Google Maps 39 References Article Sources and Contributors 55 Image Sources, Licenses and Contributors 58 Article Licenses License 59 Gpsd 1 Gpsd
Contents Articles Gpsd 1 MoNav 3 Navit 4 OpenStreetMap 6 VZ Navigator 14 Google Earth 17 Google Maps 39 References Article Sources and Contributors 55 Image Sources, Licenses and Contributors 58 Article Licenses License 59 Gpsd 1 Gpsd gpsd Original author(s) Remco Treffkorn, Derrick Brashear Developer(s) Eric S. Raymond Stable release 3.10 / 2013-11-22 Development status Mature Written in C, Python Operating system Linux, *BSD, Mac OS X, Android Platform Any Size ~51K LOC Available in English Type GPS License BSD Website http:/ / www. catb. org/ gpsd/ gpsd is a daemon that receives data from a GPS receiver, and provides the data back to multiple applications such as Kismet or GPS navigation software. It thus provides a unified interface to receivers of different types, and allows concurrent access by multiple applications. It is commonly used on Linux and FreeBSD systems.[1][2][3] Distributed under a permissive free software license, gpsd is free software. Design gpsd provides a TCP/IP service by binding to port 2947.[4] It accepts commands from that socket, and returns results back to it. These commands use a JSON-based syntax and return JSON responses (older, now obsolete versions used single-letter commands). Concurrent operation is supported. Most GPS receivers are supported, whether serial, USB, or Bluetooth. Starting in 2009, GPSD supports AIS receivers as well.[5] 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. Authors gpsd was originally written by Remco Treffkorn with Derrick Brashear, then maintained by Russell Nelson.[6] It is now maintained by Eric S.
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