Maemo Wiki Mirror - User contributions [en]

Mer/Documentation/N810 GPS

2009-05-22T18:48:44Z

208.42.141.209: Minor corrections

== Notes ==
*These directions are confirmed to work on Mer 0.12.

*All commands should be run as root.

*All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involving "YOURUSERNAME" [i]probably[/i] don't have to be run if your user is named "user", though this is unconfirmed.

*The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.

== Directions ==
=== Step 1: Install the necessary files ===
Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):
libsupld1
osso-gpsd
libgpsmgr
libgpsbt (?)
gpsdriver

=== Step 2: Tweak /etc/init.d/libgpsbt ===
Edit /etc/init.d/libgpsbt and change all instances of "user:users" to "YOURUSERNAME:users" There should be 2 instances you need to change.

=== Step 3: Change ownership ===
Run:
chown -R YOURUSERNAME:users /var/lib/gps

=== Step 4: Make the necessary files ===
Make the following files:

/etc/default/gps5300driver.conf:
# /etc/default/gps5300driver.conf

# The user who can control the driver
GPS5300_USER=root

# Whether the driver will self-initialize, may or may not work (more on the may not side)
GPS5300_SELFINIT=true

/etc/init.d/gps5300driver:
#!/bin/bash

GPS5300_DRIVER='/usr/sbin/gps5300driver'
GPS5300_PIDFILE='/var/run/gps5300driver.pid'
GPS5300_PRELOAD='/usr/lib/libgps5300faker.so'
CONF=/etc/default/gps5300driver.conf

if [ -f $CONF ]; then
. $CONF
fi

case $1 in
start)
echo "Starting GPS5300 driver"
if ! [ -e /sys/devices/platform/gpio-switch/gps_reset/state ]; then
echo "gps_reset state gpio switch missing"
# return 1
fi

[ -z "${GPS5300_SELFINIT}" ] && GPS5300_SELFINIT=true
${GPS5300_SELFINIT} || unset GPS5300_SELFINIT
export GPS5300_SELFINIT

[ -z "${GPS5300_USER}" ] && GPS5300_USER=root
export GPS5300_USER

export LD_PRELOAD=${GPS5300_PRELOAD}

start-stop-daemon --start \
--quiet \
--background \
--pidfile "${GPS5300_PIDFILE}" \
--make-pidfile \
--exec "${GPS5300_DRIVER}"
# --env "LD_PRELOAD=${GPS5300_PRELOAD}" \
# --exec "${GPS5300_DRIVER}"
# return 0
;;

stop)
echo "Stopping GPS5300 driver"
start-stop-daemon --stop \
--quiet \
--pidfile "${GPS5300_PIDFILE}"
rm ${GPS5300_PIDFILE}
# return 0
;;

restart|force-reload)
$0 stop
$0 start
;;

*)
echo "Usage: $0: {start|stop|restart|force-reload}"
exit 1
;;
esac

=== Step 5: Copy gpsdriver ===
Make a copy of gpsdriver to prevent confusion
cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver

=== Step 6: Install libgps5300faker.so ===
First of all, install the necessary packages (they may be removed later, this may be an excessive list or an incomplete list. Basically keep installing stuff until it stops complaining):
apt-get install build-essential m4 automake autoconf

Make the following files somewhere (they may be removed later):

preload_init.c
/*
* Copyright 2009 Luke Dashjr <luke_n8x0_gps5300driver@dashjr.org>
* Licensed for redistribution as-is;
* contact me if you want something more permissive
*/

#define _GNU_SOURCE

#include <dlfcn.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>

static struct sockaddr_un ctrl_sau = {
AF_UNIX,
"/var/lib/gps/gps_driver_ctrl\0",
};
#define CTRL_SCK_PATH ctrl_sau.sun_path

static int ctrl_sck = -1;

typedef int (*bind_t)(int, const struct sockaddr*, socklen_t);

int
bind(int sockfd, const struct sockaddr*addr, socklen_t addrlen) {
static bind_t real = NULL;
if (!real)
real = dlsym(RTLD_NEXT, "bind");

int rv = real(sockfd, addr, addrlen);

if (
addr &&
addr->sa_family == AF_FILE &&
!strcmp(CTRL_SCK_PATH,
((struct sockaddr_un*)addr)->sun_path
) &&
getenv("GPS5300_SELFINIT") &&
1
)
ctrl_sck = sockfd;

