X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/77dda302acb0402a27565e12f98ffc56c1a86389..a2e6d54336144f7fa3cc1d77f887cc9e20631771:/LUFA/Drivers/USB/LowLevel/LowLevel.h

diff --git a/LUFA/Drivers/USB/LowLevel/LowLevel.h b/LUFA/Drivers/USB/LowLevel/LowLevel.h
index aa760cd35..04b2c460c 100644
--- a/LUFA/Drivers/USB/LowLevel/LowLevel.h
+++ b/LUFA/Drivers/USB/LowLevel/LowLevel.h
@@ -28,6 +28,16 @@
   this software.
 */
 
+/** \file
+ *  \brief USB low level USB controller definitions.
+ *
+ *  This file contains structures, function prototypes and macros related to the low level configutation of the
+ *  USB controller, to start, stop and reset the USB library core.
+ *
+ *  \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.
+ */
+ 
 /** \ingroup Group_USB
  *  @defgroup Group_USBManagement USB Interface Management
  *
@@ -70,6 +80,10 @@
 		#endif
 
 	/* Preprocessor Checks and Defines: */
+		#if !defined(__INCLUDE_FROM_USB_DRIVER)
+			#error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
+		#endif
+
 		#if !defined(F_CLOCK)
 			#error F_CLOCK is not defined. You must define F_CLOCK to the frequency of the unprescaled input clock in your project makefile.
 		#endif
@@ -77,7 +91,7 @@
 		#if (F_CLOCK == 8000000)
 			#if (defined(__AVR_AT90USB82__) || defined(__AVR_AT90USB162__) || \
 			     defined(__AVR_ATmega8U2__) || defined(__AVR_ATmega16U2__) || \
-				 defined(__AVR_ATmega32U2))
+				 defined(__AVR_ATmega32U2__))
 				#define USB_PLL_PSC                0
 			#elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
 				#define USB_PLL_PSC                0
@@ -89,7 +103,7 @@
 		#elif (F_CLOCK == 16000000)
 			#if (defined(__AVR_AT90USB82__) || defined(__AVR_AT90USB162__) || \
 			     defined(__AVR_ATmega8U2__) || defined(__AVR_ATmega16U2__) || \
-				 defined(__AVR_ATmega32U2))
+				 defined(__AVR_ATmega32U2__))
 				#define USB_PLL_PSC                (1 << PLLP0)
 			#elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
 				#define USB_PLL_PSC                (1 << PINDIV)