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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>
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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)
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