ACPI_SBST_OFFSET
{ACPI_DMT_UINT32, ACPI_SBST_OFFSET (WarningLevel), "Warning Level", 0},
{ACPI_DMT_UINT32, ACPI_SBST_OFFSET (LowLevel), "Low Level", 0},
{ACPI_DMT_UINT32, ACPI_SBST_OFFSET (CriticalLevel), "Critical Level", 0},