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

diff --git a/LUFA/Drivers/USB/Class/Device/Audio.h b/LUFA/Drivers/USB/Class/Device/Audio.h
index c6b68b0cb..87fab9889 100644
--- a/LUFA/Drivers/USB/Class/Device/Audio.h
+++ b/LUFA/Drivers/USB/Class/Device/Audio.h
@@ -55,6 +55,11 @@
 			extern "C" {
 		#endif
 
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_AUDIO_DRIVER)
+			#error Do not include this file directly. Include LUFA/Drivers/Class/Audio.h instead.
+		#endif
+
 	/* Public Interface - May be used in end-application: */
 		/* Type Defines: */		
 			/** Class state structure. An instance of this structure should be made for each Audio interface