Renamed the PRNT_Host_SendString(), CDC_Host_SendString() and CDC_Device_SendString() functions to *_SendData(), and added new versions of the *_SendString() routines that expect a null terminated string instead.

Added new Serial_SendData() function to the Serial driver.

Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c

@@ -156,7 +156,7 @@ void CheckJoystickMovement(void)
 	{
 		ActionSent = true;
 
-		CDC_Device_SendString(&VirtualSerial1_CDC_Interface, ReportString, strlen(ReportString));
+		CDC_Device_SendString(&VirtualSerial1_CDC_Interface, ReportString);
 	}
 }
 

Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c

@@ -134,7 +134,7 @@ void CheckJoystickMovement(void)
 		fputs(ReportString, &USBSerialStream);
 
 		/* Alternatively, without the stream: */
-		// CDC_Device_SendString(&VirtualSerial_CDC_Interface, ReportString, strlen(ReportString));
+		// CDC_Device_SendString(&VirtualSerial_CDC_Interface, ReportString);
 	}
 }
 

Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c

@@ -145,7 +145,7 @@ void CheckJoystickMovement(void)
 	{
 		ActionSent = true;
 
-		CDC_Device_SendString(&VirtualSerial_CDC_Interface, ReportString, strlen(ReportString));
+		CDC_Device_SendString(&VirtualSerial_CDC_Interface, ReportString);
 	}
 }
 

Demos/Host/ClassDriver/PrinterHost/PrinterHost.c

@@ -134,7 +134,7 @@ int main(void)
 
 				printf_P(PSTR("Sending Test Page (%d bytes)...\r\n"), TestPageLength);
 
-				if (PRNT_Host_SendString(&Printer_PRNT_Interface, &TestPageData, TestPageLength) != PIPE_RWSTREAM_NoError)
+				if (PRNT_Host_SendData(&Printer_PRNT_Interface, &TestPageData, TestPageLength) != PIPE_RWSTREAM_NoError)
 				{
 					puts_P(PSTR("Error Sending Page Data.\r\n"));
 					LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

LUFA/Drivers/Peripheral/Serial.c

@@ -81,3 +81,8 @@ void Serial_SendString(const char* StringPtr)
 	}
 }
 
+void Serial_SendData(const uint8_t* Buffer, uint16_t Length)
+{
+	while (Length--)
+	  Serial_SendByte(*(Buffer++));
+}

LUFA/Drivers/Peripheral/Serial.h

@@ -117,6 +117,13 @@
 			 */
 			void Serial_SendString(const char* StringPtr) ATTR_NON_NULL_PTR_ARG(1);
 			
+			/** Transmits a given buffer located in SRAM memory through the USART.
+			 *
+			 *  \param[in] Buffer  Pointer to a buffer containing the data to send.
+			 *  \param[in] Length  Length of the data to send, in bytes.
+			 */
+			void Serial_SendData(const uint8_t* Buffer, uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
+
 		/* Inline Functions: */
 			/** Initializes the USART, ready for serial data transmission and reception. This initializes the interface to
 			 *  standard 8-bit, no parity, 1 stop bit settings suitable for most applications.

LUFA/Drivers/USB/Class/Device/CDC.c

@@ -154,14 +154,24 @@ void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
 }
 
 uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
-                              const char* const Data,
-                              const uint16_t Length)
+                              const char* const String)
 {
 	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
 	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
 
 	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);
-	return Endpoint_Write_Stream_LE(Data, Length, NULL);
+	return Endpoint_Write_Stream_LE(String, strlen(String), NULL);
+}
+
+uint8_t CDC_Device_SendData(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+                            const char* const Buffer,
+                            const uint16_t Length)
+{
+	if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+	  return ENDPOINT_RWSTREAM_DeviceDisconnected;
+
+	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);
+	return Endpoint_Write_Stream_LE(Buffer, Length, NULL);
 }
 
 uint8_t CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,

LUFA/Drivers/USB/Class/Device/CDC.h

@@ -194,23 +194,39 @@
 			void EVENT_CDC_Device_BreakSent(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
 			                                const uint8_t Duration) ATTR_NON_NULL_PTR_ARG(1);
 
