Added new stream creation function to the CDC Class drivers, to easily make standard...

[pub/USBasp.git] / LUFA / Drivers / USB / Class / Device / CDC.h

diff --git a/LUFA/Drivers/USB/Class/Device/CDC.h b/LUFA/Drivers/USB/Class/Device/CDC.h
index 1691857..857d073 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/CDC.h
+++ b/LUFA/Drivers/USB/Class/Device/CDC.h
@@ -48,6 +48,7 @@
                #include "../../USB.h"\r
                #include "../Common/CDC.h"\r
 \r
+               #include <stdio.h>\r
                #include <string.h>\r
 \r
        /* Enable C linkage for C++ Compilers: */\r
@@ -209,10 +210,24 @@
                         */\r
                        void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
 \r
+                       /** Creates a standard characer stream for the given CDC Device instance so that it can be used with all the regular\r
+                        *  functions in the avr-libc <stdio.h> library that accept a FILE stream as a destination (e.g. fprintf).\r
+                        *\r
+                        *  \note The created stream can be given as stdout if desired to direct the standard output from all <stdio.h> functions\r
+                        *        to the given CDC interface.\r
+                        *\r
+                        *  \param[in,out] CDCInterfaceInfo  Pointer to a structure containing a CDC Class configuration and state\r
+                        *  \param[in,out] Stream  Pointer to a FILE structure where the created stream should be placed\r
+                        */\r
+                       void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream);\r
+\r
        /* Private Interface - For use in library only: */\r
        #if !defined(__DOXYGEN__)\r
                /* Function Prototypes: */\r
                        #if defined(INCLUDE_FROM_CDC_CLASS_DEVICE_C)\r
+                               static int CDC_Device_putchar(char c, FILE* Stream);\r
+                               static int CDC_Device_getchar(FILE* Stream);\r
+                               \r
                                void CDC_Device_Event_Stub(void);\r
                                void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)\r
                                                                                                                  ATTR_WEAK ATTR_NON_NULL_PTR_ARG(1) ATTR_ALIAS(CDC_Device_Event_Stub);\r