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+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, and 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 Viking, foxtrotgps and Kismet.
+
+See README.build for some build options that might be useful.
+
+To enable automatic startup of gpsd at boot time, or when a GPS device
+is connected via USB, you need to do the following four steps:
+
+1. Copy the file /lib/udev/rules.d/97-gpsd.rules to /etc/udev/rules.d/
+
+2. Edit the file /etc/udev/rules.d/97-gpsd.rules and uncomment the line
+(or lines) beginning '#ATTRS' that corresponds to your GPS hardware.
+To avoid confusion with other USB serial devices that you might have,
+do not uncomment lines that do not correspond to your GPS hardware.
+But if you do not know which line to uncomment, and you do not have any
+other serial devices, you can uncomment them all :-)
+
+3. Make the file /etc/rc.d/rc.gpsd executable.
+   chmod +x /etc/rc.d/rc.gpsd
+
+4. Add the following lines to /etc/rc.d/rc.local
+  if [ -x /etc/rc.d/rc.gpsd ]; then
+    /etc/rc.d/rc.gpsd start
+  fi
+
+Configuration options may be set in the file /etc/rc.d/rc.gpsd.conf.
+The defaults will usually be adequate.  However, if your GPS is on a
+real (non-USB) serial port -- for example, /dev/ttyS0 -- you should add
+/dev/ttyS0 to GPS_DEVICES in /etc/rc.d/rc.gpsd.conf.