return rv;
}

typedef int (*listen_t)(int, int);

int
listen(int sockfd, int backlog) {
static listen_t real = NULL;
if (!real)
real = dlsym(RTLD_NEXT, "listen");

int rv = real(sockfd, backlog);

if (sockfd == ctrl_sck && !fork())
{
// Child process :)

int sck;
char initcmd[] = "P 3\n";

sck = socket(PF_FILE, SOCK_STREAM, 0);
if (sck < 0)
exit(1);
if (connect(sck, &ctrl_sau, sizeof ctrl_sau))
exit(1);
write(sck, initcmd, sizeof initcmd);
close(sck);

exit(0);
}

return rv;
}

preload.c:
/*
* Copyright 2009 Luke Dashjr <luke_n8x0_gps5300driver@dashjr.org>
* Licensed for redistribution as-is;
* contact me if you want something more permissive
*/

#define _GNU_SOURCE

#include <dlfcn.h>
#include <pwd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>

typedef struct passwd* (*getpwnam_t)(const char*);

struct passwd *
getpwnam(const char *name) {
static getpwnam_t real = NULL;
if (!real)
real = dlsym(RTLD_NEXT, "getpwnam");

if (!strcmp(name, "user"))
{
const char*username = getenv("GPS5300_USER");
if (username)
name = username;
}

return real(name);
}

Compile them:
cd /path/to/source/files/
gcc -shared -fPIC -ldl preload.c preload_init.c -o libgps5300faker.so

Put libgps5300faker.so in /usr/lib (assuming you're still in the same directory):
cp libgps5300faker.so /usr/lib

=== Step 7: Reboot ===
Reboot:
reboot

=== Step 8: Prepare to use the GPS ===
Get ready to use the GPS:
/etc/init.d/libgpsbt restart
/etc/init.d/gpsdriver restart
/etc/init.d/gps5300driver restart

=== Step 9: Start GPSD ===
Start GPSD:
gpsd -n -N -D2 /dev/pgps

When you start getting messages like:

gpsd: <= GPS: $GPGGA,183757.000,4504.94573,N,09300.43367,W,1,04,2.7,288.8,M,-31.3,M,,*60
gpsd: <= GPS: $GPGLL,4504.94573,N,09300.43367,W,183757.000,A,A*42
gpsd: can't use GGA/GGL time until after ZDA or RMC has supplied a year.
gpsd: <= GPS: $GPGSA,A,3,31,11,30,32,,,,,,,,,5.9,2.7,5.3*3D
gpsd: <= GPS: $GPGST,183757.000,14.3,13.2,37.3,19.1,16.0,32.4,73.2*54

You have a lock and are ready to use your GPS (I've also gotten other messages indicating the GPS is ready. Basically anything new/other than what it routinely spits out should be a good indicator).

Mer/Documentation/N810 GPS

2009-05-22T18:46:48Z

208.42.141.209: Added libgps5300faker.so code/directions

== Notes ==
*These directions are confirmed to work on Mer 0.12.

*All commands should be run as root.

*All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involving "YOURUSERNAME" [i]probably[/i] don't have to be run if your user is named "user", though this is unconfirmed.

*The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.

== Directions ==
=== Step 1: Install the necessary files ===
Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):
libsupld1
osso-gpsd
libgpsmgr
libgpsbt (?)
gpsdriver

=== Step 2: Tweak /etc/init.d/libgpsbt ===
Edit /etc/init.d/libgpsbt and change all instances of "user:users" to "YOURUSERNAME:users" There should be 2 instances you need to change.

=== Step 3: Change ownership ===
Run:
chown -R YOURUSERNAME:users /var/lib/gps

=== Step 4: Make the necessary files ===
Make the following files:

/etc/default/gps5300driver.conf:
# /etc/default/gps5300driver.conf

# The user who can control the driver
GPS5300_USER=root

# Whether the driver will self-initialize, may or may not work (more on the may not side)
GPS5300_SELFINIT=true

/etc/init.d/gps5300driver:
#!/bin/bash

GPS5300_DRIVER='/usr/sbin/gps5300driver'
GPS5300_PIDFILE='/var/run/gps5300driver.pid'
GPS5300_PRELOAD='/usr/lib/libgps5300faker.so'
CONF=/etc/default/gps5300driver.conf

if [ -f $CONF ]; then
. $CONF
fi

case $1 in
start)
echo "Starting GPS5300 driver"
if ! [ -e /sys/devices/platform/gpio-switch/gps_reset/state ]; then
echo "gps_reset state gpio switch missing"
# return 1
fi

