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How can I automatically launch GPSD on startup?

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4

I am trying to figure out, what is preventing gpsd from automatically connecting to an external GPS BU 353 dongle via USB and receiving data. I have the same issue on both of my laptops (with different hardware), so this is purely a software configuration issue.

I have managed to get gpsd working manually, using the following steps, but every time my machine is powered off, I must go through these steps again.

1. sudo killall gpsd



2. 
   

   Remove any sockets gpsd might have left behind with :

   
   
   

   sudo rm /var/run/gpsd.sock

   
   


3. 
   

   Check the device path:

   
   
   

   dmesg - which shows PLU353 
   
   

   
   


4. 
   

   Ensure no other programs are using the device. There are none listed

   
   
   

   lsof -n | grep /dev/ttyUSB0
   
   

   
   


5. 
   

   Manually launch gpsd:

   
   
   

   sudo gpsd /dev/ttyUSB0 -F /var/run/gpsd.sock
   
   

   
   



6. xgps sees the GPS output - so this works

My best guesses are that gpsd needs to join a group or be given additional permissions, or alternatively, that it is an issue with udev configuration. But I am blundering about in the dark, just making wild guesses.

16.04 configuration

share|improve this question

edited 37 mins ago

Tim

19.9k1486141

asked 6 hours ago

Geoffrey-cGeoffrey-c

211

New contributor

Geoffrey-c is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Rather than lsof -n | grep /dev/ttyUSB0, I'd use sudo lsof /dev/ttyUSB0 - no need to grep
  
  – waltinator
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of How do I allow non-root access to /ttyUSB0 on 12.04?
  
  – N0rbert
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This has 2 answers from high-reputation (~20k) users, and it still hasn't been edited! Guys - tidy it up when you answer, it's a key part of keeping this site high-quality! @waltinator, remember to try to fix everything in the question when you edit it!
  
  – Tim
  41 mins ago
  
  
  

  
  
  
  

add a comment | 

4

I am trying to figure out, what is preventing gpsd from automatically connecting to an external GPS BU 353 dongle via USB and receiving data. I have the same issue on both of my laptops (with different hardware), so this is purely a software configuration issue.

I have managed to get gpsd working manually, using the following steps, but every time my machine is powered off, I must go through these steps again.

1. sudo killall gpsd



2. 
   

   Remove any sockets gpsd might have left behind with :

   
   
   

   sudo rm /var/run/gpsd.sock

   
   


3. 
   

   Check the device path:

   
   
   

   dmesg - which shows PLU353 
   
   

   
   


4. 
   

   Ensure no other programs are using the device. There are none listed

   
   
   

   lsof -n | grep /dev/ttyUSB0
   
   

   
   


5. 
   

   Manually launch gpsd:

   
   
   

   sudo gpsd /dev/ttyUSB0 -F /var/run/gpsd.sock
   
   

   
   



6. xgps sees the GPS output - so this works

My best guesses are that gpsd needs to join a group or be given additional permissions, or alternatively, that it is an issue with udev configuration. But I am blundering about in the dark, just making wild guesses.

16.04 configuration

share|improve this question

edited 37 mins ago

Tim

19.9k1486141

asked 6 hours ago

Geoffrey-cGeoffrey-c

211

New contributor

Geoffrey-c is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Rather than lsof -n | grep /dev/ttyUSB0, I'd use sudo lsof /dev/ttyUSB0 - no need to grep
  
  – waltinator
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of How do I allow non-root access to /ttyUSB0 on 12.04?
  
  – N0rbert
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This has 2 answers from high-reputation (~20k) users, and it still hasn't been edited! Guys - tidy it up when you answer, it's a key part of keeping this site high-quality! @waltinator, remember to try to fix everything in the question when you edit it!
  
  – Tim
  41 mins ago
  
  
  

  
  
  
  

add a comment | 

I am trying to figure out, what is preventing gpsd from automatically connecting to an external GPS BU 353 dongle via USB and receiving data. I have the same issue on both of my laptops (with different hardware), so this is purely a software configuration issue.

I have managed to get gpsd working manually, using the following steps, but every time my machine is powered off, I must go through these steps again.

