Add more include protection macros to give the user warnings when they try to manuall...

[pub/USBasp.git] / LUFA / Drivers / USB / Class / Common / CDC.h

diff --git a/LUFA/Drivers/USB/Class/Common/CDC.h b/LUFA/Drivers/USB/Class/Common/CDC.h
index f684497..55f530b 100644 (file)
--- a/LUFA/Drivers/USB/Class/Common/CDC.h
+++ b/LUFA/Drivers/USB/Class/Common/CDC.h
@@ -51,6 +51,11 @@
                        extern "C" {\r
                #endif\r
 \r
+       /* Preprocessor Checks: */\r
+               #if !defined(__INCLUDE_FROM_CDC_DRIVER)\r
+                       #error Do not include this file directly. Include LUFA/Drivers/Class/CDC.h instead.\r
+               #endif\r
+               \r
        /* Macros: */\r
                /** CDC Class specific request to get the current virtual serial port configuration settings. */\r
                #define REQ_GetLineEncoding              0x21\r