Added new ENDPOINT_*_BusSuspended error code to the Endpoint function, so that the stream functions early-abort if the bus is suspended before or during a transfer.

LUFA/Drivers/USB/LowLevel/Endpoint.c

@@ -120,6 +120,8 @@ uint8_t Endpoint_WaitUntilReady(void)
 		
 		if (USB_DeviceState == DEVICE_STATE_Unattached)
 		  return ENDPOINT_READYWAIT_DeviceDisconnected;
+		else if (USB_DeviceState == DEVICE_STATE_Suspended)
+		  return ENDPOINT_READYWAIT_BusSuspended;
 		else if (Endpoint_IsStalled())
 		  return ENDPOINT_READYWAIT_EndpointStalled;
 			  

LUFA/Drivers/USB/LowLevel/Endpoint.h

@@ -443,7 +443,11 @@
 				ENDPOINT_READYWAIT_DeviceDisconnected      = 2,	/**< Device was disconnected from the host while
 				                                                 *   waiting for the endpoint to become ready.
 				                                                 */
-				ENDPOINT_READYWAIT_Timeout                 = 3, /**< The host failed to accept or send the next packet
+				ENDPOINT_READYWAIT_BusSuspended            = 3, /**< The USB bus has been suspended by the host and
+				                                                 *   no USB endpoint traffic can occur until the bus
+				                                                 *   has resumed.
+				                                                 */
+				ENDPOINT_READYWAIT_Timeout                 = 4, /**< The host failed to accept or send the next packet
 				                                                 *   within the software timeout period set by the
 				                                                 *   \ref USB_STREAM_TIMEOUT_MS macro.
 				                                                 */
@@ -462,11 +466,15 @@
 				ENDPOINT_RWSTREAM_DeviceDisconnected = 2, /**< Device was disconnected from the host during
 				                                           *   the transfer.
 				                                           */
-				ENDPOINT_RWSTREAM_Timeout            = 3, /**< The host failed to accept or send the next packet
+				ENDPOINT_RWSTREAM_BusSuspended       = 3, /**< The USB bus has been suspended by the host and
+				                                           *   no USB endpoint traffic can occur until the bus
+				                                           *   has resumed.
+				                                           */
+				ENDPOINT_RWSTREAM_Timeout            = 4, /**< The host failed to accept or send the next packet
 				                                           *   within the software timeout period set by the
 				                                           *   \ref USB_STREAM_TIMEOUT_MS macro.
 				                                           */
-				ENDPOINT_RWSTREAM_CallbackAborted    = 4, /**< Indicates that the stream's callback function
+				ENDPOINT_RWSTREAM_CallbackAborted    = 5, /**< Indicates that the stream's callback function
 			                                               *   aborted the transfer early.
 				                                           */
 			};
@@ -482,6 +490,10 @@
 				ENDPOINT_RWCSTREAM_DeviceDisconnected = 2, /**< Device was disconnected from the host during
 				                                            *   the transfer.
 				                                            */
+				ENDPOINT_RWCSTREAM_BusSuspended       = 3, /**< The USB bus has been suspended by the host and
+				                                            *   no USB endpoint traffic can occur until the bus
+				                                            *   has resumed.
+				                                            */
 			};
 
 		/* Inline Functions: */

LUFA/Drivers/USB/LowLevel/Template/Template_Endpoint_Control_R.c

@@ -12,6 +12,8 @@ uint8_t TEMPLATE_FUNC_NAME (void* Buffer, uint16_t Length)
 
 		if (USB_DeviceState == DEVICE_STATE_Unattached)
 		  return ENDPOINT_RWCSTREAM_DeviceDisconnected;
+		else if (USB_DeviceState == DEVICE_STATE_Suspended)
+		  return ENDPOINT_RWCSTREAM_BusSuspended;
 		  
 		if (Endpoint_IsOUTReceived())
 		{
@@ -29,6 +31,8 @@ uint8_t TEMPLATE_FUNC_NAME (void* Buffer, uint16_t Length)
 	{
 		if (USB_DeviceState == DEVICE_STATE_Unattached)
 		  return ENDPOINT_RWCSTREAM_DeviceDisconnected;
+		else if (USB_DeviceState == DEVICE_STATE_Suspended)
+		  return ENDPOINT_RWCSTREAM_BusSuspended;
 	}
 	
 	return ENDPOINT_RWCSTREAM_NoError;