-			/** Sends a given string to the attached USB host, if connected. If a host is not connected when the function is called, the
-			 *  string is discarded. Bytes will be queued for transmission to the host until either the endpoint bank becomes full, or the
-			 *  \ref CDC_Device_Flush() function is called to flush the pending data to the host. This allows for multiple bytes to be
-			 *  packed into a single endpoint packet, increasing data throughput.
+			/** Sends a given data buffer to the attached USB host, if connected. If a host is not connected when the function is
+			 *  called, the string is discarded. Bytes will be queued for transmission to the host until either the endpoint bank
+			 *  becomes full, or the \ref CDC_Device_Flush() function is called to flush the pending data to the host. This allows
+			 *  for multiple bytes to be packed into a single endpoint packet, increasing data throughput.
+			 *
+			 *  \pre This function must only be called when the Device state machine is in the \ref DEVICE_STATE_Configured state or
+			 *       the call will fail.
+			 *
+			 *  \param[in,out] CDCInterfaceInfo  Pointer to a structure containing a CDC Class configuration and state.
+			 *  \param[in]     Buffer            Pointer to a buffer containing the data to send to the device.
+			 *  \param[in]     Length            Length of the data to send to the host.
+			 *
+			 *  \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
+			 */
+			uint8_t CDC_Device_SendData(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+			                            const char* const Buffer,
+			                            const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+			/** Sends a given null terminated string to the attached USB host, if connected. If a host is not connected when
+			 *  the function is called, the string is discarded. Bytes will be queued for transmission to the host until either
+			 *  the endpoint bank becomes full, or the \ref CDC_Device_Flush() function is called to flush the pending data to
+			 *  the host. This allows for multiple bytes to be packed into a single endpoint packet, increasing data throughput.
 			 *
 			 *  \pre This function must only be called when the Device state machine is in the \ref DEVICE_STATE_Configured state or
 			 *       the call will fail.
 			 *
 			 *  \param[in,out] CDCInterfaceInfo  Pointer to a structure containing a CDC Class configuration and state.
-			 *  \param[in]     Data              Pointer to the string to send to the host.
-			 *  \param[in]     Length            Size in bytes of the string to send to the host.
+			 *  \param[in]     String            Pointer to the null terminated string to send to the host.
 			 *
 			 *  \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
 			 */
 			uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
-			                              const char* const Data,
-			                              const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+			                              const char* const String) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
 
 			/** Sends a given byte to the attached USB host, if connected. If a host is not connected when the function is called, the
 			 *  byte is discarded. Bytes will be queued for transmission to the host until either the endpoint bank becomes full, or the

LUFA/Drivers/USB/Class/Host/CDC.c

@@ -311,9 +311,26 @@ uint8_t CDC_Host_SendBreak(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
 	return USB_Host_SendControlRequest(NULL);
 }
 
+uint8_t CDC_Host_SendData(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
+                          const uint8_t* const Buffer,
+                          const uint16_t Length)
+{
+	if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
+	  return PIPE_READYWAIT_DeviceDisconnected;
+
+	uint8_t ErrorCode;
+
+	Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);
+
+	Pipe_Unfreeze();
+	ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL);
+	Pipe_Freeze();
+
+	return ErrorCode;
+}
+
 uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
-                            const char* const Data,
-                            const uint16_t Length)
+                            const char* const String)
 {
 	if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
 	  return PIPE_READYWAIT_DeviceDisconnected;
@@ -323,7 +340,7 @@ uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
 	Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);
 
 	Pipe_Unfreeze();
-	ErrorCode = Pipe_Write_Stream_LE(Data, Length, NULL);
+	ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL);
 	Pipe_Freeze();
 
 	return ErrorCode;

