ACPI_VRTC_ENTRY
ACPI_VRTC_ENTRY *Subtable;
Subtable = ACPI_ADD_PTR (ACPI_VRTC_ENTRY, Table, Offset);
sizeof (ACPI_VRTC_ENTRY), AcpiDmTableInfoVrtc0);
Offset += sizeof (ACPI_VRTC_ENTRY);
Subtable = ACPI_ADD_PTR (ACPI_VRTC_ENTRY, Subtable,
sizeof (ACPI_VRTC_ENTRY));
#define ACPI_VRTC0_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_VRTC_ENTRY,f)