1. sudo killall gpsd



2. 
   

   Remove any sockets gpsd might have left behind with :

   
   
   

   sudo rm /var/run/gpsd.sock

   
   


3. 
   

   Check the device path:

   
   
   

   dmesg - which shows PLU353 
   
   

   
   


4. 
   

   Ensure no other programs are using the device. There are none listed

   
   
   

   lsof -n | grep /dev/ttyUSB0
   
   

   
   


5. 
   

   Manually launch gpsd:

   
   
   

   sudo gpsd /dev/ttyUSB0 -F /var/run/gpsd.sock
   
   

   
   



6. xgps sees the GPS output - so this works

My best guesses are that gpsd needs to join a group or be given additional permissions, or alternatively, that it is an issue with udev configuration. But I am blundering about in the dark, just making wild guesses.

16.04 configuration

share|improve this question

edited 37 mins ago

Tim

19.9k1486141

asked 6 hours ago

Geoffrey-cGeoffrey-c

211

New contributor

Geoffrey-c is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 37 mins ago

Tim

19.9k1486141

asked 6 hours ago

Geoffrey-cGeoffrey-c

211

New contributor

Geoffrey-c is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 37 mins ago

Tim

19.9k1486141

asked 6 hours ago

Geoffrey-cGeoffrey-c

211

New contributor

Geoffrey-c is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 37 mins ago

Tim

19.9k1486141

edited 37 mins ago

Tim

19.9k1486141

asked 6 hours ago

Geoffrey-cGeoffrey-c

211

New contributor

Geoffrey-c is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 6 hours ago

Geoffrey-cGeoffrey-c

211

2 Answers
2

active

oldest

votes

7

You're correct - it is a group membership problem. First, see who owns the device:

ls -l /dev/ttyUSB0

On MY system, I don't have /dev/ttyUSB0, so I'll use /dev/ttyS0 instead

walt@bat:~(0)$ ls -l /dev/ttyS0

crw-rw---- 1 root dialout 4, 64 Feb 23 08:19 /dev/ttyS0

walt@bat:~(0)$ 

The output of the ls command shows that it's owned by root:dialout, and allows group access to the device.

Add your user to the dialout (or whatever is right for your system) group with:

sudo adduser $USER dialout

Then to make this group membership take effect, logout/login, OR newgrp dialout to start a shell with that group membership.

Check your group membership with /usr/bin/id.

share|improve this answer

answered 5 hours ago

waltinatorwaltinator

22.5k74169

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Hi Waltinator, I have run and get the same output ls -l /dev/ttyUSB0 giviing crw-rw---- 1 root dialout 188, 0 Feb 24 19:10 /dev/ttyUSB0
  
  – Geoffrey-c
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Additionally, I am in the dialout group as I just posted and I also tried adding gpsd into the dialout group as well and rebooting, but no joy
  
  – Geoffrey-c
  2 hours ago
  

  
  
  
  

add a comment | 

2

• open TCP port 2947 in your firewall (if you wish other network clients access)


• make sure your username is in group dialout


• in terminal, edit /etc/default/gpsd
  
  
  
  
  • 
    sudo -H gedit /etc/default/gpsd # edit the gpsd settings file
  
  
  • change DEVICES="" to DEVICES="/dev/ttyUSB0" # /dev name may be different
  
  
  • save and quit gedit
  
  
  • 
    sudo systemctl restart gpsd # restart gpsd
  
  
  
  

gpsmon, cgps, and xgps will now work properly.

share|improve this answer

edited 3 hours ago

answered 5 hours ago

heynnemaheynnema

19.6k22158

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Wrong device name, and from what can be seen in first post, he doesn't have to open any ports for it to work; only re-start gpsd as root.
  
  – vidarlo
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vidarlo fixed. Thanks! The open port IS required if you want any of the gps software to find the daemon output.
  
  – heynnema
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vidarlo please consider reversing your down vote. Thanks!
  
  – heynnema
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  No, not unless you have modified /etc/ufw/before.rules, which by default allows all on lo interface. In addition, it should be noted that gpsd may use a socket as well, which does not touch the network stack at all. As I stated; in the question it works after restarting gpsd, without any modification to the firewall rules.
  