[ -z "${GPS5300_SELFINIT}" ] && GPS5300_SELFINIT=true
${GPS5300_SELFINIT} || unset GPS5300_SELFINIT
export GPS5300_SELFINIT

[ -z "${GPS5300_USER}" ] && GPS5300_USER=root
export GPS5300_USER

export LD_PRELOAD=${GPS5300_PRELOAD}

start-stop-daemon --start \
--quiet \
--background \
--pidfile "${GPS5300_PIDFILE}" \
--make-pidfile \
--exec "${GPS5300_DRIVER}"
# --env "LD_PRELOAD=${GPS5300_PRELOAD}" \
# --exec "${GPS5300_DRIVER}"
# return 0
;;

stop)
echo "Stopping GPS5300 driver"
start-stop-daemon --stop \
--quiet \
--pidfile "${GPS5300_PIDFILE}"
rm ${GPS5300_PIDFILE}
# return 0
;;

restart|force-reload)
$0 stop
$0 start
;;

*)
echo "Usage: $0: {start|stop|restart|force-reload}"
exit 1
;;
esac

=== Step 5: Copy gpsdriver ===
Make a copy of gpsdriver to prevent confusion
cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver

=== Step 6: Install libgps5300faker.so ===
First of all, install the necessary packages (they may be removed later, this may be an excessive list or an incomplete list. Basically keep installing stuff until it stops complaining):
apt-get install build-essential m4 automake autoconf

Make the following files somewhere (they may be removed later):

preload_init.c
/*
* Copyright 2009 Luke Dashjr <luke_n8x0_gps5300driver@dashjr.org>
* Licensed for redistribution as-is;
* contact me if you want something more permissive
*/

#define _GNU_SOURCE

#include <dlfcn.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>

static struct sockaddr_un ctrl_sau = {
AF_UNIX,
"/var/lib/gps/gps_driver_ctrl\0",
};
#define CTRL_SCK_PATH ctrl_sau.sun_path

static int ctrl_sck = -1;

typedef int (*bind_t)(int, const struct sockaddr*, socklen_t);

int
bind(int sockfd, const struct sockaddr*addr, socklen_t addrlen) {
static bind_t real = NULL;
if (!real)
real = dlsym(RTLD_NEXT, "bind");

int rv = real(sockfd, addr, addrlen);

if (
addr &&
addr->sa_family == AF_FILE &&
!strcmp(CTRL_SCK_PATH,
((struct sockaddr_un*)addr)->sun_path
) &&
getenv("GPS5300_SELFINIT") &&
1
)
ctrl_sck = sockfd;

return rv;
}

typedef int (*listen_t)(int, int);

int
listen(int sockfd, int backlog) {
static listen_t real = NULL;
if (!real)
real = dlsym(RTLD_NEXT, "listen");

int rv = real(sockfd, backlog);

if (sockfd == ctrl_sck && !fork())
{
// Child process :)

int sck;
char initcmd[] = "P 3\n";

sck = socket(PF_FILE, SOCK_STREAM, 0);
if (sck < 0)
exit(1);
if (connect(sck, &ctrl_sau, sizeof ctrl_sau))
exit(1);
write(sck, initcmd, sizeof initcmd);
close(sck);

exit(0);
}

return rv;
}

preload.c:
/*
* Copyright 2009 Luke Dashjr <luke_n8x0_gps5300driver@dashjr.org>
* Licensed for redistribution as-is;
* contact me if you want something more permissive
*/

#define _GNU_SOURCE

#include <dlfcn.h>
#include <pwd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>

typedef struct passwd* (*getpwnam_t)(const char*);

struct passwd *
getpwnam(const char *name) {
static getpwnam_t real = NULL;
if (!real)
real = dlsym(RTLD_NEXT, "getpwnam");

if (!strcmp(name, "user"))
{
const char*username = getenv("GPS5300_USER");
if (username)
name = username;
}

return real(name);
}

Compile them:
gcc -shared -fPIC -ldl preload.c preload_init.c -o libgps5300faker.so

