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Please visit this page for an overview of GPS and hardware mappings for your particular SBC.

The goal of this page is to detail GPS usage on the Yocto BSP.

= GPS =
{{{gpsd}}} is the daemon service that Gateworks recommends (and is preinstalled) in order to communicate effectively with an optionally loaded GPS module. There exist several clients that can talk to {{{gpsd}}} such as {{{xgps}}}.

{{{gpsd}}} runs as a service in our Yocto BSPs. By default, we have opted to disable starting it on boot so it does not 'stomp' on another processes TTY device.

In order to configure and enable {{{gpsd}}}, you will have to touch the {{{/etc/default/gpsd}}} file and enable the service. The default configuration is as follows:
{{{#!bash
root@ventana:~# cat /etc/default/gpsd
# If you must specify a non-NMEA driver, uncomment and modify the next line
GPSD_SOCKET="/var/run/gpsd.sock"
GPSD_OPTIONS=""
GPS_DEVICES=""
}}}

{{{GPS_DEVICES}}} and {{{GPSD_OPTIONS}}} should be set to the device you would like gpsd to monitor. For example, on a GW400:
{{{#!bash
GPSD_SOCKET="/var/run/gpsd.sock"
GPSD_OPTIONS="-b -n"
GPS_DEVICES="/dev/ttymxc4"
}}}

To enable {{{gpsd}}} on boot, please execute the following:
{{{#!bash
root@ventana:~# update-rc.d gpsd start 35 5 .
 Adding system startup for /etc/init.d/gpsd.
}}}

For more information, please visit [wiki:gps the gps page].