@property
  def usb_handle(self):
    return self._protocol.usb_handle
round to next 2**X integer
dataset/ETHPy150Open google/openhtf/openhtf/plugs/usb/fastboot_device.py/FastbootDevice.usb_handle--crossover with--dataset/ETHPy150Open openstack/fuel-web/nailgun/nailgun/utils/ceph.py/to_upper_power_two