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Re: [gpsd-dev] Adding additional parameters to gps_data_t structure

From: Sanjeev Gupta
Subject: Re: [gpsd-dev] Adding additional parameters to gps_data_t structure
Date: Fri, 5 Jul 2019 22:50:47 +0800

Sharmila, I understand that at this stage you may not be able to upgrade components to current versions.  You are asking for help in extending the data model 3.16 had, and it is reasonable to ask the gpsd developers.

On the other hand, although Gary is trying, no one on this list is running a copy of 3.16.  So we cannot really see the code you are modifying, and we would not want to run that on our test setups.  Any changes you make to 3.16 would be of no use to our current users, anyway.

So any help is likely to be of the form: "try this, my memory says it might work, but ...".

I do not think anyone on this list is familiar with yocto, to make things worse.

The only advice I can give is to go back to Gary's email, and work with his suggestions.  That may work.  You will, of course, have to carry the support burden of porting the patch when yocto updates.

What I have done for OpenWRT updates, is to look at the gpsd build recipe (and build-specific patches), and apply them to a newer version (in this case 3.19).  An example of the patches is at:
Apply these to a copy of 3.19 in your build tree.

If you can do this, we immediately can see what you are running, and may be able to help.

Sanjeev Gupta
+65 98551208

On Fri, Jul 5, 2019 at 6:03 PM Sharmila <address@hidden> wrote:
Hi Sanjeev,

We are using yocto rocko build system . V3.16 is the default version
which will get selected. As other formal functions are working file, we
continued using 3.16. Is there any problem in adding velN, velE and
height parameters in fix_t structure. After adding these parameters
application is receiving gps_data structure filled with invalid data.
Please provide some input.

Thanks & Regards,


On Friday 05 July 2019 03:05 PM, Sanjeev Gupta wrote:
> Sharmila, can you please switch to a current version of gpsd?  3.16 is
> over three years old, and the data structure you are trying to modify
> may no longer exist in a recognisable form.

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