WDS Bind Mux Port?

[Daniele Palmas]

2017-01-11 11:15 GMT+01:00 Aleksander Morgado <aleksander at aleksander.es>:
> On Wed, Jan 11, 2017 at 11:03 AM, Daniele Palmas <dnlplm at gmail.com> wrote:
>>>> >> > From a quick check with a Huawei ME909u (MDM9215) running in QMI mode
>>>> >>
>>>> >> we are using a modified version of that driver with Telit LE922A6 to
>>>> >> support multiple data sessions that, for my understanding, are lacking
>>>> >> in qmi_wwan.
>>>> >>
>>>> >
>>>> > I am using Sierra MC7455, which have both /dev/cdc-wdm0 and
>>>> > /dev/cdc-wdm1,
>>>> > this allow me to have to have two simultaneous data connections with
>>>> > qmi_wwan (also MC7304 support this).
>>>> >
>>>>
>>>> But do those USB compositions have more than one rmnet device? In
>>>> LE922A6 we have only one device at the usb level.
>>>>
>>>> Daniele
>>>>
>>>
>>> You are correct.
>>>
>>> But aren't we able to have several data connections on same device with
>>> MBIM, I would remember that Björn did have some example of that, or is
>>> memory failing me? (of course this would be outside the QMI scope).
>>
>> Yes, exactly, MBIM is working fine in that way.
>>
>> But there are people that need the modem to be controlled through QMI
>> and have the requirement to setup multiple concurrent data session,
>> making this a showstopper for qmi_wwan.
>
> If this is indeed something to support, why don't we set it up as well
> with qmi_wwan/libqmi?
>

That would be great.

To be honest, it's not completely clear to me the effort at the
qmi_wwan driver level, but at first sight I don't think they are
trivial (not an expert, so I could be wrong).

As you pointed out, the gobinet driver is not really explicative (lot
of magic numbers) and this makes things harder.

Hope to take a deeper look at this sooner or later.

Daniele

> --
> Aleksander
> https://aleksander.es