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

1 files changed, 17 insertions, 0 deletions

diff --git a/LUFA/Drivers/USB/Class/Host/CDC.h b/LUFA/Drivers/USB/Class/Host/CDC.h
index 6b3a320f0..0ee24be48 100644
--- a/LUFA/Drivers/USB/Class/Host/CDC.h
+++ b/LUFA/Drivers/USB/Class/Host/CDC.h
@@ -47,6 +47,9 @@
 	/* Includes: */

 		#include "../../USB.h"

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

+

+		#include <stdio.h>

+		#include <string.h>

 		

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

 		#if defined(__cplusplus)

@@ -205,6 +208,17 @@
 			 */

 			uint8_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_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_Host_CreateStream(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, FILE* Stream);

+

 			/** CDC class driver event for a control line state change on a CDC host interface. This event fires each time the device notifies

 			 *  the host of a control line state change (containing the virtual serial control line states, such as DCD) and may be hooked in the

 			 *  user program by declaring a handler function with the same name and parameters listed here. The new control line states

@@ -231,6 +245,9 @@
 

 		/* Function Prototypes: */

 			#if defined(INCLUDE_FROM_CDC_CLASS_HOST_C)

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

+				static int CDC_Host_getchar(FILE* Stream);

+

 				void CDC_Host_Event_Stub(void);

 				void EVENT_CDC_Host_ControLineStateChanged(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)

 				                                           ATTR_WEAK ATTR_NON_NULL_PTR_ARG(1) ATTR_ALIAS(CDC_Host_Event_Stub);