Re: [gpsd-users] gpsd:ERROR: device open failed: Permission denied - retrying read-only

[Gary E. Miller]

Yo Charles!

On Tue, 6 Feb 2018 21:56:25 +0100
"Charles Muggen" <address@hidden> wrote:

> I have a GPS HAT from Adafruit connected to the Raspberry Pi running
> Raspbian Jessie. The plan is to get an accurate clock from the GPS
> and 1 PPS combination and operate with no internet connection.

Iused to have that HAT.  Mine stopped working last month.

> I have gpsd and chrony installed.
> ntpd is disabled.

Try NTPsec.

> Feb  5 23:20:47 raspberrypi gpsd[474]: gpsd:ERROR: device open
> failed: Permission denied - retrying read-only Feb  5 23:20:47

You are running gpsd as root?  What is the command line you are
using to start gpsd?  What are the perms on your /dev/ttyAMA0?

> if I stop and disable the gpsd socket as per Adafruit instructions,
> somehow it recovers and tries to connect to chrony, but on the second
> start up it's connecting to PPS1, not PPS0. the Adafruit manual says
> to do the following:

Why are you using a socket at all??  Don't do that!

> sudo systemctl stop gpsd.socket
> sudo systemctl disable gpsd.socket

Gack, sudo AND systemctl?  Don't do that!

> the contents of /etc/default/gpsd are as follows:

That file is NOT part of gpsd project.  You'd have to ask your
distro about that.

> # Other options you want to pass to gpsd
> GPSD_OPTIONS="-n /dev/ttyAMA0 /dev/pps0"

Suing a socket AND puytting the device in the gpsd options?  Don't do
that!

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

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