Re: open SHM data only after cgps start

[Gary E. Miller]

Yo Hans!

On Fri, 5 Feb 2021 09:15:23 +0100
Hans Kurscheidt <lve0200@gmail.com> wrote:

> So I managed installing V 3-22 from Master, build and check went OK.
> 
> Its running when started from command level. I can use cgps and I'm 
> getting fixes etc.

Good.

> hk@orangepizero:/usr/local/sbin$ ll
> total 492
> -rwxr-xr-x 1 root staff 473152 Feb  5 08:24 gpsd
> -rwxr-xr-x 1 root staff   9856 Feb  5 08:24 gpsdctl
> -rwxr-xr-x 1 root staff  14065 Aug 25  2016 rpimonitor-helper.sh

Good.

> $gpsd --help gives me among others
> 
> ...
> # Socket export enabled.
> # Shared memory export enabled.
> # DBUS export enabled
> # Control socket for hotplug notifications enabled
> # Magic Hat enabled
> # systemd socket activation enabled

Good.

> hk@orangepizero:~$ gpsd -V
> gpsd: 3.22.1~dev (revision 3.22.1~dev-2021-02-04T22:49:06)

Good.

> BUT
> 
> How can I start the service at boot?

You seem intent on using systemd(umpkopf).  I don't use it, do
not touch it.  Someone else will have to help with that.

> sudo systemctl start gpsd

Friends don't let freinds sudo.

> [sudo] password for hk:
> Failed to start gpsd.service: Unit gpsd.service not found.

gpsd provides a sample gpsd.service, not installed by default.
Maybe that will help, but as I keep saying, systemd(oodle) is
not my thing.

> And I guess I must somewhere set my device as /dev/ttyACM0?!

On a non-systemd(roopy) system the udev rules can auto-detect that.
But that does not help you.

Maybe some systemd(rowning) user can help.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        gem@rellim.com  Tel:+1 541 382 8588

            Veritas liberabit vos. -- Quid est veritas?
    "If you can't measure it, you can't improve it." - Lord Kelvin

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