Re: GPRS support for Ofono

[=?unknown-8bit?q?R=C3=A9mi?= Denis-Courmont <remi@remlab.net>]

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Le jeudi 3 septembre 2009 00:01:03 Marcel Holtmann, vous avez écrit :
> > It's probably difficult if the PC client is allowed to redefine GPRS
> > contexts, but otherwise oFono should at least be able to report the total
> > tx/rx for the context's it has defined. The BT DUN / USB bridge could
> > call into oFono and trigger a poll of all the stats to update them, e.g.
> > when a BT DUN connection is disconnected.
>
> how should it do this if oFono is not in the mix. If you are using
> Bluetooth DUN and point it to a virtual TTY, then you are out of look.
> If using USB CDC ACM then same applies.
>
> The real solution here is Bluetooth PAN and USB CDC Ether which do
> properly interact with the networking stack.

When we have patched all the Windows PC of the world, we can consider it.

In the mean time, AT+PPP emulation is required. Some modems do provide data 
counters including that. I've seen it as a requirement that I would rather 
have avoided but could not. It's ugly and arguably stupid, but required 
anyway. In fact, if Ofono won't do it, ConnMan will have to, which is probably 
by all means worse.

You can argue that it should be a driver-specific feature, but it has to be 
there. Hence, I would guess that more than one driver will support eventually, 
at which point it should probably be in the common API.

-- 
Rémi Denis-Courmont
http://www.remlab.net/