MC7710 enable GPS

[Dan Williams]

On Tue, 2013-12-31 at 15:22 -0800, Alex Bradley wrote:
> Thanks Aleksander.
> 
> I found the last step I was missing to get NMEA output to start working
> on the MC7750.
> 
> stty raw -F /dev/ttyUSB1; echo \$GPS_START >/dev/ttyUSB1

Yeah, that's standard Gobi 2k+ GPS actually, works for any Gobi-type
device from 2009 forward.  Use $GPS_STOP (I think) to stop it.

Dan

> 
> For what it's worth, I found this in the notes here:
> http://linux-thinkpad.10952.n7.nabble.com/Replacing-the-Ericsson-3G-modem-in-an-X301-with-a-Sierra-Wireless-LTE-modem-td19733.html
> 
> 
> Thanks again,
> Alex
> 
> 
> On 12/31/2013 12:43 AM, Aleksander Morgado wrote:
> > Hey Alex,
> >
> > On Tue, Dec 31, 2013 at 2:04 AM, Alex Bradley <alex at cni.net> wrote:
> >> Hey all.  Similar topic, but with an MC7750 card.
> >>
> >>
> >> On 11/25/2013 09:13 AM, Dan Williams wrote:
> >>> On Mon, 2013-11-25 at 18:44 +0400, Danilo Magat wrote:
> >>>> Hi guys,
> >>>>
> >>>> i am not sure if this the right place to post and ask a question with
> >>>> regards to the subject.
> >>>> i am trying to look for a solution on how can i enable the GPS on my sierra
> >>>> MC7710.
> >>>> my OS is OPENWRT ive successfully configure the WWAN to connect on the
> >>>> internet using
> >>> If your 7710 is QMI-enabled, I'd use ModemManager or libqmi.
> >>>
> >>> If your 7710 is using DirectIP firmware, then you have to follow the
> >>> directions in the "GPS Enabling and Disabling" section here:
> >>>
> >>> http://whirlpool.net.au/wiki/sierra_advanced
> >>>
> >>> Dan
> >> I'm running libqmi 1.8 with an MC7750 on OpenWRT.    Trying to get GPS
> >> NMEA output from the MC7750.  I'm not sure how to use libqmi/qmicli to
> >> talk to the GPS, so I've been using AT commands to enable GPS, and
> >> confirm that NMEA output is enabled.  The GPS looks like it's working,
> >> but the problem is I'm not able to see any NMEA output on what should be
> >> the NMEA port,  /dev/ttyUSB1.
> >>
> >> Any pointers on managing GPS with libqmi?
> >>
> > When using QMI you can use the 'PDS' service to both enable the GPS
> > stack and retrieve the NMEA traces directly from within QMI messaes.
> > The only issue is that the corresponding qmicli actions are not
> > implemented yet... :) When I wrote the PDS support for libqmi I
> > directly integrated it within ModemManager, so no qmicli work was done
> > at that point.
> >
> > Still, you should be able to enable GPS support using AT commands, and
> > also get the NMEA traces in a serial port. I don't think that using
> > libqmi for connection management would prevent you from using AT to
> > enable/disable GPS.
> >
> 
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