From: W. Trevor King <wking@drexel.edu>
Date: Tue, 8 Jul 2008 21:03:08 +0000 (+0000)
Subject: Importing NanoBlogger post "Stripchart"
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=386bf3f23ac3408939132a8548b6abafd2e87c40;p=blog.git

Importing NanoBlogger post "Stripchart"
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diff --git a/posts/Stripchart.mdwn b/posts/Stripchart.mdwn
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index 0000000..95540bb
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+[[!meta  title="Stripchart"]]
+[[!meta  date="2008-07-08 17:03:08"]]
+I was trying to troubleshoot the feedback loop on our Nanoscope today, and
+when I went to fire up my [Comedi](http://www.comedi.org/)-driven stripcharts
+monitoring some lines in the DB-25 cable connecting the Multimode to the
+Nanoscope, I got a bunch of wierd errors (errnos 11 and 29).  I tracked them
+down to some of the Xlib function calls in my stripchart code (yes, I wrote my
+own
+[stripchart](http://www.physics.drexel.edu/~wking/rsrch/code/index.shtml#stripchart)
+code, so sue me), which I don't understand, since I can't find any reference to
+Xlib functions setting errnos.
+
+Anyhow, I've patched up my source to gleefully ignore any Xlib errno settings,
+and things seem to be back up and running now.  Feel free to give my stripchart
+code a whirl, since I quite enjoy it :p.
+
+[[!tag  programming]]