int (*proc)(char *buf);
};
+void rtc_time_to_tm(unsigned long, struct rtc_time *);
+int rtc_tm_to_time(struct rtc_time *, unsigned long *);
+int rtc_valid_tm(struct rtc_time *);
void rtc_next_alarm_time(struct rtc_time *, struct rtc_time *, struct rtc_time *);
void rtc_update(unsigned long, unsigned long);
int register_rtc(struct rtc_ops *);