Put libgps5300faker.so in /usr/lib (Not posted anywhere yet):
cp /path/to/libgps5300faker.so /usr/lib

=== Step 7: Reboot ===
Reboot:
reboot

=== Step 8: Prepare to use the GPS ===
Get ready to use the GPS:
/etc/init.d/libgpsbt restart
/etc/init.d/gpsdriver restart
/etc/init.d/gps5300driver restart

=== Step 9: Start GPSD ===
Start GPSD:
gpsd -n -N -D2 /dev/pgps

When you start getting messages like:

gpsd: <= GPS: $GPGGA,183757.000,4504.94573,N,09300.43367,W,1,04,2.7,288.8,M,-31.3,M,,*60
gpsd: <= GPS: $GPGLL,4504.94573,N,09300.43367,W,183757.000,A,A*42
gpsd: can't use GGA/GGL time until after ZDA or RMC has supplied a year.
gpsd: <= GPS: $GPGSA,A,3,31,11,30,32,,,,,,,,,5.9,2.7,5.3*3D
gpsd: <= GPS: $GPGST,183757.000,14.3,13.2,37.3,19.1,16.0,32.4,73.2*54

You have a lock and are ready to use your GPS (I've also gotten other messages indicating the GPS is ready. Basically anything new/other than what it routinely spits out should be a good indicator).

Mer/Documentation/N810 GPS

2009-05-22T18:20:33Z

208.42.141.209: /* Directions */

Mer/Documentation/N810 GPS

2009-05-22T18:14:08Z

208.42.141.209: More formatting

Mer/Documentation/N810 GPS

2009-05-22T18:09:27Z

208.42.141.209: Many formatting fixes

These directions are confirmed to work on Mer 0.12.

All commands should be run as root.

All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involving "YOURUSERNAME" [i]probably[/i] don't have to be run if your user is named "user", though this is unconfirmed.

The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.

The formatting is completely messed up, so if you care to look at directions in any usable way, click the edit link.

1. Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):
libsupld1
osso-gpsd
libgpsmgr
libgpsbt (?)
gpsdriver

2. Edit /etc/init.d/libgpsbt and change all instances of "user:users" to "YOURUSERNAME:users" There should be 2 instances you need to change.

3. Run:
chown -R YOURUSERNAME:users /var/lib/gps

4. Make the following files:

/etc/default/gps5300driver.conf:
# /etc/default/gps5300driver.conf

# The user who can control the driver
GPS5300_USER=root

# Whether the driver will self-initialize, may or may not work (more on the may not side)
GPS5300_SELFINIT=true

/etc/init.d/gps5300driver:
#!/bin/bash

GPS5300_DRIVER='/usr/sbin/gps5300driver'
GPS5300_PIDFILE='/var/run/gps5300driver.pid'
GPS5300_PRELOAD='/usr/lib/libgps5300faker.so'
CONF=/etc/default/gps5300driver.conf

if [ -f $CONF ]; then
. $CONF
fi

case $1 in
start)
echo "Starting GPS5300 driver"
if ! [ -e /sys/devices/platform/gpio-switch/gps_reset/state ]; then
echo "gps_reset state gpio switch missing"
# return 1
fi

[ -z "${GPS5300_SELFINIT}" ] && GPS5300_SELFINIT=true
${GPS5300_SELFINIT} || unset GPS5300_SELFINIT
export GPS5300_SELFINIT

[ -z "${GPS5300_USER}" ] && GPS5300_USER=root
export GPS5300_USER

export LD_PRELOAD=${GPS5300_PRELOAD}

start-stop-daemon --start \
--quiet \
--background \
--pidfile "${GPS5300_PIDFILE}" \
--make-pidfile \
--exec "${GPS5300_DRIVER}"
# --env "LD_PRELOAD=${GPS5300_PRELOAD}" \
# --exec "${GPS5300_DRIVER}"
# return 0
;;

stop)
echo "Stopping GPS5300 driver"
start-stop-daemon --stop \
--quiet \
--pidfile "${GPS5300_PIDFILE}"
rm ${GPS5300_PIDFILE}
# return 0
;;

restart|force-reload)
$0 stop
$0 start
;;

