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Date:   Thu, 24 Dec 2020 10:02:39 +0200
From:   Tony Lindgren <>
To:     Pavel Machek <>
Cc:     Johan Hovold <>,,
        Greg Kroah-Hartman <>,
        Rob Herring <>,
        Alan Cox <>,
        Lee Jones <>, Jiri Slaby <>,
        Merlijn Wajer <>,
        Peter Hurley <>,
        Sebastian Reichel <>,,,,
Subject: Re: [PATCHv6 0/4] n_gsm serdev support and protocol driver for
 droid4 modem


* Pavel Machek <> [201220 22:48]:
> Hi!
> > Sorry about the late reply on this.
> I'm afraid I'll need some more answers in near future, but for now:
> Tony, do you remember / can you figure out what gsmtty GPS is on? I
> never used it on that interface, and I can't seem to figure it out.
> My notes say:
> /dev/motmdm1 -- basic support, calls, on/off                                    
> /dev/motmdm3 -- send sms interface                                              
> /dev/motmdm9 -- receive sms interface                                           
> (and gsmtty numbering is same)

Yes I have not had a chance to look at these for several months now,
but have the latest set in droid4-pending-v5.10 branch in my github

The gnss device is at /dev/gsmtty6, see the current droid4-agps tool
to upload the almanac also on github. That's has turned out to be a
pretty good gsm serdev test too :)

> For now I converted gnss driver to use serdev interface, and n_gsm to
> provide it... Not yet finished but I believe I'm walking in the right
> direction.

Great, sounds good to me if you got things working with just serdev
calls :) I'll try to take a look at this stuff again after I have
the other pending droid4 issues out of the way like v5.12 charger
and keyboard stuff.



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