enable
filter
rtc_alarm_irq_enable/
rtc_irq_set_freq/
rtc_irq_set_state/
rtc_read_alarm/
rtc_read_offset/
rtc_read_time/
rtc_set_alarm/
rtc_set_offset/
rtc_set_time/
rtc_timer_dequeue/
rtc_timer_enqueue/
rtc_timer_fired/