1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML Strict//EN">
<html><head><title>
USNO Modem Time Service
</title></head><body><h3>
USNO Modem Time Service
</h3><hr>
<p><h4>Synopsis</h4>
<p>Address: 127.127.24.<var>u</var>
<br>Reference ID: USNO
<br>Driver ID: USNO
<br>Serial Port: <code>/dev/cua<var>u</var></code>; 1200 baud, 8-bits,
no parity
<br>Features: none
<br>Requires: <code>/usr/include/sys/termios.h</code> header file with
modem control
<p><h4>Description</h4>
<p>No information available.
<p><h4>Monitor Data</h4>
<p>When enabled by the <code>flag4</code> fudge flag, every received
timecode is written as-is to the <code>clockstats</code> file.
<p><h4>Fudge Factors</h4>
<dl>
<dt><code>time1 <i>time</i></code>
<dd>Specifies the time offset calibration factor, in seconds and
fraction, with default 0.0.
<p><dt><code>time2 <i>time</i></code>
<dd>Not used by this driver.
<p><dt><code>stratum <i>number</i></code>
<dd>Specifies the driver stratum, in decimal from 0 to 15, with default
0.
<p><dt><code>refid <i>string</i></code>
<dd>Specifies the driver reference identifier, an ASCII string from one
to four characters, with default <code>USNO</code>.
<p><dt><code>flag1 0 | 1</code>
<dd>Not used by this driver.
<p><dt><code>flag2 0 | 1</code>
<dd>Not used by this driver.
<p><dt><code>flag3 0 | 1</code>
<dd>Enable <code>ppsclock</code> line discipline/streams module if set.
<p><dt><code>flag4 0 | 1</code>
<dd>Enable <code>clockstats</code> recording if set.
</dl>
<hr><address>David L. Mills (mills@udel.edu)</address></body></html>
|
