I saw /proc/driver has rtc.
And the contents of the rtc is
localhost# cat rtc
rtc_time : 21:29:50
rtc_date : 1970-01-05
24hr : yes
But I still could not figure out how to access/change the contents.
Do I need a separate program to access this rtc?
I assume this rtc is depend on /driver/rtc/rtc-snvs.c.
Please let me know if I misunderstand something.