  – vidarlo
  4 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vidarlo ok... educate me... where is there any documentation about modifying /etc/ufw/before.rules, and what would you modify there? Also, re: tcp port... "Client applications will communicate with gpsd via a TCP/IP port, 2947 by default)".
  
  – heynnema
  4 hours ago
  

  
  
  
  

 | 
show 15 more comments

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7

You're correct - it is a group membership problem. First, see who owns the device:

ls -l /dev/ttyUSB0

On MY system, I don't have /dev/ttyUSB0, so I'll use /dev/ttyS0 instead

walt@bat:~(0)$ ls -l /dev/ttyS0

crw-rw---- 1 root dialout 4, 64 Feb 23 08:19 /dev/ttyS0

walt@bat:~(0)$ 

The output of the ls command shows that it's owned by root:dialout, and allows group access to the device.

Add your user to the dialout (or whatever is right for your system) group with:

sudo adduser $USER dialout

Then to make this group membership take effect, logout/login, OR newgrp dialout to start a shell with that group membership.

Check your group membership with /usr/bin/id.

share|improve this answer

answered 5 hours ago

waltinatorwaltinator

22.5k74169

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Hi Waltinator, I have run and get the same output ls -l /dev/ttyUSB0 giviing crw-rw---- 1 root dialout 188, 0 Feb 24 19:10 /dev/ttyUSB0
  
  – Geoffrey-c
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Additionally, I am in the dialout group as I just posted and I also tried adding gpsd into the dialout group as well and rebooting, but no joy
  
  – Geoffrey-c
  2 hours ago
  

  
  
  
  

add a comment | 

7

You're correct - it is a group membership problem. First, see who owns the device:

ls -l /dev/ttyUSB0

On MY system, I don't have /dev/ttyUSB0, so I'll use /dev/ttyS0 instead

walt@bat:~(0)$ ls -l /dev/ttyS0

crw-rw---- 1 root dialout 4, 64 Feb 23 08:19 /dev/ttyS0

walt@bat:~(0)$ 

The output of the ls command shows that it's owned by root:dialout, and allows group access to the device.

Add your user to the dialout (or whatever is right for your system) group with:

sudo adduser $USER dialout

Then to make this group membership take effect, logout/login, OR newgrp dialout to start a shell with that group membership.

Check your group membership with /usr/bin/id.

share|improve this answer

answered 5 hours ago

waltinatorwaltinator

22.5k74169

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Hi Waltinator, I have run and get the same output ls -l /dev/ttyUSB0 giviing crw-rw---- 1 root dialout 188, 0 Feb 24 19:10 /dev/ttyUSB0
  
  – Geoffrey-c
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Additionally, I am in the dialout group as I just posted and I also tried adding gpsd into the dialout group as well and rebooting, but no joy
  
  – Geoffrey-c
  2 hours ago
  

  
  
  
  

add a comment | 

You're correct - it is a group membership problem. First, see who owns the device:

ls -l /dev/ttyUSB0

On MY system, I don't have /dev/ttyUSB0, so I'll use /dev/ttyS0 instead

walt@bat:~(0)$ ls -l /dev/ttyS0

crw-rw---- 1 root dialout 4, 64 Feb 23 08:19 /dev/ttyS0

walt@bat:~(0)$ 

The output of the ls command shows that it's owned by root:dialout, and allows group access to the device.

Add your user to the dialout (or whatever is right for your system) group with:

sudo adduser $USER dialout

Then to make this group membership take effect, logout/login, OR newgrp dialout to start a shell with that group membership.