LUFA/Drivers/USB/LowLevel/Template/Template_Endpoint_Control_W.c

@@ -18,6 +18,8 @@ uint8_t TEMPLATE_FUNC_NAME (const void* Buffer, uint16_t Length)
 		
 		if (USB_DeviceState == DEVICE_STATE_Unattached)
 		  return ENDPOINT_RWCSTREAM_DeviceDisconnected;
+		else if (USB_DeviceState == DEVICE_STATE_Suspended)
+		  return ENDPOINT_RWCSTREAM_BusSuspended;
 		  
 		if (Endpoint_IsINReady())
 		{
@@ -39,6 +41,8 @@ uint8_t TEMPLATE_FUNC_NAME (const void* Buffer, uint16_t Length)
 	{
 		if (USB_DeviceState == DEVICE_STATE_Unattached)
 		  return ENDPOINT_RWCSTREAM_DeviceDisconnected;
+		else if (USB_DeviceState == DEVICE_STATE_Suspended)
+		  return ENDPOINT_RWCSTREAM_BusSuspended;
 	}
 
 	return ENDPOINT_RWCSTREAM_NoError;

LUFA/ManPages/ChangeLog.txt

@@ -13,6 +13,8 @@
   *  - Added new Relay Controller Board project (thanks to OBinou)
   *  - Added board hardware driver support for the Teensy, USBTINY MKII, Benito and JM-DB-U2 lines of third party USB AVR boards
   *  - Added new ATTR_NO_INIT variable attribute for global variables that should not be automatically cleared on startup
+  *  - Added new ENDPOINT_*_BusSuspended error code to the Endpoint function, so that the stream functions early-abort if the bus
+  *    is suspended before or during a transfer
   *
   *  <b>Changed:</b>
   *  - AVRISP programmer project now has a more robust timeout system, allowing for an increase of the software USART speed
@@ -32,7 +34,7 @@
   *    for them to be enabled (thanks to Andrei Krainev)
   *  - The Audio_Device_IsSampleReceived() and Audio_Device_IsReadyForNextSample() functions are now inline, to reduce overhead
   *  - Removed the cast to uint16_t on the set baud rate in the USBtoSerial project, so that the higher >1M baud rates can be
-  *    selected (thanks to Steffan)
+  *    selected (thanks to Steffan Woltjer)
   *
   *  <b>Fixed:</b>
   *  - Fixed software PDI/TPI programming mode in the AVRISP project not correctly toggling just the clock pin

LUFA/ManPages/FutureChanges.txt

@@ -30,7 +30,6 @@
   *      -# Alternative (USB-IF endorsed) USB-CDC Ethernet Class
   *      -# USB Test and Measurement Class
   *      -# Finish BluetoothHost demo
-  *      -# Finish MIDI class Bootloader
   *      -# Finish SideShow demo
   *      -# Finish StandaloneProgrammer project
   *      -# Finish MIDIToneGenerator project

LUFA/ManPages/LUFAPoweredProjects.txt

@@ -40,6 +40,7 @@
  *  - CAMTRIG, a remote Camera Trigger device: http://code.astraw.com/projects/motmot/camtrig
  *  - CD Driver Emulator Dongle for ISO Files: http://cdemu.blogspot.com/
  *  - ClockTamer, a configurable clock generator: http://code.google.com/p/clock-tamer/
+ *  - EMUCOMBOX, a USB-RS422 adapter for E-Mu Emax samplers: http://users.skynet.be/emxp/EMUCOMBOX.htm
  *  - "Fingerlicking Wingdinger" (WARNING: Bad Language if no Javascript), a MIDI controller: http://noisybox.net/electronics/wingdinger/
  *  - Garmin GPS USB to NMEA standard serial sentence translator: http://github.com/nall/garmin-transmogrifier/tree/master
  *  - Generic HID Device Creator: http://generichid.sourceforge.net/

Projects/AVRISP-MKII/Lib/XPROG/XPROGTarget.c

@@ -165,9 +165,9 @@ void XPROGTarget_EnableTargetPDI(void)
 	BITBANG_PDIDATA_DDR  |= BITBANG_PDIDATA_MASK;
 	BITBANG_PDICLOCK_DDR |= BITBANG_PDICLOCK_MASK;
 	
-	/* Set DATA line low for at least 90ns to ensure that the device is ready for PDI mode to be entered */
+	/* Set DATA line low for at least 1ms to ensure that the device is ready for PDI mode to be entered */
 	BITBANG_PDIDATA_PORT &= ~BITBANG_PDIDATA_MASK;
-	_delay_us(1);
+	_delay_ms(1);
 
 	/* Set DATA line high for at least 90ns to disable /RESET functionality */
 	BITBANG_PDIDATA_PORT |= BITBANG_PDIDATA_MASK;

README.txt

@@ -10,7 +10,7 @@
                   http://www.fourwalledcubicle.com/LUFA.php
                   =========================================
 
-                 LUFA IS DONATION SUPPORTED. To support LUFA, 
+                 LUFA is donation supported. To support LUFA, 
                please donate at http://www.fourwalledcubicle.com.
 
                   For Commercial Licensing information, see