudioOutput.c
index f2a8867b7..2732afc13 100644
--- a/Demos/Device/LowLevel/AudioOutput/AudioOutput.c
+++ b/Demos/Device/LowLevel/AudioOutput/AudioOutput.c
@@ -137,16 +137,14 @@ void EVENT_USB_Device_Disconnect(void)
  */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	/* Setup audio stream endpoint */
-	if (!(Endpoint_ConfigureEndpoint(AUDIO_STREAM_EPNUM, EP_TYPE_ISOCHRONOUS,
-		                             ENDPOINT_DIR_OUT, AUDIO_STREAM_EPSIZE,
-	                                 ENDPOINT_BANK_DOUBLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	/* Setup Audio Stream Endpoint */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(AUDIO_STREAM_EPNUM, EP_TYPE_ISOCHRONOUS, ENDPOINT_DIR_OUT,
+	                                            AUDIO_STREAM_EPSIZE, ENDPOINT_BANK_DOUBLE);
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
diff --git a/Demos/Device/LowLevel/DualVirtualSerial/DualVirtualSerial.c b/Demos/Device/LowLevel/DualVirtualSerial/DualVirtualSerial.c
index 29fd57f29..84a329118 100644
--- a/Demos/Device/LowLevel/DualVirtualSerial/DualVirtualSerial.c
+++ b/Demos/Device/LowLevel/DualVirtualSerial/DualVirtualSerial.c
@@ -119,57 +119,31 @@ void EVENT_USB_Device_Disconnect(void)
  *  of the USB device after enumeration - the device endpoints are configured and the CDC management tasks are started.
  */
 void EVENT_USB_Device_ConfigurationChanged(void)
-{							   
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
-
-	/* Setup CDC Notification, Rx and Tx Endpoints for the first CDC */
-	if (!(Endpoint_ConfigureEndpoint(CDC1_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	if (!(Endpoint_ConfigureEndpoint(CDC1_TX_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	if (!(Endpoint_ConfigureEndpoint(CDC1_RX_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	/* Setup CDC Notification, Rx and Tx Endpoints for the second CDC */
-	if (!(Endpoint_ConfigureEndpoint(CDC2_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	if (!(Endpoint_ConfigureEndpoint(CDC2_TX_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	if (!(Endpoint_ConfigureEndpoint(CDC2_RX_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
+{
+	bool ConfigSuccess = true;
+
+	/* Setup first CDC Interface's Endpoints */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC1_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+	                                            CDC_NOTIFICATION_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC1_TX_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_IN,
+	                                            CDC_TXRX_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC1_RX_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_OUT,
+	                                            CDC_TXRX_EPSIZE, ENDPOINT_BANK_SINGLE);
+
+	/* Setup second CDC Interface's Endpoints */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC2_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+	                                            CDC_NOTIFICATION_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC2_TX_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_IN,
+	                                            CDC_TXRX_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC2_RX_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_OUT,
+	                                            CDC_TXRX_EPSIZE, ENDPOINT_BANK_SINGLE);
+
 	/* Reset line encoding baud rates so that the host knows to send new values */
 	LineEncoding1.BaudRateBPS = 0;
 	LineEncoding2.BaudRateBPS = 0;
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
diff --git a/Demos/Device/LowLevel/GenericHID/GenericHID.c b/Demos/Device/LowLevel/GenericHID/GenericHID.c
index 9929358c8..5146efdda 100644
--- a/Demos/Device/LowLevel/GenericHID/GenericHID.c
+++ b/Demos/Device/LowLevel/GenericHID/GenericHID.c
@@ -95,24 +95,16 @@ void EVENT_USB_Device_Disconnect(void)
  */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	/* Setup Generic IN Report Endpoint */
-	if (!(Endpoint_ConfigureEndpoint(GENERIC_IN_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_IN, GENERIC_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	/* Setup Generic OUT Report Endpoint */
-	if (!(Endpoint_ConfigureEndpoint(GENERIC_OUT_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_OUT, GENERIC_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	/* Setup HID Report Endpoints */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(GENERIC_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+	                                            GENERIC_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(GENERIC_OUT_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_OUT,
+	                                            GENERIC_EPSIZE, ENDPOINT_BANK_SINGLE);
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
diff --git a/Demos/Device/LowLevel/Joystick/Joystick.c b/Demos/Device/LowLevel/Joystick/Joystick.c
index 561914a5c..08c4892ea 100644
--- a/Demos/Device/LowLevel/Joystick/Joystick.c
+++ b/Demos/Device/LowLevel/Joystick/Joystick.c
@@ -93,16 +93,14 @@ void EVENT_USB_Device_Disconnect(void)
  */ 
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	/* Setup Joystick Report Endpoint */
-	if (!(Endpoint_ConfigureEndpoint(JOYSTICK_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_IN, JOYSTICK_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	/* Setup HID Report Endpoint */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(JOYSTICK_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+	                                            JOYSTICK_EPSIZE, ENDPOINT_BANK_SINGLE);
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
diff --git a/Demos/Device/LowLevel/Keyboard/Descriptors.c b/Demos/Device/LowLevel/Keyboard/Descriptors.c
index 4963c7b1a..a96d4cc46 100644
--- a/Demos/Device/LowLevel/Keyboard/Descriptors.c
+++ b/Demos/Device/LowLevel/Keyboard/Descriptors.c
@@ -160,7 +160,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
 
