Hi!

> * Tony Lindgren <tony@???> [200509 20:42]:
> > Below are the initial v5.7 kernel based branches at [0][1][2][3][4].
> >
> > We now use the generic serdev-ngsm driver with the standard /dev/gsmtty*
> > devices spun up by n_gsm instead of the custom /dev/motmdm* devices like
> > we did earlier. This means all the commands must prefix the Motorola
> > custom packet ID to the commands like:
> >
> > printf "U1234AT+CFUN?\r" > /dev/gsmtty1
>
> I got the minimal ofono updates done for serdev-ngsm and pushed out the
> changes into a new branc motmdm-serdev-ngsm on github at [5] below.
>
> I ended up adding few more gatchat patches. It's still unsure if we
> end up using any of those, that depends on the outcome of Pavel's work.
> Anyways, the current gatchat related commits are now:

I believe I got the basics right. Separate motchat is the way to go.

1) protocol is packet-based, not character-based.

2) in AT you got

> AT+TELL_ME_SOMETHING
< IT_IS_42
< OK

while in motmdm it is:

> U0005AT+TELL_ME
< U0005OK:IT_IS_42

I believe that's why commands/responses are getting delayed in Tony's
case... AFAICT lot of complexity in atchat is collecting the multiple
lines, including handling stuff like

IT_IS="Arbitrary
text including
OK
here"
OK

We don't need or want any of that...

Best regards,
                                    Pavel

--
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