Check your group membership with /usr/bin/id.

share|improve this answer

answered 5 hours ago

waltinatorwaltinator

22.5k74169

ls -l /dev/ttyUSB0

walt@bat:~(0)$ ls -l /dev/ttyS0

crw-rw---- 1 root dialout 4, 64 Feb 23 08:19 /dev/ttyS0

walt@bat:~(0)$ 

sudo adduser $USER dialout

share|improve this answer

answered 5 hours ago

waltinatorwaltinator

22.5k74169

answered 5 hours ago

waltinatorwaltinator

22.5k74169

answered 5 hours ago

waltinatorwaltinator

22.5k74169

2

• open TCP port 2947 in your firewall (if you wish other network clients access)


• make sure your username is in group dialout


• in terminal, edit /etc/default/gpsd
  
  
  
  
  • 
    sudo -H gedit /etc/default/gpsd # edit the gpsd settings file
  
  
  • change DEVICES="" to DEVICES="/dev/ttyUSB0" # /dev name may be different
  
  
  • save and quit gedit
  
  
  • 
    sudo systemctl restart gpsd # restart gpsd
  
  
  
  

gpsmon, cgps, and xgps will now work properly.

share|improve this answer

edited 3 hours ago

answered 5 hours ago

heynnemaheynnema

19.6k22158

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Wrong device name, and from what can be seen in first post, he doesn't have to open any ports for it to work; only re-start gpsd as root.
  
  – vidarlo
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vidarlo fixed. Thanks! The open port IS required if you want any of the gps software to find the daemon output.
  
  – heynnema
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vidarlo please consider reversing your down vote. Thanks!
  
  – heynnema
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  No, not unless you have modified /etc/ufw/before.rules, which by default allows all on lo interface. In addition, it should be noted that gpsd may use a socket as well, which does not touch the network stack at all. As I stated; in the question it works after restarting gpsd, without any modification to the firewall rules.
  
  – vidarlo
  4 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vidarlo ok... educate me... where is there any documentation about modifying /etc/ufw/before.rules, and what would you modify there? Also, re: tcp port... "Client applications will communicate with gpsd via a TCP/IP port, 2947 by default)".
  
  – heynnema
  4 hours ago
  

  
  
  
  

 | 
show 15 more comments

2

• open TCP port 2947 in your firewall (if you wish other network clients access)


• make sure your username is in group dialout


• in terminal, edit /etc/default/gpsd
  
  
  
  
  • 
    sudo -H gedit /etc/default/gpsd # edit the gpsd settings file
  
  
  • change DEVICES="" to DEVICES="/dev/ttyUSB0" # /dev name may be different
  
  
  • save and quit gedit
  
  
  • 
    sudo systemctl restart gpsd # restart gpsd
  
  
  
  

gpsmon, cgps, and xgps will now work properly.

share|improve this answer

edited 3 hours ago

answered 5 hours ago

heynnemaheynnema

19.6k22158

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Wrong device name, and from what can be seen in first post, he doesn't have to open any ports for it to work; only re-start gpsd as root.
  
  – vidarlo
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vidarlo fixed. Thanks! The open port IS required if you want any of the gps software to find the daemon output.
  
  – heynnema
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vidarlo please consider reversing your down vote. Thanks!
  
  – heynnema
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  No, not unless you have modified /etc/ufw/before.rules, which by default allows all on lo interface. In addition, it should be noted that gpsd may use a socket as well, which does not touch the network stack at all. As I stated; in the question it works after restarting gpsd, without any modification to the firewall rules.
  
  – vidarlo
  4 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vidarlo ok... educate me... where is there any documentation about modifying /etc/ufw/before.rules, and what would you modify there? Also, re: tcp port... "Client applications will communicate with gpsd via a TCP/IP port, 2947 by default)".
  
  – heynnema
  4 hours ago
  

  
  
  
  

 | 
show 15 more comments

• open TCP port 2947 in your firewall (if you wish other network clients access)


• make sure your username is in group dialout


• in terminal, edit /etc/default/gpsd
  
  
  
  
  • 
    sudo -H gedit /etc/default/gpsd # edit the gpsd settings file
  
  
  • change DEVICES="" to DEVICES="/dev/ttyUSB0" # /dev name may be different
  
  
  • save and quit gedit
  
  
  • 
    sudo systemctl restart gpsd # restart gpsd
  
  
  
  

gpsmon, cgps, and xgps will now work properly.

share|improve this answer

edited 3 hours ago

answered 5 hours ago

heynnemaheynnema

19.6k22158

share|improve this answer

edited 3 hours ago

answered 5 hours ago

heynnemaheynnema

19.6k22158

answered 5 hours ago

heynnemaheynnema

19.6k22158

answered 5 hours ago

heynnemaheynnema

19.6k22158