X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/3a2c1db6751979ae3e5d7a6fa51026f9c44c71c0..d49cc0f7830319e701294e19937fae4de26ae8e2:/LUFA/Drivers/USB/Class/Common/CDC.h?ds=sidebyside

diff --git a/LUFA/Drivers/USB/Class/Common/CDC.h b/LUFA/Drivers/USB/Class/Common/CDC.h
index f6844979d..55f530ba9 100644
--- a/LUFA/Drivers/USB/Class/Common/CDC.h
+++ b/LUFA/Drivers/USB/Class/Common/CDC.h
@@ -51,6 +51,11 @@
 			extern "C" {
 		#endif
 
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_CDC_DRIVER)
+			#error Do not include this file directly. Include LUFA/Drivers/Class/CDC.h instead.
+		#endif
+		
 	/* Macros: */
 		/** CDC Class specific request to get the current virtual serial port configuration settings. */
 		#define REQ_GetLineEncoding              0x21