RTC_REG_SECONDS_0
via_rtc_command(RTC_CMD_READ(RTC_REG_SECONDS_0), &last_result.cdata[3]);
via_rtc_command(RTC_CMD_READ(RTC_REG_SECONDS_0),
via_rtc_command(RTC_CMD_WRITE(RTC_REG_SECONDS_0), &data.cdata[3]);