Fixed Endpoint_Write_Control_Stream_* functions not sending a terminating IN when the given data length is zero.

Demos/Device/ClassDriver/AudioInput/AudioInput.c

@@ -102,10 +102,10 @@ void ProcessNextSample(void)
 		/* Audio sample is ADC value scaled to fit the entire range */
 		int16_t AudioSample = ((SAMPLE_MAX_RANGE / ADC_MAX_RANGE) * ADC_GetResult());
 		
-#if defined(MICROPHONE_BIASED_TO_HALF_RAIL)
+		#if defined(MICROPHONE_BIASED_TO_HALF_RAIL)
 		/* Microphone is biased to half rail voltage, subtract the bias from the sample value */
 		AudioSample -= (SAMPLE_MAX_RANGE / 2));
-#endif
+		#endif
 
 		Audio_Device_WriteSample16(&Microphone_Audio_Interface, AudioSample);
 	}

Demos/Device/ClassDriver/GenericHID/Descriptors.h

@@ -42,7 +42,7 @@
 		#include <LUFA/Drivers/USB/USB.h>
 		#include <LUFA/Drivers/USB/Class/HID.h>
 
-	/** Type Defines: */
+	/* Type Defines: */
 		/** Type define for the device configuration descriptor structure. This must be defined in the
 		 *  application code, as the configuration descriptor contains several sub-descriptors which
 		 *  vary between devices, and which describe the device's usage to the host.

Demos/Device/ClassDriver/GenericHID/GenericHID.c

@@ -42,9 +42,9 @@ uint8_t PrevHIDReportBuffer[GENERIC_REPORT_SIZE];
 /** Structure to contain reports from the host, so that they can be echoed back upon request */
 struct
 {
-	uint8_t ReportID;
+	uint8_t  ReportID;
 	uint16_t ReportSize;
-	uint8_t ReportData[GENERIC_REPORT_SIZE];
+	uint8_t  ReportData[GENERIC_REPORT_SIZE];
 } HIDReportEcho;
 
 /** LUFA HID Class driver interface configuration and state information. This structure is

Demos/Device/LowLevel/AudioInput/AudioInput.c

@@ -169,10 +169,10 @@ void USB_Audio_Task(void)
 		/* Audio sample is ADC value scaled to fit the entire range */
 		int16_t AudioSample = ((SAMPLE_MAX_RANGE / ADC_MAX_RANGE) * ADC_GetResult());
 		
-#if defined(MICROPHONE_BIASED_TO_HALF_RAIL)
+		#if defined(MICROPHONE_BIASED_TO_HALF_RAIL)
 		/* Microphone is biased to half rail voltage, subtract the bias from the sample value */
 		AudioSample -= (SAMPLE_MAX_RANGE / 2));
-#endif
+		#endif
 
 		/* Write the sample to the buffer */
 		Endpoint_Write_Word_LE(AudioSample);

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

@@ -2,6 +2,9 @@ uint8_t TEMPLATE_FUNC_NAME (void* Buffer, uint16_t Length)
 {
 	uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length));
 	
+	if (!(Length))
+	  Endpoint_ClearOUT();
+	
 	while (Length)
 	{
 		if (Endpoint_IsSETUPReceived())

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

@@ -5,7 +5,9 @@ uint8_t TEMPLATE_FUNC_NAME (const void* Buffer, uint16_t Length)
 	
 	if (Length > USB_ControlRequest.wLength)
 	  Length = USB_ControlRequest.wLength;
-	
+	else if (!(Length))
+	  Endpoint_ClearIN();
+
 	while (Length || LastPacketFull)
 	{
 		if (Endpoint_IsSETUPReceived())

LUFA/ManPages/ChangeLog.txt

@@ -51,6 +51,7 @@
   *  - Fixed HID host Class driver report send/receive report broken when issued through the control pipe
   *  - Fixed HOST_STATE_AS_GPIOR compile time option being ignored when in host mode (thanks to David Lyons)
   *  - Fixed LowLevel Keyboard demo not saving the issues report only after it has been sent to the host
+  *  - Fixed Endpoint_Write_Control_Stream_* functions not sending a terminating IN when given data Length is zero
   *
   *  \section Sec_ChangeLog090924 Version 090924
   *