Re: [gpsd-dev] Problems with C++ gpsd client

[Gary E. Miller]

Yo ldimauro!

On Fri, 19 Jan 2018 08:13:34 +0000
ldimauro <address@hidden> wrote:

> I have a gps transceiver and I'm trying to read its coordinates with  
> this C++ program using "libgpsmm" library:

I've not used the C++ library myself.

>              if ((data->status == STATUS_FIX) && (data->fix.mode ==  
> MODE_2D || data->fix.mode == MODE_3D))
>                  cout << "latitude: " << data->fix.latitude << ",  
> longitude: " <<  data->fix.latitude << ", speed: " <<
> data->fix.speed << ", timestamp: " << data->fix.time;
>              else
>                  printf("no GPS data available\n");

Just because you do not have a 2D or 3D fix does not mean you have
no data available.  Open up that test and at least report the fix
status every time you get it.  Better yet, report reception of
all messages, at least during testing.

> How can I fix this problem? I'm using debian 8 OS and the user
> belong to group "tty".

Did you try running this as root?

RGDS
GARY
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