X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/7f9f97c792dee6875fbca9806422bdd7d6c5a657..7d51e51c79c3af7791f4c3e8c7e5e8196a2c3f93:/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 ea6f1abb0..06ec0bb0b 100644
--- a/LUFA/Drivers/USB/Class/Common/Printer.h
+++ b/LUFA/Drivers/USB/Class/Common/Printer.h
@@ -49,8 +49,13 @@
 	/* Enable C linkage for C++ Compilers: */
 		#if defined(__cplusplus)
 			extern "C" {
-		#endif
+		#endif
 
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_PRINTER_DRIVER)
+			#error Do not include this file directly. Include LUFA/Drivers/Class/Printer.h instead.
+		#endif
+		
 	/* Macros: */
 		/** Port status mask for a printer device, indicating that an error has *not* occurred. */
 		#define PRNT_PORTSTATUS_NOTERROR    (1 << 3)