-			.EndpointAddress        = (ENDPOINT_DESCRIPTOR_DIR_IN | KEYBOARD_EPNUM),
+			.EndpointAddress        = (ENDPOINT_DESCRIPTOR_DIR_IN | KEYBOARD_IN_EPNUM),
 			.Attributes             = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 			.EndpointSize           = KEYBOARD_EPSIZE,
 			.PollingIntervalMS      = 0x0A
@@ -170,7 +170,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
 
-			.EndpointAddress        = (ENDPOINT_DESCRIPTOR_DIR_OUT | KEYBOARD_LEDS_EPNUM),
+			.EndpointAddress        = (ENDPOINT_DESCRIPTOR_DIR_OUT | KEYBOARD_OUT_EPNUM),
 			.Attributes             = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 			.EndpointSize           = KEYBOARD_EPSIZE,
 			.PollingIntervalMS      = 0x0A
diff --git a/Demos/Device/LowLevel/Keyboard/Descriptors.h b/Demos/Device/LowLevel/Keyboard/Descriptors.h
index d4b9ebf79..126b71bfa 100644
--- a/Demos/Device/LowLevel/Keyboard/Descriptors.h
+++ b/Demos/Device/LowLevel/Keyboard/Descriptors.h
@@ -77,13 +77,13 @@
 					
 	/* Macros: */
 		/** Endpoint number of the Keyboard HID reporting IN endpoint. */
-		#define KEYBOARD_EPNUM               1
+		#define KEYBOARD_IN_EPNUM         1
 
 		/** Endpoint number of the Keyboard HID reporting OUT endpoint. */
-		#define KEYBOARD_LEDS_EPNUM          2
+		#define KEYBOARD_OUT_EPNUM        2
 		
 		/** Size in bytes of the Keyboard HID reporting IN and OUT endpoints. */		
-		#define KEYBOARD_EPSIZE              8
+		#define KEYBOARD_EPSIZE           8
 
