GPSD on Cygwin

kiss2000 · 06-26-2006

I have just installed Cygwin on my laptop, (Window$ XP, SP2) installed kismet (2006-04-R1) configured it to run 2 drones all with out any problems. But then it came to GPSD, (2.30) I have followed Renderman's guide and all is working once. Yep once, if I try to run GPSD again it fails to talk to the GPS. (a USB GPS puck with USB to serial emulator running)

If I the reinstall GPSD I start all over again, it will work once then fail. One thing that I have noticed that if I have the GPS Gate window open and give the GPSD command in Cygwin ./gpsd /dev/com10 and variations of (./gpsd -p /dev/com10 -s 4800 with and without the -k option) In the GPS Gate window it shows GPSD connecting to the com port for about a second or so then drop the connection. I can also telnet into GPSD and see the NMEA output once.

Any one with any ideas?

Thorn · 06-27-2006

Have you tried the -k option. My undertsanding is that it's there to be used in circumstances where a USB/serial converter isn't staying open, which sounds exactly like what you're experiencing.

kiss2000 · 06-27-2006

Yep, I have tried with and without the -k option. It seem like GPSD is connecting to the com port for a split second and then dropping the connection. I have also tried just about every combination of commands that I can think of to start GPSD as well. I am starting to think that this maybe a issue Windows managing the port or the USB to serial emulator software. The only thing that I can't work out is why it works once, and when it works it works really well. (full 3D fix) Then if I reinstall GPSD it will work again, once.

Dutch · 06-27-2006

Quote:

Originally Posted by kiss2000

Yep, I have tried with and without the -k option. It seem like GPSD is connecting to the com port for a split second and then dropping the connection. I have also tried just about every combination of commands that I can think of to start GPSD as well. I am starting to think that this maybe a issue Windows managing the port or the USB to serial emulator software. The only thing that I can't work out is why it works once, and when it works it works really well. (full 3D fix) Then if I reinstall GPSD it will work again, once.

It might be some kind of timing issues, since you are using three layers of virtualization : USB-virtual comport driver -> GPSGate virtual comports -> Cygwin /dev/ttyS virtualization.

Have you tried dropping the middle man, and not use GPSGate ? I.E. setup cygwin and GPSD to connect to the comport supplied by the USB2serial driver ? I do realise you will not be able to share the GPS datastream with other native Win programs that way.

Dutch

kiss2000 · 06-27-2006

Quote:

Originally Posted by Dutch

It might be some kind of timing issues, since you are using three layers of virtualization : USB-virtual comport driver -> GPSGate virtual comports -> Cygwin /dev/ttyS virtualization.

Have you tried dropping the middle man, and not use GPSGate ? I.E. setup cygwin and GPSD to connect to the comport supplied by the USB2serial driver ? I do realise you will not be able to share the GPS datastream with other native Win programs that way.

Dutch

Tried that

At the moment I am trying to find out why it works once. I figure that if I can work that out it might give me a clue as to what is going on.

I know that the GPS works fine as it will run GDSD 2.30 on my Linux laptop without a single problem. The USB to serial software with or without GPS Gate running works fine on all of the programs that I have used in the past. Its even worked fine with GPSD a weeks ago before I formatted the laptop.(why did I have to try Vista

)

I am really starting to thing that this could be a com port issue rather than a Cygwin/GPSD issue. I am going to try it on a different box when I finish work and see what happens.

kiss2000 · 08-01-2006

OK, I have come up with a fix. (well sort of) I have used Renderman's Kiswin32 package and made a quick and very dirty .Bat script.

Code:

@echo off
cd c:\kiswin32-2005-08-r1-gpsd\bin
gpsd -N /dev/com3

Then I had a thought if I could run GPSD though it why not run kismet and do away with cygwin all together. So I came up with two more .Bat script's. (both equally as dirty) The first being kismet_server.bat

Code:

@echo off
cd c:\kiswin32-2005-08-r1-gpsd
kismet_server -f \kiswin32-2005-08-R1-GPSD\ETC/kismet.conf

And the second being kismet_client.bat

Code:

cd c:\kiswin32-2005-08-r1-gpsd
kismet_client -f c:\kiswin32-2005-08-r1-gpsd/etc/kismet.conf -u c:\kiswin32-2005-08-r1-gpsd/etc/kismet_ui.conf

The next step is going to be to combine all of the .Bat scripts and and compile them into one .EXE to make a package that is very easy to use and that still gives me full control over the kismet.conf file.

