RTC(3)RTC(3)
NAME
rtc – real-time clock and non-volatile RAM
SYNOPSIS
bind #r /dev
/dev/rtc
/dev/nvram
DESCRIPTION
The
rtc
device supports devices
with real-time clocks and non-volatile RAM.
The
rtc
file behaves just like
/dev/time
(see
cons(3)).
The real-time clock is maintained on-board;
/dev/time
is set from the file server. Neither is necessarily more accurate.
The
nvram
file provides (if permission allows)
access to the local non-volatile RAM.
For example,
boot(8)
reads the machine’s key
from there
(see
auth(8)).
SEE
auth(8),
boot(8)
SOURCE
/sys/src/9/*/devrtc.c