code: def set_feature(dev, feature, recipient = None):
      r
      bmRequestType, wIndex = _parse_recipient(recipient, util.CTRL_OUT)
      dev.ctrl_transfer(bmRequestType = bmRequestType,
                        bRequest = 0x03,
                        wIndex = wIndex,
                        wValue = feature)
docs: r"""Set/enable a specific feature.
  
      dev is the Device object to which the request will be
      sent to.
  
      feature is the feature you want to enable.
  
      The recipient can be None (on which the status will be queried
      from the device), an Interface or Endpoint descriptors.