OpenMoko GPS tracking

Finally, I have waited long enough to have binary driver for GPS available.

After installing it I wrote a small script which enables you to show GPS data on screen:

install gllin driver
ipkg install vte

install /home/root/gps.sh script below:

#!/bin/sh

if [ ! -z "$START_TERM" ] ; then

gllin=/home/root/gllin/gllin

echo "*** starting gllin"

$gllin &

sleep 3

file="/media/card/`date +%Y-%m-%d`.$$"

echo "*** creating log $file"

cat /tmp/nmeaNP | tee $file

killall gllin

kill `ps ax | grep cat | grep nmea | awk '{ print $1 }'`

DISPLAY=:0 /etc/init.d/xserver-nodm start

else

/etc/init.d/gsmd stop

echo 0 > /sys/bus/platform/devices/gta01-pm-gsm.0/power_on

START_TERM=1 DISPLAY=:0 vte -c $0

fi

create /usr/share/applications/gps.desktop icon so you can start GPS tracking from GUI:



[Desktop Entry]

Encoding=UTF-8

Name=GPS

Comment=GPS trace output

Exec=/home/root/gps.sh

Icon=openmoko-terminal

Terminal=false

Type=Application

Categories=GTK;Application;Utilities

MimeType=text/x-vcard;

SingleInstance=true

StartupNotify=true

This combination will shutdown gsm part (to preserve power), create new trace file on /media/card/date.pid and open terminal with output so you can see what is going on (openmoko-terminal2 doesn't want to accept commands, so you need to install vte for this to work. vte on the other hand doesn't accept any arguments, so we need hack with START_TERM environment variable. OOH, mrxvt crashes X server when you kill it so it wan't an option.

Happy GPS hacking...