contrib/ntp/html/drivers/driver33.html

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   7                 <title>Dumb Clock</title>
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  12                 <h3>Dumb Clock</h3>
  13 <p>Last update:
  14   <!-- #BeginDate format:En2m -->21-Oct-2010  23:44<!-- #EndDate -->
  15   UTC</p>
  16                 <hr>
  17                 <h4>Synopsis</h4>
  18                 <p>Address: 127.127.33.<i>u</i><br>
  19                         Reference ID: <tt>DUMBCLOCK</tt><br>
  20                         Driver ID: <tt>DUMBCLOCK</tt><br>
  21                         Serial Port: <tt>/dev/dumbclock<i>u</i></tt>; 9600 bps, 8-bits, no parity<br>
  22                         Features: <tt>(none)</tt></p>
  23                 <h4>Description</h4>
  24                 <p>This driver supports a dumb ASCII clock that only emits localtime at a reliable interval. This has no provisions for leap seconds, quality codes, etc. It assumes output in the local time zone, and that the C library mktime()/localtime() routines will correctly convert back and forth between local and UTC.</p>
  25                 <p>Most of this code is originally from refclock_wwvb.c with thanks. It has been so mangled that wwvb is not a recognizable ancestor.</p>
  26                 <pre>
  27 Timecode format: hh:mm:ssCL
  28 hh:mm:ss - local time
  29 C - \r (carriage return)
  30 L - \n (newline)
  31 </pre>
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