Added new stream creation function to the CDC Class drivers, to easily make standard streams from CDC Class driver instances.

1 files changed, 15 insertions, 0 deletions

diff --git a/LUFA/Drivers/USB/Class/Device/CDC.h b/LUFA/Drivers/USB/Class/Device/CDC.h
index 1691857cd..857d07335 100644
--- a/LUFA/Drivers/USB/Class/Device/CDC.h
+++ b/LUFA/Drivers/USB/Class/Device/CDC.h
@@ -48,6 +48,7 @@
 		#include "../../USB.h"

 		#include "../Common/CDC.h"

 

+		#include <stdio.h>

 		#include <string.h>

 

 	/* Enable C linkage for C++ Compilers: */

@@ -209,10 +210,24 @@
 			 */

 			void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);

 

+			/** Creates a standard characer stream for the given CDC Device instance so that it can be used with all the regular

+			 *  functions in the avr-libc <stdio.h> library that accept a FILE stream as a destination (e.g. fprintf).

+			 *

+			 *  \note The created stream can be given as stdout if desired to direct the standard output from all <stdio.h> functions

+			 *        to the given CDC interface.

+			 *

+			 *  \param[in,out] CDCInterfaceInfo  Pointer to a structure containing a CDC Class configuration and state

+			 *  \param[in,out] Stream  Pointer to a FILE structure where the created stream should be placed

+			 */

+			void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream);

+

 	/* Private Interface - For use in library only: */

 	#if !defined(__DOXYGEN__)

 		/* Function Prototypes: */

 			#if defined(INCLUDE_FROM_CDC_CLASS_DEVICE_C)

+				static int CDC_Device_putchar(char c, FILE* Stream);

+				static int CDC_Device_getchar(FILE* Stream);

+				

 				void CDC_Device_Event_Stub(void);

 				void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)

 														  ATTR_WEAK ATTR_NON_NULL_PTR_ARG(1) ATTR_ALIAS(CDC_Device_Event_Stub);