LUFA/Drivers/USB/Class/Host/CDC.h

@@ -197,23 +197,39 @@
 			uint8_t CDC_Host_SendBreak(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
 			                           const uint8_t Duration) ATTR_NON_NULL_PTR_ARG(1);
 
-			/** Sends a given string to the attached USB device, if connected. If a device is not connected when the function is called, the
-			 *  string is discarded. Bytes will be queued for transmission to the device until either the pipe bank becomes full, or the
-			 *  \ref CDC_Host_Flush() function is called to flush the pending data to the host. This allows for multiple bytes to be
-			 *  packed into a single pipe packet, increasing data throughput.
+			/** Sends a given data buffer to the attached USB device, if connected. If a device is not connected when the function is
+			 *  called, the data will be discarded. Bytes will be queued for transmission to the device until either the pipe bank
+			 *  becomes full, or the \ref CDC_Host_Flush() function is called to flush the pending data to the device. This allows for
+			 *  multiple bytes to be packed into a single pipe packet, increasing data throughput.
+			 *
+			 *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+			 *       call will fail.
+			 *
+			 *  \param[in,out] CDCInterfaceInfo  Pointer to a structure containing a CDC Class host configuration and state.
+			 *  \param[in]     Buffer            Pointer to a buffer containing the data to send to the device.
+			 *  \param[in]     Length            Length of the data to send to the device.
+			 *
+			 *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
+			 */
+			uint8_t CDC_Host_SendData(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
+			                          const uint8_t* const Buffer,
+			                          const uint16_t Length);
+
+			/** Sends a given null-terminated string to the attached USB device, if connected. If a device is not connected when the
+			 *  function is called, the string is discarded. Bytes will be queued for transmission to the device until either the pipe
+			 *  bank becomes full, or the \ref CDC_Host_Flush() function is called to flush the pending data to the device. This allows
+			 *  for multiple bytes to be packed into a single pipe packet, increasing data throughput.
 			 *
 			 *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 			 *       call will fail.
 			 *
 			 *  \param[in,out] CDCInterfaceInfo  Pointer to a structure containing a CDC Class host configuration and state.
-			 *  \param[in]     Data              Pointer to the string to send to the device.
-			 *  \param[in]     Length            Size in bytes of the string to send to the device.
+			 *  \param[in]     String            Pointer to the null terminated string to send to the device.
 			 *
 			 *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
 			 */
 			uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo,
-			                            const char* const Data,
-			                            const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+			                            const char* const String) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
 
 			/** Sends a given byte to the attached USB device, if connected. If a device is not connected when the function is called, the
 			 *  byte is discarded. Bytes will be queued for transmission to the device until either the pipe bank becomes full, or the

LUFA/Drivers/USB/Class/Host/Printer.c

@@ -287,8 +287,31 @@ uint8_t PRNT_Host_SendByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
 }
 
 uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
-                             void* Buffer,
-                             const uint16_t Length)
+                             void* String)
+{
+	uint8_t ErrorCode;
+
+	if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive))
+	  return PIPE_RWSTREAM_DeviceDisconnected;
+
+	Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber);
+	Pipe_Unfreeze();
+
+	if ((ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL)) != PIPE_RWSTREAM_NoError)
+	  return ErrorCode;
+
+	Pipe_ClearOUT();
+
+	ErrorCode = Pipe_WaitUntilReady();
+
+	Pipe_Freeze();
+
+	return ErrorCode;
+}
+
+uint8_t PRNT_Host_SendData(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+                           void* Buffer,
+                           const uint16_t Length)
 {
 	uint8_t ErrorCode;
 

