ACPI_BITREG_RT_CLOCK_STATUS
/* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS, ACPI_BITREG_RT_CLOCK_ENABLE, ACPI_BITMASK_RT_CLOCK_STATUS, ACPI_BITMASK_RT_CLOCK_ENABLE},
(void) AcpiWriteBitRegister(ACPI_BITREG_RT_CLOCK_STATUS, 1);