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am having a similar issue. I can see that the receiver is getting gps data (lat/long/etc.) by using:
gpsmon /dev/gps0

If I query: gpsmon /dev/ttyUSB0 (there is no reply.)

However: ls -l /dev/gps0

returns: lrwxrwxrwx 1 xxx xxx 7 Dec 31 1969 /dev/gps0 -> ttyUSB0

So, I take that to mean those are linked.

Even CuteCom is able to connect to /dev/ttyUSB0 and stream data. But I can't get cgps -s or xgps to seem to connect to the device. I've terminated all instances, restarted them, rebooted, etc. (many times)

Any ideas? Thanks.

Mark
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1 Answers1

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May be it is because rpi lacks a real time clock module. Sync your time first and try again.