PS: Dose anyone know if it is possible to use the -k option with GPSD within the kiswin32 package? I cant seem to get it to work and it is not listed withing the --help.

goldfndr · 08-05-2006

Quote:

Originally Posted by kiss2000

PS: Dose anyone know if it is possible to use the -k option with GPSD within the kiswin32 package? I cant seem to get it to work and it is not listed withing the --help.

Have you tried the -n option?

Quote:

= don't wait for client connects to poll GPS

If you're [re]packaging it, I suggest also trying out cgps.exe, as that confirms gpsd functionality better than kismet does.

06-26-2006	#1 (permalink)
kiss2000 Registered Member Join Date: Mar 2005 Posts: 27	GPSD on Cygwin I have just installed Cygwin on my laptop, (Window$ XP, SP2) installed kismet (2006-04-R1) configured it to run 2 drones all with out any problems. But then it came to GPSD, (2.30) I have followed Renderman's guide and all is working once. Yep once, if I try to run GPSD again it fails to talk to the GPS. (a USB GPS puck with USB to serial emulator running) If I the reinstall GPSD I start all over again, it will work once then fail. One thing that I have noticed that if I have the GPS Gate window open and give the GPSD command in Cygwin ./gpsd /dev/com10 and variations of (./gpsd -p /dev/com10 -s 4800 with and without the -k option) In the GPS Gate window it shows GPSD connecting to the com port for about a second or so then drop the connection. I can also telnet into GPSD and see the NMEA output once. Any one with any ideas? Last edited by kiss2000 : 06-26-2006 at 05:26 PM.

06-27-2006	#2 (permalink)
Thorn Did you do the math? Join Date: Apr 2002 Location: Villa Straylight Posts: 10,098	Have you tried the -k option. My undertsanding is that it's there to be used in circumstances where a USB/serial converter isn't staying open, which sounds exactly like what you're experiencing. __________________ Thorn "I'm The Doctor. I'm a Time Lord. I am from the planet Gallifrey in the constellation Kasterborous. I'm 903 years old and I am the man who is going to save your lives and all 6 billion people on the planet below... You got a problem with that?"

08-01-2006	#6 (permalink)
kiss2000 Registered Member Join Date: Mar 2005 Posts: 27	OK, I have come up with a fix. (well sort of) I have used Renderman's Kiswin32 package and made a quick and very dirty .Bat script. Code: @echo off cd c:\kiswin32-2005-08-r1-gpsd\bin gpsd -N /dev/com3 Then I had a thought if I could run GPSD though it why not run kismet and do away with cygwin all together. So I came up with two more .Bat script's. (both equally as dirty) The first being kismet_server.bat Code: @echo off cd c:\kiswin32-2005-08-r1-gpsd kismet_server -f \kiswin32-2005-08-R1-GPSD\ETC/kismet.conf And the second being kismet_client.bat Code: cd c:\kiswin32-2005-08-r1-gpsd kismet_client -f c:\kiswin32-2005-08-r1-gpsd/etc/kismet.conf -u c:\kiswin32-2005-08-r1-gpsd/etc/kismet_ui.conf The next step is going to be to combine all of the .Bat scripts and and compile them into one .EXE to make a package that is very easy to use and that still gives me full control over the kismet.conf file. PS: Dose anyone know if it is possible to use the -k option with GPSD within the kiswin32 package? I cant seem to get it to work and it is not listed withing the --help.

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06-27-2006	#3 (permalink)
kiss2000 Registered Member Join Date: Mar 2005 Posts: 27	Yep, I have tried with and without the -k option. It seem like GPSD is connecting to the com port for a split second and then dropping the connection. I have also tried just about every combination of commands that I can think of to start GPSD as well. I am starting to think that this maybe a issue Windows managing the port or the USB to serial emulator software. The only thing that I can't work out is why it works once, and when it works it works really well. (full 3D fix) Then if I reinstall GPSD it will work again, once.