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Annotation of lucent/sys/man/3/rtc, revision 1.1.1.1

1.1       root        1: .TH RTC 3
                      2: .SH NAME
                      3: rtc \- real-time clock and non-volatile RAM
                      4: .SH SYNOPSIS
                      5: .B bind #r /dev
                      6: .PP
                      7: .B /dev/rtc
                      8: .br
                      9: .B /dev/nvram
                     10: .SH DESCRIPTION
                     11: The
                     12: .I rtc
                     13: device supports the
                     14: Mostek MK48T12-15 Zeropower/Timekeeper and similar devices
                     15: with real-time clocks and non-volatile RAM.
                     16: .PP
                     17: The
                     18: .B rtc
                     19: file behaves just like
                     20: .BR /dev/time
                     21: (see
                     22: .IR cons (3)).
                     23: The real-time clock is maintained on-board;
                     24: .B /dev/time
                     25: is set from the file server.  Neither is necessarily more accurate.
                     26: .PP
                     27: The
                     28: .B nvram
                     29: file provides (if permission allows)
                     30: access to the local non-volatile RAM.
                     31: For example,
                     32: .IR boot (8)
                     33: reads the machine's key
                     34: from there
                     35: (see
                     36: .IR auth (8)).
                     37: .SH SEE ALSO
                     38: .IR auth (8),
                     39: .IR boot (8)
                     40: .SH SOURCE
                     41: .B /sys/src/9/*/devrtc.c

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