Xsens Device API and motion tracker programming in Python

I started as an intern in a project involving Awinda Motion Tracker live data recording via Python and Xsens Device API. I have managed to start recording but I haven't yet found the necessary callback options etc. to get any data saved on a log file. Just curious if some Xsens Device API users are browsing this forum and could offer some advice.

In a nutshell:

I open a control object and the port to which the Awinda USB Dongle is connected and set the Dongle options with xda.XSO_RetainLiveData, xda.XSO_Orientation and XSO_OrientationInLiveStream.

Then I set the update rate and radio channel, enable the radio and set the Dongle to measurement mode (thus setting also the motion trackers into measurement mode).

Then I create a log file and start recording.

No problems. But there's no data in the logfile after I stop recording. I'm now trying to figure out what callback options/handlers etc. I should use in order to make the recording work.