def _get_format_data(self, fmt):
"""Get the format data.
:param fmt: an instance of DeviceFormat
:return: an instance of DeviceFormatData
"""
# Collect the format data.
data = DeviceFormatData()
data.type = fmt.type or ""
data.mountable = fmt.mountable
data.description = fmt.name or ""
# Collect the additional attributes.
attrs = self._get_attributes(fmt, DeviceFormatData.SUPPORTED_ATTRIBUTES)
data.attrs = attrs
return data