Speed up bit-banged USART code in the AVRISP project.

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

diff --git a/LUFA/Drivers/USB/Class/Host/CDC.h b/LUFA/Drivers/USB/Class/Host/CDC.h
index 0ead68c..1873f55 100644 (file)
--- a/LUFA/Drivers/USB/Class/Host/CDC.h
+++ b/LUFA/Drivers/USB/Class/Host/CDC.h
@@ -88,6 +88,11 @@
                                        uint16_t DataINPipeSize; /**< Size in bytes of the CDC interface's IN data pipe */\r
                                        uint16_t DataOUTPipeSize;  /**< Size in bytes of the CDC interface's OUT data pipe */\r
                                        uint16_t NotificationPipeSize;  /**< Size in bytes of the CDC interface's IN notification pipe, if used */\r
+                                       \r
+                                       bool BidirectionalDataEndpoints; /**< Indicates if the attached CDC interface uses bidirectional data endpoints,\r
+                                                                         *   and this has only the IN pipe configured (with \ref Pipe_SetPipeToken()\r
+                                                                         *   used to switch the pipe's direction)\r
+                                                                         */\r
 \r
                                        struct\r
                                        {\r
@@ -209,8 +214,17 @@
                         */\r
                        uint8_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
                        \r
+                       /** Flushes any data waiting to be sent, ensuring that the send buffer is cleared.\r
+                        *\r
+                        *  \param[in,out] CDCInterfaceInfo  Pointer to a structure containing a CDC Class host configuration and state\r
+                        *\r
+                        *  \return A value from the \ref Pipe_WaitUntilReady_ErrorCodes_t enum\r
+                        */\r
+                       uint8_t CDC_Host_Flush(USB_ClassInfo_CDC_Host_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
+                        *  functions in the avr-libc <stdio.h> library that accept a FILE stream as a destination (e.g. fprintf). The created\r
+                        *  stream is bidirectional and can be used for both input and output functions.\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