code: def hw(self, hw):
          
          if hw.upper() == "INIT":
              self._raw(HW_INIT)
          elif hw.upper() == "SELECT":
              self._raw(HW_SELECT)
          elif hw.upper() == "RESET":
              self._raw(HW_RESET)
          else: # DEFAULT: DOES NOTHING
              pass
docs: Hardware operations