LUFA/Drivers/USB/Class/Host/Printer.h

@@ -182,6 +182,19 @@
 			 */
 			uint8_t PRNT_Host_Flush(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 
+			/** Sends the given null terminated string to the attached printer's input endpoint.
+			 *
+			 *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+			 *       call will fail.
+			 *
+			 *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state.
+			 *  \param[in]     String             Pointer to a null terminated string to send.
+			 *
+			 *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
+			 */
+			uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+			                             void* String) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
 			/** Sends the given raw data stream to the attached printer's input endpoint. This should contain commands that the
 			 *  printer is able to understand - for example, PCL data. Not all printers accept all printer languages; see
 			 *  \ref PRNT_Host_GetDeviceID() for details on determining acceptable languages for an attached printer.
@@ -195,9 +208,9 @@
 			 *
 			 *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
 			 */
-			uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
-			                             void* Buffer,
-			                             const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+			uint8_t PRNT_Host_SendData(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+			                           void* Buffer,
+			                           const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
 
 			/** Sends a given byte to the attached USB device, if connected. If a device is not connected when the function is called, the
 			 *  byte is discarded. Bytes will be queued for transmission to the device until either the pipe bank becomes full, or the

LUFA/ManPages/ChangeLog.txt

@@ -20,6 +20,7 @@
   *   - Added new HID_DESCRIPTOR_MOUSE, HID_DESCRIPTOR_KEYBOARD, HID_DESCRIPTOR_JOYSTICK and HID_DESCRIPTOR_VENDOR macros
   *     for easy automatic creation of basic USB HID device reports
   *   - Added new MAX() and MIN() convenience macros
+  *   - Added new Serial_SendData() function to the Serial driver
   *  - Library Applications:
   *   - Added ability to write protect Mass Storage disk write operations from the host OS
   *   - Added new MIDIToneGenerator project
@@ -45,6 +46,8 @@
   *   - Renamed the low level Serial byte send/receive functions, to be consistent with the CDC class driver byte functions
   *   - Altered the behaviour of the serial byte reception function so that is is non-blocking, and now returns a negative
   *     value if no character is received (to remain consistent with the CDC class driver byte reception routines)
+  *   - Renamed the PRNT_Host_SendString(), CDC_Host_SendString() and CDC_Device_SendString() functions to *_SendData(), and
+  *     added new versions of the *_SendString() routines that expect a null terminated string instead
   *  - Library Applications:
   *   - Changed the XPLAINBridge software UART to use the regular timer CTC mode instead of the alternative CTC mode
   *     via the Input Capture register, to reduce user confusion

LUFA/ManPages/MigrationInformation.txt

@@ -35,6 +35,8 @@
  *      processed in the current transaction can be stored. If the \c BytesProcessed parameter is non \c NULL, each time the endpoint
  *      bank becomes full and the packet is sent, the routine will exit with the new \ref ENDPOINT_RWSTREAM_IncompleteTransfer
  *      error code to allow the user application to determine when to send the next chunk of data.
+ *    - The \ref CDC_Device_SendString() function now expects a null terminated string instead of an explicit length. Existing code
+ *      should use the new \ref CDC_Device_SendData() function, or remove the length parameter from the function call.
  *
  *  <b>Host Mode</b>
  *    - The Pipe stream functions now all require a \c BytesProcessed parameter instead of the previous callback parameter.
@@ -42,6 +44,9 @@
  *      processed in the current transaction can be stored. If the BytesProcessed parameter is non \c NULL, each time the pipe
  *      bank becomes full and the packet is sent, the routine will exit with the new \ref PIPE_RWSTREAM_IncompleteTransfer
  *      error code to allow the user application to determine when to send the next chunk of data.
+ *    - The \ref PRNT_Host_SendString() and \ref CDC_Host_SendString() functions now expect a null terminated string instead of an explicit
+ *      length. Existing code should use the new \ref PRNT_Host_SendData() and \ref CDC_Host_SendData() functions, or remove the
+ *      length parameter from the function call.
  *
  *  \section Sec_Migration101122 Migrating from 100807 to 101122
  *  <b>USB Core</b>