Increased throughput of the USBtoSerial demo on systems that send multiple bytes...

[pub/USBasp.git] / LUFA / Drivers / USB / Class / Common / Printer.h

diff --git a/LUFA/Drivers/USB/Class/Common/Printer.h b/LUFA/Drivers/USB/Class/Common/Printer.h
index 5907e0e..06ec0bb 100644 (file)
--- a/LUFA/Drivers/USB/Class/Common/Printer.h
+++ b/LUFA/Drivers/USB/Class/Common/Printer.h
@@ -1,13 +1,13 @@
 /*\r
              LUFA Library\r
-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
 \r
   Permission to use, copy, modify, distribute, and sell this \r
   software and its documentation for any purpose is hereby granted\r
@@ -49,8 +49,13 @@
        /* Enable C linkage for C++ Compilers: */\r
                #if defined(__cplusplus)\r
                        extern "C" {\r
-               #endif\r
+               #endif
 \r
+       /* Preprocessor Checks: */\r
+               #if !defined(__INCLUDE_FROM_PRINTER_DRIVER)\r
+                       #error Do not include this file directly. Include LUFA/Drivers/Class/Printer.h instead.\r
+               #endif\r
+               \r
        /* Macros: */\r
                /** Port status mask for a printer device, indicating that an error has *not* occurred. */\r
                #define PRNT_PORTSTATUS_NOTERROR    (1 << 3)\r