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Lisandro Damián Nicanor Pérez Meyer 5de17f0c99 Allow gpsd.service to be enabled by the admin at boot time. 2 weeks ago
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geoid.c New upstream version 3.18.1 6 months ago
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gps_maskdump.c New upstream version 3.18.1 6 months ago
gpscap.ini New upstream version 3.18.1 6 months ago
gpscap.py New upstream version 3.18.1 6 months ago
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gpsd.8 New upstream version 3.17 1 year ago
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isgps.c New upstream version 3.18.1 6 months ago
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monitor_garmin.c New upstream version 3.18.1 6 months ago
monitor_italk.c New upstream version 3.18.1 6 months ago
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ntpshmread.c New upstream version 3.18.1 6 months ago
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packet.c New upstream version 3.18.1 6 months ago
packet_names.h New upstream version 3.18.1 6 months ago
packet_states.h New upstream version 3.18.1 6 months ago
ppscheck.8 New upstream version 3.17 1 year ago
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ppscheck.xml New upstream version 3.18.1 6 months ago
ppsthread.c New upstream version 3.18.1 6 months ago
ppsthread.h New upstream version 3.18.1 6 months ago
pseudoais.c New upstream version 3.18.1 6 months ago
pseudonmea.c New upstream version 3.18.1 6 months ago
pylintrc New upstream version 3.18.1 6 months ago
python_compatibility.h New upstream version 3.18.1 6 months ago
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rtcm2_json.c New upstream version 3.18.1 6 months ago
rtcm3_json.c New upstream version 3.18.1 6 months ago
sd_socket.c New upstream version 3.18.1 6 months ago
sd_socket.h New upstream version 3.18.1 6 months ago
serial.c New upstream version 3.18.1 6 months ago
shared_json.c New upstream version 3.18.1 6 months ago
shmexport.c New upstream version 3.18.1 6 months ago
sockaddr.h Imported Upstream version 3.9 6 years ago
srec.5 New upstream version 3.17 1 year ago
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strfuncs.h Imported Upstream version 3.15 3 years ago
subframe.c New upstream version 3.18.1 6 months ago
test_bits.c New upstream version 3.18.1 6 months ago
test_float.c New upstream version 3.18.1 6 months ago
test_geoid.c New upstream version 3.18.1 6 months ago
test_gpsmm.cpp New upstream version 3.17 1 year ago
test_json.c New upstream version 3.18.1 6 months ago
test_libgps.c New upstream version 3.18.1 6 months ago
test_maidenhead.py New upstream version 3.17 1 year ago
test_matrix.c New upstream version 3.17 1 year ago
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test_mktime.c New upstream version 3.18.1 6 months ago
test_nmea2000 Imported Upstream version 3.15 3 years ago
test_packet.c New upstream version 3.18.1 6 months ago
test_timespec.c New upstream version 3.18.1 6 months ago
test_trig.c Imported Upstream version 2.93 9 years ago
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timebase.c New upstream version 3.18.1 6 months ago
timebase.h New upstream version 3.18.1 6 months ago
timehint.c New upstream version 3.17 1 year ago
timespec.h New upstream version 3.18.1 6 months ago
timespec_str.c New upstream version 3.18.1 6 months ago
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ubxtool.xml New upstream version 3.18.1 6 months ago
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valgrind-suppressions Imported Upstream version 3.15 3 years ago
xgps New upstream version 3.18.1 6 months ago
xgps.1 New upstream version 3.18.1 6 months ago
xgpsspeed New upstream version 3.18.1 6 months ago
xgpsspeed.1 New upstream version 3.18.1 6 months ago
zerk New upstream version 3.18.1 6 months ago
zerk.1 New upstream version 3.18.1 6 months ago
zerk.xml New upstream version 3.18.1 6 months ago

README

GENERAL
=======

gpsd is a userland daemon acting as a translator between GPS and
AIS receivers and their clients. gpsd listens on port 2947 for clients
requesting position/time/velocity information. The receivers are
expected to generate position information in a well-known format -- as
NMEA-0183 sentences, SiRF binary, Rockwell binary, Garmin binary
format, or other vendor binary protocols. gpsd takes this
information from the GPS and translates it into something uniform and
easier to understand for clients. The distribution includes sample
clients, application interface libraries, and test/profiling tools.