*)
echo "Usage: $0: {start|stop|restart|force-reload}"
exit 1
;;
esac

5. Run
cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver

6. Put libgps5300faker.so in /usr/lib (Not posted anywhere yet):
cp /path/to/libgps5300faker.so /usr/lib

7. Reboot:
reboot

8. Get ready to use the GPS:
/etc/init.d/libgpsbt restart
/etc/init.d/gpsdriver restart
/etc/init.d/gps5300driver restart

9. Start GPSD:
gpsd -n -N -D2 /dev/pgps

When you start getting messages like:

gpsd: <= GPS: $GPGGA,183757.000,4504.94573,N,09300.43367,W,1,04,2.7,288.8,M,-31.3,M,,*60
gpsd: <= GPS: $GPGLL,4504.94573,N,09300.43367,W,183757.000,A,A*42
gpsd: can't use GGA/GGL time until after ZDA or RMC has supplied a year.
gpsd: <= GPS: $GPGSA,A,3,31,11,30,32,,,,,,,,,5.9,2.7,5.3*3D
gpsd: <= GPS: $GPGST,183757.000,14.3,13.2,37.3,19.1,16.0,32.4,73.2*54

You have a lock and are ready to use your GPS.

Mer/Documentation/N810 GPS

2009-05-19T19:11:53Z

208.42.141.209:

These directions are confirmed to work on Mer 0.12.

All commands should be run as root.

All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involving "YOURUSERNAME" [i]probably[/i] don't have to be run if your user is named "user", though this is unconfirmed.

The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.

The formatting is completely messed up, so if you care to look at directions in any usable way, click the edit link.

1. Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):
libsupld1
osso-gpsd
libgpsmgr
libgpsbt (?)
gpsdriver

2. Edit /etc/init.d/libgpsbt and change all instances of "user:users" to "YOURUSERNAME:users" There should be 2 instances you need to change.

3. Run: chown -R YOURUSERNAME:users /var/lib/gps

4. Make the following files:

/etc/default/gps5300driver.conf
=================CUT====================

# /etc/default/gps5300driver.conf

# The user who can control the driver
GPS5300_USER=root

# Whether the driver will self-initialize, may or may not work (more on the may not side)
GPS5300_SELFINIT=true

=================CUT====================

/etc/init.d/gps5300driver
=================CUT====================

#!/bin/bash

GPS5300_DRIVER='/usr/sbin/gps5300driver'
GPS5300_PIDFILE='/var/run/gps5300driver.pid'
GPS5300_PRELOAD='/usr/lib/libgps5300faker.so'
CONF=/etc/default/gps5300driver.conf

if [ -f $CONF ]; then
. $CONF
fi

case $1 in
start)
echo "Starting GPS5300 driver"
if ! [ -e /sys/devices/platform/gpio-switch/gps_reset/state ]; then
echo "gps_reset state gpio switch missing"
# return 1
fi

[ -z "${GPS5300_SELFINIT}" ] && GPS5300_SELFINIT=true
${GPS5300_SELFINIT} || unset GPS5300_SELFINIT
export GPS5300_SELFINIT

[ -z "${GPS5300_USER}" ] && GPS5300_USER=root
export GPS5300_USER

export LD_PRELOAD=${GPS5300_PRELOAD}

start-stop-daemon --start \
--quiet \
--background \
--pidfile "${GPS5300_PIDFILE}" \
--make-pidfile \
--exec "${GPS5300_DRIVER}"
# --env "LD_PRELOAD=${GPS5300_PRELOAD}" \
# --exec "${GPS5300_DRIVER}"
# return 0
;;

stop)
echo "Stopping GPS5300 driver"
start-stop-daemon --stop \
--quiet \
--pidfile "${GPS5300_PIDFILE}"
rm ${GPS5300_PIDFILE}
# return 0
;;

restart|force-reload)
$0 stop
$0 start
;;

