X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/f595043584d864d2618da62f422cf57ed5eda6f4..5b06886dab18711c33c884e8da81b66d0f3f1541:/LUFA/Drivers/USB/Core/Device.h

diff --git a/LUFA/Drivers/USB/Core/Device.h b/LUFA/Drivers/USB/Core/Device.h
index be3dfd118..85fdfacf1 100644
--- a/LUFA/Drivers/USB/Core/Device.h
+++ b/LUFA/Drivers/USB/Core/Device.h
@@ -56,6 +56,11 @@
 		#include "USBInterrupt.h"
 		#include "Endpoint.h"
 
+	/* Enable C linkage for C++ Compilers: */
+		#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.
@@ -63,6 +68,13 @@
 
 	/* Public Interface - May be used in end-application: */
 		/* Enums: */
+			/** Enum for the various states of the USB Device state machine. Only some states are
+			 *  implemented in the LUFA library - other states are left to the user to implement.
+			 *
+			 *  For information on each possible USB device state, refer to the USB 2.0 specification.
+			 *
+			 *  \see \ref USB_DeviceState, which stores the current device state machine state.
+			 */
 			enum USB_Device_States_t
 			{
 				DEVICE_STATE_Unattached                   = 0, /**< Internally implemented by the library. This state indicates
@@ -134,6 +146,11 @@
 			#include "UC3/Device_UC3.h"
 		#endif
 
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
 #endif
 
 /** @} */