gpsd is a service daemon that monitors one or more GPSes attached to
a host computer through serial or USB ports, making all data on the
location/course/velocity available to be queried on TCP port 2947
of the host computer. With gpsd, multiple GPS client applications
(such as navigational and wardriving software) can share access to
GPSes without contention or loss of data.
Applications that presently use gpsd include pyGPS, Kismet, GPSdrive,
gpeGPS, position, roadmap, roadnav, and gaia.
Enabling and disabling devices and features
-------------------------------------------
Support for various devices and features may be enabled
and/or disabled by setting the variables ENABLE and DISABLE
before running gpsd.SlackBuild, for example
ENABLE=garmintxt DISABLE="garmin dbus" ./gpsd.SlackBuild
The following devices and features may be enabled
(by default they are disabled).
garmintxt enable Garmin Simple Text support
tnt enable True North Technologies support
oceanserver enable OceanServer support
profiling enable profiling support
pps-on-cts Enable PPS pulse on CTS rather than DCD
gpsd-user=username
GPSD privilege revokation user (default 'nobody')
fixed-port-speed=nnn
compile with fixed serial port speed
max-clients=nnn
compile with limited maximum clients
max-devices=nnn
compile with maximum allowed devices
squelch squelch gpsd_report and gpsd_hexdump to save cpu
The following devices and features may be disabled
(by default they are enabled).
dbus disable DBUS support
nmea disable NMEA support
sirf disable SiRF chipset support
superstar2 disable SuperStarII chipset support
tsip disable Trimble TSIP support
fv18 disable San Jose Navigation FV-18 support
tripmate disable DeLorme TripMate support
earthmate disable DeLorme EarthMate Zodiac support
itrax disable iTrax hardware support
ashtech disable Ashtech support
navcom disable Navcom support
garmin disable Garmin kernel driver support
ubx disable UBX Protocol support
evermore disable EverMore binary support
mkt3301 disable MKT-3301 support
gpsclock disable GPSClock support
rtcm104v2 disable rtcm104v2 support
rtcm104v3 disable rtcm104v3 support
ntrip disable NTRIP support
aivdm disable Aivdm support
ntpshm disable NTP time hinting support
pps disable PPS time syncing support
reconfigure do not allow gpsd to change device settings
controlsend do not allow gpsd to change device settings
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