GPS fun on Droid 4 and leste

GPS fun on Droid 4 and leste

[Pavel Machek]

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Hi!

GPS on the droid 4 does not really work out of the box.

gpsd is not in default installation, maybe it should be?

What is worse, there's something broken with gpsd. Try:

/usr/sbin/gpsd -N -D 5 /dev/gnss0
gpspipe -w
# this seems to work, but do ^C and restart
gpspipe -w
...and it hangs.

xgps from gpsd-clients is broken: probably missing dependency
on gtk3 libraries.

user@devuan-droid4:/my/tui/lib$ xgps
Traceback (most recent call last):
  File "/usr/bin/xgps", line 30, in <module>
      gi.require_version('Gtk', '3.0')
 File "/usr/lib/python2.7/dist-packages/gi/__init__.py", line
 129, in require_version
 raise ValueError('Namespace %s not available' % namespace)
 ValueError: Namespace Gtk not available

Any ideas?

Best regards,
								Pavel
	    
-- 
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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Re: GPS fun on Droid 4 and leste

[Tony Lindgren]

* Pavel Machek <pavel@ucw.cz> [200712 09:28]:
> Hi!
> 
> GPS on the droid 4 does not really work out of the box.
> 
> gpsd is not in default installation, maybe it should be?
> 
> What is worse, there's something broken with gpsd. Try:
> 
> /usr/sbin/gpsd -N -D 5 /dev/gnss0
> gpspipe -w
> # this seems to work, but do ^C and restart
> gpspipe -w
> ...and it hangs.

Some earlier versions of gpsd I think had issues where you could
only connect one client. Or it was a bug in the kernel drivers..
Anyways, multiple gpspipe instances have been working for me for
a while now with gpsd-3.21.

I also found some issues in gnss-motmdm driver for closing the
gnss device, see:

https://github.com/tmlind/linux/commits/droid4-pending-v5.8

And I think the xtra2.bin data for agps is now working too :)

https://github.com/tmlind/droid4-agps/commits/master

At least I now get a fix in about two minutes after running the
update.sh, going outside, and starting cgps.

> xgps from gpsd-clients is broken: probably missing dependency
> on gtk3 libraries.
> 
> user@devuan-droid4:/my/tui/lib$ xgps
> Traceback (most recent call last):
>   File "/usr/bin/xgps", line 30, in <module>
>       gi.require_version('Gtk', '3.0')
>  File "/usr/lib/python2.7/dist-packages/gi/__init__.py", line
>  129, in require_version
>  raise ValueError('Namespace %s not available' % namespace)
>  ValueError: Namespace Gtk not available
> 
> Any ideas?

No idea about the xgps related stuff, I mostly use cgps for
testing with GPSD_UNITS=metric cgps.

Regards,

Tony

Re: GPS fun on Droid 4 and leste

[Pavel Machek]

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Hi!

> > GPS on the droid 4 does not really work out of the box.
> > 
> > gpsd is not in default installation, maybe it should be?
> > 
> > What is worse, there's something broken with gpsd. Try:
> > 
> > /usr/sbin/gpsd -N -D 5 /dev/gnss0
> > gpspipe -w
> > # this seems to work, but do ^C and restart
> > gpspipe -w
> > ...and it hangs.
> 
> Some earlier versions of gpsd I think had issues where you could
> only connect one client. Or it was a bug in the kernel drivers..
> Anyways, multiple gpspipe instances have been working for me for
> a while now with gpsd-3.21.
> 
> I also found some issues in gnss-motmdm driver for closing the
> gnss device, see:
> 
> https://github.com/tmlind/linux/commits/droid4-pending-v5.8
> 
> And I think the xtra2.bin data for agps is now working too :)
> 
> https://github.com/tmlind/droid4-agps/commits/master
> 
> At least I now get a fix in about two minutes after running the
> update.sh, going outside, and starting cgps.

Ok, let me play. But you should be getting fix in two minutes
_without_ AGPS support, if GPS is any good...

Best regards,
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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