 		/** Descriptor header type value, to indicate a HID class HID descriptor. */
 		#define DTYPE_HID                 0x21
diff --git a/Demos/Device/LowLevel/Keyboard/Keyboard.c b/Demos/Device/LowLevel/Keyboard/Keyboard.c
index 71b586176..12bf5ba63 100644
--- a/Demos/Device/LowLevel/Keyboard/Keyboard.c
+++ b/Demos/Device/LowLevel/Keyboard/Keyboard.c
@@ -114,26 +114,19 @@ void EVENT_USB_Device_Disconnect(void)
  */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {	
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	/* Setup Keyboard Keycode Report Endpoint */
-	if (!(Endpoint_ConfigureEndpoint(KEYBOARD_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_IN, KEYBOARD_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	/* Setup Keyboard LED Report Endpoint */
-	if (!(Endpoint_ConfigureEndpoint(KEYBOARD_LEDS_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_OUT, KEYBOARD_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
+	/* Setup HID Report Endpoints */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+	                                            KEYBOARD_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_OUT_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_OUT,
+	                                            KEYBOARD_EPSIZE, ENDPOINT_BANK_SINGLE);
+
+	/* Turn on Start-of-Frame events for tracking HID report period exiry */
 	USB_Device_EnableSOFEvents();
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);	
 }
 
 /** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
@@ -332,7 +325,7 @@ void SendNextReport(void)
 	}
 	
 	/* Select the Keyboard Report Endpoint */
-	Endpoint_SelectEndpoint(KEYBOARD_EPNUM);
+	Endpoint_SelectEndpoint(KEYBOARD_IN_EPNUM);
 
 	/* Check if Keyboard Endpoint Ready for Read/Write and if we should send a new report */
 	if (Endpoint_IsReadWriteAllowed() && SendReport)
@@ -352,7 +345,7 @@ void SendNextReport(void)
 void ReceiveNextReport(void)
 {
 	/* Select the Keyboard LED Report Endpoint */
-	Endpoint_SelectEndpoint(KEYBOARD_LEDS_EPNUM);
+	Endpoint_SelectEndpoint(KEYBOARD_OUT_EPNUM);
 
 	/* Check if Keyboard LED Endpoint contains a packet */
 	if (Endpoint_IsOUTReceived())
diff --git a/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c b/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
index 03d6799f5..687dc3123 100644
--- a/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
+++ b/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
@@ -101,32 +101,20 @@ void EVENT_USB_Device_Disconnect(void)
  */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	/* Setup Keyboard Report Endpoint */
-	if (!(Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_IN, HID_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	/* Setup Keyboard LED Report Endpoint */
-	if (!(Endpoint_ConfigureEndpoint(KEYBOARD_OUT_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_OUT, HID_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	/* Setup Keyboard HID Report Endpoints */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+	                                            HID_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_OUT_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_OUT,
+	                                            HID_EPSIZE, ENDPOINT_BANK_SINGLE);
 
-	/* Setup Mouse Report Endpoint */
-	if (!(Endpoint_ConfigureEndpoint(MOUSE_IN_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_IN, HID_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	/* Setup Mouse HID Report Endpoint */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(MOUSE_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+	                                            HID_EPSIZE, ENDPOINT_BANK_SINGLE);
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);	
 }
 
 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific
diff --git a/Demos/Device/LowLevel/MIDI/MIDI.c b/Demos/Device/LowLevel/MIDI/MIDI.c
index a9843ed8c..5570dd16e 100644
--- a/Demos/Device/LowLevel/MIDI/MIDI.c
+++ b/Demos/Device/LowLevel/MIDI/MIDI.c
@@ -91,23 +91,16 @@ void EVENT_USB_Device_Disconnect(void)
  */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	/* Setup MIDI stream endpoints */
-	if (!(Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_OUT, MIDI_STREAM_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}	
-	
-	if (!(Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_IN, MIDI_STREAM_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	/* Setup MIDI Data Endpoints */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_OUT,
+	                                            MIDI_STREAM_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_IN,
+	                                            MIDI_STREAM_EPSIZE, ENDPOINT_BANK_SINGLE);
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);	
 }
 
 /** Task to handle the generation of MIDI note change events in response to presses of the board joystick, and send them
diff --git a/Demos/Device/LowLevel/MassStorage/MassStorage.c b/Demos/Device/LowLevel/MassStorage/MassStorage.c
index 5b0ab17ca..4b0b582dc 100644
--- a/Demos/Device/LowLevel/MassStorage/MassStorage.c
+++ b/Demos/Device/LowLevel/MassStorage/MassStorage.c
@@ -108,23 +108,16 @@ void EVENT_USB_Device_Disconnect(void)
  */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
 
