Gpsd

Gpsd

Infobox Software
name = gpsd



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genre = GPS
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website = http://gpsd.berlios.de/

gpsd is a daemon that receives data from a GPS receiver, and provides the data back to multiple applications such as Kismet. It is commonly used on Linux systems. Originally written by Remco Treffkorn with Derrick Brashear, then maintained by Russell Nelson [ [http://pygps.org/gpsd/CHANGELOG GPSD CHANGELOG] ] , and now maintained by Eric S. Raymond [ [http://gpsd.berlios.de/history.html GPSD History] ] .

Distributed under a permissive free software licence, [cite web
url=http://svn.berlios.de/svnroot/repos/gpsd/trunk/COPYING
title=COPYING file from the source code] gpsd is free software.

gpsd provides a TCP/IP service by binding to port 2947. It accepts commands from that socket, and returns results back to it. These commands are in the form of single letters. They may request a continuous stream of data, or may be queries to return portions of the current state of the GPS receiver. Concurrent operation is supported. Most GPS receivers are supported, whether serial, USB, or Bluetooth. Additionally gpsd supports interfacing with the UNIX network time protocol daemon ntpd via shared memory to enable setting the host platform's time via the GPS clock.

External links

* [http://gpsd.berlios.de/ gpsd project page]
* [http://pygps.org/gpsd/downloads historical versions]

References


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