ACPI_FPDTH_OFFSET
{ACPI_DMT_UINT16, ACPI_FPDTH_OFFSET (Type), "Subtable Type", 0},
{ACPI_DMT_UINT8, ACPI_FPDTH_OFFSET (Length), "Length", DT_LENGTH},
{ACPI_DMT_UINT8, ACPI_FPDTH_OFFSET (Revision), "Revision", 0},