Re: [gpsd-users] Shared memory 'flags' set?

[Michael Lum]

Hi Gary,

I've attached a gzipped capture. 

>From the logging I looked at it seems
maybe the flags are being "lost" somehow during the shared memory
copy betweem shm_update() and the client getting it.
(or overwritten because the Ublox messages are coming in so fast)

Thanks

-----Original Message-----
From: gpsd-users [mailto:address@hidden On Behalf Of Gary E. Miller
Sent: June-12-18 12:18 PM
To: address@hidden
Subject: Re: [gpsd-users] Shared memory 'flags' set?

Yo Michael!

On Mon, 11 Jun 2018 15:59:29 -0700
Michael Lum <address@hidden> wrote:

> However, when I try to use the shared memory interface only a few of 
> the flag fields are set.

That does seem odd.  Most clients do not bother to check for the flags because 
each GPS driver sets the flags differently.

There are now way more individual data items that may or may not be set.
So most clients just look at each data itme to see if it is valid.

Can you send a raw capture file of your GPS output data?  Somehing like 
"gpspipe -w > out.raw".

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

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

out.raw.gz
Description: out.raw.gz