There is a website for GPSD where you can find updates, news, and
project mailing lists; look for that URL in the scons recipe, the file
SConstruct in this top-level directory. See that website for a list
of GPS units known to be compatible.

See the file INSTALL for installation instructions and some tips on
how to troubleshoot your installation. The file build.txt has
instructions for building from source. The packaging/ directory
contains resources and suggestions for packagers and distribution
integrators.

LICENSE
=======

This software (gpsd) is released under the terms and conditions of the BSD
License, a copy of which is included in the file COPYING.

1.X CREDITS
===========

Remco Treffkorn designed and originated the code.

Russ Nelson maintained gpsd for a couple of years.

Carsten Tschach's gpstrans-0.31b code was the original model for nmea_parse.c.

Bob Lorenzini <hwm@netcom.com> provided testing and feedback.

Brook Milligan <brook@trillium.NMSU.Edu> combined gpsd and gpsclient
into one package and autoconfiscated it.

Derrick J. Brashear <shadow@dementia.org> (KB3EGH) added code for the
EarthMate DeLorme. He also added "incredibly gross code to output
NMEA sentences" (his own words :-) He also did the first cut at
DGPS support (see http://www.wsrcc.com/wolfgang/gps/dgps-ip.html),
for the Earthmate.

Curt Mills <BowHunter@mail.com> (WE7U) furthered the dgps support,
writing the portion for other GPS receivers.

None of these people have been active in 2.X and later versions; gpsd
has evolved out of recognition from the 1.X codebase.

2.X CREDITS
===========

Eric S. Raymond drastically rewrote this code in late 2004/early 2005
to clean it up and extend it. The 2.X architecture has become
significantly different and far more modularized. His new features
included:

* Documentation (what a concept!)
* Cleaned up, simplified command-line options.
* Now understands the GLL (Geographic position - Latitude, Longitude)
sentence from NMEA 3.0.
* Now parses both the NMEA 3.01 and pre-3.01 variants of the VTG sentence
correctly.
* New commands including 'y', 'w', and 'x', since obsolesced by a
JSON-based protocol.
* Massive refactoring -- one main loop now calls a self-contained
driver object for each type.
* The GPS-bashing code the daemon uses can now be directly linked as a
library, libgpsd(3).
* C and Python libraries are available to encapsulate the client side of
querying gpsd, see libgps(3).
* Cleaned-up error reporting, we don't use syslog when running in foreground
but send all error and status messages to the tty instead.
* Added -n option to do batch monitoring of GPSes.
* xgpsspeed is working again; xgps has been seriously reworked and improved.
* RPMs which include installation of gpsd to start up at boot time
are available.
* New gpsprobe program probes the capabilities of GPSes and generates
error scattergrams from fixes. (Later this moved to gpsprof.)
* Autobauding, self-configuration, and hotplugging. gpsd can now get
its device from a hotplug script, and figures out itself which baud
rate to use and what the GPS's device type is.
* Support for SiRF binary mode.
* Support for RTCM104 and AIVDM.
* Support for multiple devices.
* Other test tools -- gpsfake, gpscat, gpsmon.

Chris Kuethe <ckuethe@mainframe.cx> maintains the OpenBSD port, shipped
the 2.34 release, is our SiRF and low-level protocols expert, and does a
lot of general hacking and support. He has release authority.

Gary Miller <gem@rellim.com> wrote the driver for Garmin binary protocol
and most of the support for PPS handling on serial devices. He has release
authority.

Amaury Jacquot <sxpert@esitcom.org> added DBUS support.

Ville Nuorvala <vnuorval@tcs.hut.fi> wrote the NTRIP support.

We are delighted to acknowlege the assistance of Carl Carter, a field
application engineer at SiRF. He assisted us with the correction and
tuning of the SiRF binary-protocol driver, shedding a good deal of
light on murky aspects of the chip's behavior.

We are also delighted to acknowledge the assistance of Timo Ylhainen, VP of
Software Operations at Fastrax. He clarified a number of points about
the iTalk protocol, helping to further development of iTalk support.

3.X CREDITS
===========

The main feature of the 3.x versions is a stabilized and finalized
version of the JSON command/response protocol. This was designed and mainly
implemented by ESR. Gary Miller wrote the subframe support.