usb mass storage class

src/main.c

@@ -439,6 +439,13 @@ main (int argc, char **argv)
 		  "Hello world\r\n\r\n", 35+21+15);
 	}
 #endif
+      if (msc_recv_cbw () == 0)
+	{
+	  int r = msc_handle_cbw ();
+
+	  if (r != 1)
+	    msc_handle_err (r);
+	}
     }
 
   return 0;