From 2b98802f78d9e2e0d0d58dba7814a47c3884fe1a Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Tue, 13 Apr 2010 15:08:56 -0400
Subject: Update writing-a-driver.xml to describe the ntp_offset() method.

---
 www/writing-a-driver.xml | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'www/writing-a-driver.xml')

diff --git a/www/writing-a-driver.xml b/www/writing-a-driver.xml
index 73b2ca49..00053795 100644
--- a/www/writing-a-driver.xml
+++ b/www/writing-a-driver.xml
@@ -17,10 +17,11 @@
 <revhistory>
    <revision>
       <revnumber>1.9</revnumber>
-      <date>12 Apr 2010</date>
+      <date>13 Apr 2010</date>
       <authorinitials>er</authorinitials>
       <revremark>
-	 Updated by esr; added event_triggermatch.
+	 Updated by esr; added event_triggermatch and the new
+	 ntp_offset member.
       </revremark>
    </revision>
    <revision>
@@ -719,6 +720,13 @@ possible, assemble your packet in
 <structfield>session->msgbuflen</structfield>; this will allow 
 gpsmon to display the control messages it sends for you.</para>
 
+<!-- added by ESR, 2009 -->
+<para><structfield>.ntp_offset</structfield> points to code to compute
+an offset to be added, additionally to that in
+<filename>ntp.conf</filename> (if any) whe shipping time notifications
+to NTP. If multiple sentences set TIME_IS, this will differ by
+sentence type; it should differ by baud rare, as well. </para>
+
 </sect1>
 
 <sect1><title>Details of the driver parser</title>
-- 
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