*)
echo "Usage: $0: {start|stop|restart|force-reload}"
exit 1
;;
esac

=================CUT====================

5. Run "cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver"

6. Put libgps5300faker.so in /usr/lib (Not posted anywhere yet)

7. Reboot

8. Run:
/etc/init.d/libgpsbt restart
/etc/init.d/gpsdriver restart
/etc/init.d/gps5300driver restart

9. Run: "gpsd -n -N -D2 /dev/pgps"

When you start getting messages like:

gpsd: <= GPS: $GPGGA,183757.000,4504.94573,N,09300.43367,W,1,04,2.7,288.8,M,-31.3,M,,*60
gpsd: <= GPS: $GPGLL,4504.94573,N,09300.43367,W,183757.000,A,A*42
gpsd: can't use GGA/GGL time until after ZDA or RMC has supplied a year.
gpsd: <= GPS: $GPGSA,A,3,31,11,30,32,,,,,,,,,5.9,2.7,5.3*3D
gpsd: <= GPS: $GPGST,183757.000,14.3,13.2,37.3,19.1,16.0,32.4,73.2*54

You've got a lock and are ready to use your GPS.

Mer/Documentation/N810 GPS

2009-05-19T19:00:56Z

208.42.141.209:

These directions are confirmed to work on Mer 0.12.

All commands should be run as root.

All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involving "YOURUSERNAME" [i]probably[/i] don't have to be run if your user is named "user", though this is unconfirmed.

The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.

1. Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):
libsupld1
osso-gpsd
libgpsmgr
libgpsbt (?)
gpsdriver

2. Edit /etc/init.d/libgpsbt and change all instances of "user:users" to "YOURUSERNAME:users" There should be 2 instances you need to change.

3. Run: chown -R YOURUSERNAME:users /var/lib/gps

4. Make the following files:

/etc/default/gps5300driver.conf
=================CUT====================

# /etc/default/gps5300driver.conf

# The user who can control the driver
GPS5300_USER=root

# Whether the driver will self-initialize, may or may not work (more on the may not side)
GPS5300_SELFINIT=true

=================CUT====================

/etc/init.d/gps5300driver
=================CUT====================

#!/bin/bash

GPS5300_DRIVER='/usr/sbin/gps5300driver'
GPS5300_PIDFILE='/var/run/gps5300driver.pid'
GPS5300_PRELOAD='/usr/lib/libgps5300faker.so'
CONF=/etc/default/gps5300driver.conf

if [ -f $CONF ]; then
. $CONF
fi

case $1 in
start)
echo "Starting GPS5300 driver"
if ! [ -e /sys/devices/platform/gpio-switch/gps_reset/state ]; then
echo "gps_reset state gpio switch missing"
# return 1
fi

[ -z "${GPS5300_SELFINIT}" ] && GPS5300_SELFINIT=true
${GPS5300_SELFINIT} || unset GPS5300_SELFINIT
export GPS5300_SELFINIT

[ -z "${GPS5300_USER}" ] && GPS5300_USER=root
export GPS5300_USER

export LD_PRELOAD=${GPS5300_PRELOAD}

start-stop-daemon --start \
--quiet \
--background \
--pidfile "${GPS5300_PIDFILE}" \
--make-pidfile \
--exec "${GPS5300_DRIVER}"
# --env "LD_PRELOAD=${GPS5300_PRELOAD}" \
# --exec "${GPS5300_DRIVER}"
# return 0
;;

stop)
echo "Stopping GPS5300 driver"
start-stop-daemon --stop \
--quiet \
--pidfile "${GPS5300_PIDFILE}"
rm ${GPS5300_PIDFILE}
# return 0
;;

restart|force-reload)
$0 stop
$0 start
;;

*)
echo "Usage: $0: {start|stop|restart|force-reload}"
exit 1
;;
esac

=================CUT====================

5. Run "cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver"

6. Put libgps5300faker.so in /usr/lib (HOSTING)

7. Reboot

8. Run:
/etc/init.d/libgpsbt restart
/etc/init.d/gpsdriver restart
/etc/init.d/gps5300driver restart

9. Run: "gpsd -n -N -D2 /dev/pgps"

When you start getting messages like:

gpsd: <= GPS: $GPGGA,183757.000,4504.94573,N,09300.43367,W,1,04,2.7,288.8,M,-31.3,M,,*60
gpsd: <= GPS: $GPGLL,4504.94573,N,09300.43367,W,183757.000,A,A*42
gpsd: can't use GGA/GGL time until after ZDA or RMC has supplied a year.
gpsd: <= GPS: $GPGSA,A,3,31,11,30,32,,,,,,,,,5.9,2.7,5.3*3D
gpsd: <= GPS: $GPGST,183757.000,14.3,13.2,37.3,19.1,16.0,32.4,73.2*54

You've got a lock and are ready to use your GPS.

