X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/7f9f97c792dee6875fbca9806422bdd7d6c5a657..fc31973daffea3506051ce51a5f79383ce0867d6:/LUFA/Drivers/USB/LowLevel/HostChapter9.h

diff --git a/LUFA/Drivers/USB/LowLevel/HostChapter9.h b/LUFA/Drivers/USB/LowLevel/HostChapter9.h
index fc8dfe2a5..e38c67e6c 100644
--- a/LUFA/Drivers/USB/LowLevel/HostChapter9.h
+++ b/LUFA/Drivers/USB/LowLevel/HostChapter9.h
@@ -28,6 +28,16 @@
   this software.
 */
 
+/** \file
+ *  \brief USB host standard request management.
+ *
+ *  This file contains the function prototypes neccesary for the issuing of outgoing standard control requests
+ *  when the library is in USB host mode.
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the USB driver
+ *        dispatch header located in LUFA/Drivers/USB/USB.h.
+ */
+
 #ifndef __HOSTCHAPTER9_H__
 #define __HOSTCHAPTER9_H__
 
@@ -44,6 +54,11 @@
 			extern "C" {
 		#endif
 
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_USB_DRIVER)
+			#error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
+		#endif
+		
 	/* Public Interface - May be used in end-application: */
 		/* Enums: */
 			/** Enum for the \ref USB_Host_SendControlRequest() return code, indicating the reason for the error
@@ -89,7 +104,7 @@
 			};
 	
 		/* Function Prototypes: */
-			#if defined(INCLUDE_FROM_HOSTCHAPTER9_C)
+			#if defined(__INCLUDE_FROM_HOSTCHAPTER9_C)
 				static uint8_t USB_Host_WaitForIOS(const uint8_t WaitType);
 			#endif
 	#endif