Massive cleanups to the incomplete BluetoothHost demo, to make the HCL layer code...

[pub/USBasp.git] / LUFA / Drivers / USB / LowLevel / LowLevel.h

diff --git a/LUFA/Drivers/USB/LowLevel/LowLevel.h b/LUFA/Drivers/USB/LowLevel/LowLevel.h
index dc01d24..04b2c46 100644 (file)
--- a/LUFA/Drivers/USB/LowLevel/LowLevel.h
+++ b/LUFA/Drivers/USB/LowLevel/LowLevel.h
@@ -28,6 +28,16 @@
   this software.\r
 */\r
 \r
+/** \file\r
+ *  \brief USB low level USB controller definitions.\r
+ *\r
+ *  This file contains structures, function prototypes and macros related to the low level configutation of the\r
+ *  USB controller, to start, stop and reset the USB library core.\r
+ *\r
+ *  \note This file should not be included directly. It is automatically included as needed by the USB driver\r
+ *        dispatch header located in LUFA/Drivers/USB/USB.h.\r
+ */\r
+ \r
 /** \ingroup Group_USB\r
  *  @defgroup Group_USBManagement USB Interface Management\r
  *\r
@@ -70,6 +80,10 @@
                #endif\r
 \r
        /* Preprocessor Checks and Defines: */\r
+               #if !defined(__INCLUDE_FROM_USB_DRIVER)\r
+                       #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.\r
+               #endif\r
+\r
                #if !defined(F_CLOCK)\r
                        #error F_CLOCK is not defined. You must define F_CLOCK to the frequency of the unprescaled input clock in your project makefile.\r
                #endif\r