Re: [PATCHv8 0/6] n_gsm serdev support and GNSS driver for droid4

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* Pavel Machek <pavel@xxxxxxx> [200513 19:10]:
> Hi!
> 
> > Here's the updated set of these patches fixed up for Johan's and
> > Pavel's earlier comments.
> > 
> > This series does the following:
> > 
> > 1. Adds functions to n_gsm.c for serdev-ngsm.c driver to use
> > 
> > 2. Adds a generic serdev-ngsm.c driver that brings up the TS 27.010
> >    TTY ports configured in devicetree with help of n_gsm.c
> > 
> > 3. Allows the use of standard Linux device drivers for dedicated
> >    TS 27.010 channels for devices like GNSS and ALSA found on some
> >    modems for example
> 
> > 4. Adds a gnss-motmdm consumer driver for the GNSS device found on
> >    the Motorola Mapphone MDM6600 modem on devices like droid4
> 
> It does one thing ... it turns Droid 4 into useful phone! 

Right, a minor detail I forgot :)

> Thanks a lot. I believe these are same patches as in
> droid4-pending-v5.7 branch, so whole series is
> 
> Tested-by: Pavel Machek <pavel@xxxxxx>
> 
> Getting this into 5.8 would be nice :-).
> 
> > Now without the chardev support, the /dev/gsmtty* using apps need
> > to use "U1234AT+CFUN?" format for the packets. The advantage is
> > less kernel code, and we keep the existing /dev/gsmtty* interface.
> > 
> > If we still really need the custom chardev support, that can now
> > be added as needed with the channel specific consumer driver(s),
> > but looks like this won't be needed based on Pavel's ofono work.
> 
> These work for me, and I have patched ofono with basic
> functionality. It is no longer possible to use minicom for debugging,
> but printf can be used instead, so that's not much of a problem.
> 
> I have adjusted ofono code, and moved away from normal AT support
> code. More API changes would not be welcome :-).

There is no need for a new API or API changes as we now use the
existing n_gsm tty interface for /dev/gsmtty* devices that have
been around for years.

Regards,

Tony




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