Re: [gpsd-users] Polling for GPS data using python3 API

[pisymbol .]

On Mon, Aug 12, 2019 at 5:39 PM pisymbol . <address@hidden> wrote:

On Mon, Aug 12, 2019 at 5:22 PM pisymbol . <address@hidden> wrote:

On Mon, Aug 12, 2019 at 5:12 PM pisymbol . <address@hidden> wrote:

On Mon, Aug 12, 2019 at 5:09 PM pisymbol . <address@hidden> wrote:

On Mon, Aug 12, 2019 at 5:00 PM Gary E. Miller <address@hidden> wrote:

Yo pisymbol!

On Mon, 12 Aug 2019 16:49:48 -0400
"pisymbol ." <address@hidden> wrote:

> Still getting None now on 3.19:
>
> $ pip3 list | grep gps
> gps                           3.19

OK. so how are you starting gpsd?

Usually something like this:

# gpsd -n /dev/ttyS0

You can see your running gpsd this way:

# pstree -paul | fgrep gpsd

> 'report' here is always None.

Which seems like gpsd is no running...

It is running. The Trimble unit emits strings on 192.168.142.1:5017. I was using systemd. However, let's take that out of the equation for now:

$ sudo gpsd tcp://192.168.142.1:5017
$ pstree -paul | grep gpsd
  |-gpsd,12951,nobody tcp://192.168.142.1:5017

$ sudo gpsd -D4 -N  tcp://192.168.142.1:5017
gpsd:INFO: launching (Version 3.19)
gpsd:INFO: listening on port gpsd
gpsd:PROG: NTP: shmat(0,0,0) succeeded, segment 0
gpsd:PROG: NTP: shmat(32769,0,0) succeeded, segment 1
gpsd:PROG: NTP: shmat(65538,0,0) succeeded, segment 2
gpsd:PROG: NTP: shmat(98307,0,0) succeeded, segment 3
gpsd:PROG: NTP: shmat(131076,0,0) succeeded, segment 4
gpsd:PROG: NTP: shmat(163845,0,0) succeeded, segment 5
gpsd:PROG: NTP: shmat(196614,0,0) succeeded, segment 6
gpsd:PROG: NTP: shmat(229383,0,0) succeeded, segment 7
gpsd:ERROR: shmget(0x47505344, 20816, 0666) for SHM export failed: Invalid argument <----- LOOK AT ME?
gpsd:INFO: stashing device tcp://192.168.142.1:5017 at slot 0
gpsd:INFO: running with effective group ID 20
gpsd:INFO: running with effective user ID 65534
gpsd:INFO: startup at 2019-08-12T21:11:36.000Z (1565644296)

Filed a bug. But I got it to work. The issue is you don't specify the host, port for your session (I thought that was to the trimble, but it is supposed to be to gpsd itself, sigh...).

Now the code works.

-aps