Mer/Documentation/N810 GPS

2009-05-19T18:54:29Z

208.42.141.209: New page: These directions are confirmed to work on Mer 0.12. All commands should be run as root. All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involvi...

These directions are confirmed to work on Mer 0.12.

All commands should be run as root.

All instances of "YOURUSERNAME" should be changed to whatever your user is named. Commands involving "YOURUSERNAME" [i]probably[/i] don't have to be run if your user is named "user", though this is unconfirmed.

The time to first fix (TTFF) is quite long (~30 min), and GPSD quits after the last client disconnects. Keep this in mind.

1. Install the following packages from the Maemo Updates repository (you can install them on Maemo, then copy the packages from the apt cache):
libsupld1
osso-gpsd
libgpsmgr
libgpsbt (?)
gpsdriver

2. Edit /etc/init.d/libgpsbt and change all instances of "user:users" to "YOURUSERNAME:users" There should be 2 instances you need to change.

3. Run: chown -R YOURUSERNAME:users /var/lib/gps

4. Make the following files:

/etc/default/gps5300driver.conf
#=================CUT====================

# /etc/default/gps5300driver.conf

# The user who can control the driver
GPS5300_USER=root

# Whether the driver will self-initialize, may or may not work (more on the may not side)
GPS5300_SELFINIT=true

#=================CUT====================

/etc/init.d/gps5300driver
#=================CUT====================

#!/bin/bash

GPS5300_DRIVER='/usr/sbin/gps5300driver'
GPS5300_PIDFILE='/var/run/gps5300driver.pid'
GPS5300_PRELOAD='/usr/lib/libgps5300faker.so'
CONF=/etc/default/gps5300driver.conf

if [ -f $CONF ]; then
. $CONF
fi

case $1 in
start)
echo "Starting GPS5300 driver"
if ! [ -e /sys/devices/platform/gpio-switch/gps_reset/state ]; then
echo "gps_reset state gpio switch missing"
# return 1
fi

[ -z "${GPS5300_SELFINIT}" ] && GPS5300_SELFINIT=true
${GPS5300_SELFINIT} || unset GPS5300_SELFINIT
export GPS5300_SELFINIT

[ -z "${GPS5300_USER}" ] && GPS5300_USER=root
export GPS5300_USER

export LD_PRELOAD=${GPS5300_PRELOAD}

start-stop-daemon --start \
--quiet \
--background \
--pidfile "${GPS5300_PIDFILE}" \
--make-pidfile \
--exec "${GPS5300_DRIVER}"
# --env "LD_PRELOAD=${GPS5300_PRELOAD}" \
# --exec "${GPS5300_DRIVER}"
# return 0
;;

stop)
echo "Stopping GPS5300 driver"
start-stop-daemon --stop \
--quiet \
--pidfile "${GPS5300_PIDFILE}"
rm ${GPS5300_PIDFILE}
# return 0
;;

restart|force-reload)
$0 stop
$0 start
;;

*)
echo "Usage: $0: {start|stop|restart|force-reload}"
exit 1
;;
esac

#=================CUT====================

5. Run "cp /usr/sbin/gpsdriver /usr/sbin/gps5300driver"

6. Put libgps5300faker.so in /usr/lib (HOSTING)

7. Reboot

8. Run:
/etc/init.d/libgpsbt restart
/etc/init.d/gpsdriver restart
/etc/init.d/gps5300driver restart

9. Run: "gpsd -n -N -D2 /dev/pgps"

When you start getting messages like:

gpsd: <= GPS: $GPGGA,183757.000,4504.94573,N,09300.43367,W,1,04,2.7,288.8,M,-31.3,M,,*60
gpsd: <= GPS: $GPGLL,4504.94573,N,09300.43367,W,183757.000,A,A*42
gpsd: can't use GGA/GGL time until after ZDA or RMC has supplied a year.
gpsd: <= GPS: $GPGSA,A,3,31,11,30,32,,,,,,,,,5.9,2.7,5.3*3D
gpsd: <= GPS: $GPGST,183757.000,14.3,13.2,37.3,19.1,16.0,32.4,73.2*54

You've got a lock and are ready to use your GPS.