Enabling of GPS positioning

[marta-dutto]

Hello! I am using vanetza for my project and I connected a GNSS module in order to use a real GPS positioning with socktap.
Unfortunately, it seems that I was not able to activate the flag SOCKTAP_WITH_GPS in order to use GPS data instead of the fixed position.
In order to set the flag on I used the command SOCKTAP_WITH_GPSD=ON but it didn't work, can you please explain to me the correct procedure to activate the flag?
I think that the only issue is about the activation of this flag. I am attaching a screenshot of the response I got when I tried to set the gpsd parameter on the system.
Thank you very much for your time!

[riebl]

I suggest to either use ccmake or cmake-gui to enable the CMake variable SOCKTAP_WITH_GPSD. As you have already mentioned, this option is a prerequisite for the gpsd positioning provider and its gpsd-host option. After enabling the CMake option, you have to rebuild the software as well.

[marta-dutto]

I successfully enabled the option, it seemed to be set automatically on when the GPS antenna is connected.
I was wondering if there are any other parameters to activate since the GPS is working correctly on the device but the data it is not read by socktap.
Thank you very much for your help.

[riebl]

socktap simply connects to the gpsd daemon, i.e. it will "see" the same position data as for example gpsmon. Hence, you can verify if positioning is working correctly by running gpsmon in parallel.

[marta-dutto]

It actually works fine with gpsmon showing consistent data but when running socktap uses the fixed default positioning data. Could be a daemon problem in your opinion?
Thank you very much for your help.

[riebl]

Please try again with the latest version, I have just merged PR #207 which might be related to your issue.