Merge branch 'master' of ssh://gitlab.iri.upc.edu:2202/labrobotica/drivers/usb_i2c_adapter

src/usb_i2c.cpp

@@ -61,6 +61,11 @@ void CUSBI2C::open(const std::string &serial)
       throw CUSBI2CException(_HERE_,"No FTDI device available with the desired serial number.");
     }
   }
+  else
+  {
+    /* handle exceptions */
+    throw CUSBI2CException(_HERE_,"No FTDI devices available.");
+  }
 }
 
 unsigned char CUSBI2C::get_revision(void)