X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/7f9f97c792dee6875fbca9806422bdd7d6c5a657..19ecd04f37f68c0674f1194aa8d8a4fc94d6168b:/LUFA/Drivers/USB/HighLevel/USBTask.h

diff --git a/LUFA/Drivers/USB/HighLevel/USBTask.h b/LUFA/Drivers/USB/HighLevel/USBTask.h
index 68d04af66..0b5474241 100644
--- a/LUFA/Drivers/USB/HighLevel/USBTask.h
+++ b/LUFA/Drivers/USB/HighLevel/USBTask.h
@@ -27,7 +27,17 @@
   arising out of or in connection with the use or performance of
   this software.
 */
- 
+
+/** \file
+ *  \brief Main USB service task management.
+ *
+ *  This file contains the function definitions required for the main USB service task, which must be called
+ *  from the user application to ensure that the USB connection to or from a connected USB device is maintained.
+ *
+ *  \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 __USBTASK_H__
 #define __USBTASK_H__
 
@@ -54,6 +64,11 @@
 		#if defined(__cplusplus)
 			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: */
 		/* Global Variables: */
@@ -164,7 +179,7 @@
 	/* Private Interface - For use in library only: */
 	#if !defined(__DOXYGEN__)
 		/* Function Prototypes: */
-			#if defined(INCLUDE_FROM_USBTASK_C)
+			#if defined(__INCLUDE_FROM_USBTASK_C)
 				#if defined(USB_CAN_BE_HOST)
 					static void USB_HostTask(void);
 				#endif