Merge pull request #206 from hathach/develop

Added a couple of unit testing with Ceedling/Cmock/Unity

src/device/usbd.h

@@ -41,6 +41,9 @@
 // Application API
 //--------------------------------------------------------------------+
 
+// Init device stack
+bool tud_init (void);
+
 // Task function should be called in main/rtos loop
 void tud_task (void);