-	/* Setup Mass Storage In and Out Endpoints */
-	if (!(Endpoint_ConfigureEndpoint(MASS_STORAGE_IN_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_IN, MASS_STORAGE_IO_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	if (!(Endpoint_ConfigureEndpoint(MASS_STORAGE_OUT_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_OUT, MASS_STORAGE_IO_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}							   
+	/* Setup Mass Storage Data Endpoints */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(MASS_STORAGE_IN_EPNUM,  EP_TYPE_BULK, ENDPOINT_DIR_IN,
+	                                            MASS_STORAGE_IO_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(MASS_STORAGE_OUT_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_OUT,
+	                                            MASS_STORAGE_IO_EPSIZE, ENDPOINT_BANK_SINGLE);
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);							   
 }
 
 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific
diff --git a/Demos/Device/LowLevel/Mouse/Mouse.c b/Demos/Device/LowLevel/Mouse/Mouse.c
index 97aa55ff4..1cc6d8849 100644
--- a/Demos/Device/LowLevel/Mouse/Mouse.c
+++ b/Demos/Device/LowLevel/Mouse/Mouse.c
@@ -113,18 +113,17 @@ void EVENT_USB_Device_Disconnect(void)
  */ 
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
-	
-	/* Setup Mouse Report Endpoint */
-	if (!(Endpoint_ConfigureEndpoint(MOUSE_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_IN, MOUSE_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	bool ConfigSuccess = true;
 
+	/* Setup HID Report Endpoint */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(MOUSE_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+	                                            MOUSE_EPSIZE, ENDPOINT_BANK_SINGLE);
+
+	/* Turn on Start-of-Frame events for tracking HID report period exiry */
 	USB_Device_EnableSOFEvents();
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);	
 }
 
 /** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
diff --git a/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c b/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
index d11829dd6..6b3e2c473 100644
--- a/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
+++ b/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
@@ -98,30 +98,18 @@ void EVENT_USB_Device_Disconnect(void)
  */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
-
-	/* Setup CDC Notification, Rx and Tx Endpoints */
-	if (!(Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}							   
-
-	if (!(Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-
-	if (!(Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
+	bool ConfigSuccess = true;
+
+	/* Setup RNDIS Data Endpoints */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_IN,
+	                                            CDC_TXRX_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_OUT,
+	                                            CDC_TXRX_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+	                                            CDC_NOTIFICATION_EPSIZE, ENDPOINT_BANK_SINGLE);
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
 /** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
diff --git a/Demos/Device/LowLevel/VirtualSerial/VirtualSerial.c b/Demos/Device/LowLevel/VirtualSerial/VirtualSerial.c
index 64b3a2cea..633cdcf88 100644
--- a/Demos/Device/LowLevel/VirtualSerial/VirtualSerial.c
+++ b/Demos/Device/LowLevel/VirtualSerial/VirtualSerial.c
@@ -105,33 +105,21 @@ void EVENT_USB_Device_Disconnect(void)
  */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-	/* Indicate USB connected and ready */
-	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+	bool ConfigSuccess = true;
+
+	/* Setup CDC Data Endpoints */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+	                                            CDC_NOTIFICATION_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_IN,
+	                                            CDC_TXRX_EPSIZE, ENDPOINT_BANK_SINGLE);
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_OUT,
+	                                            CDC_TXRX_EPSIZE, ENDPOINT_BANK_SINGLE);
 
-	/* Setup CDC Notification, Rx and Tx Endpoints */
-	if (!(Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
-		                             ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	if (!(Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
-	if (!(Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,
-		                             ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
-	                                 ENDPOINT_BANK_SINGLE)))
-	{
-		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-	}
-	
 	/* Reset line encoding baud rate so that the host knows to send new values */
 	LineEncoding.BaudRateBPS = 0;
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);	
 }
 
 /** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific