Sierra Wireless <-> libqmi / QMI obsolete?

[Aleksander Morgado]

> If you look at
> https://source.sierrawireless.com/resources/airprime/software/mbpl/mbpl-software-latest/
> you'll find that their currently supported USB drivers includes
> qmi_wwan.
>
> So it looks like QMI still is supported, using qmi_wwan and libqmi.
>
> The Qualcomm Gobi drivers and associated SDK are unsupported.
>

That is great news.

> > My aim would be to support multiple modules with same protocol, but
> > this task seems to be not so easy...
>

ModemManager gives you that same thing, a single protocol/API to
support multiple modules (regardless of the underlying protocol
between host and modem).

> Predicting the future is difficult.  I tried to write a simple driver
> for a Huawei modem back in 2011... Never imagined that Sierra Wireless
> would provide it with their 5G modules in 2023.
>

Hah :)

> MBIM using MHI/PCIe as transport looks like the most future proof
> solution at the moment, given that you can use QMI over MBIM.  But don't
> worry if you're stuck with a USB host interface.  Doesn't look like it
> will disappear as fast as we (or maybe just I?) thought a couple of
> years ago.
>

Yes, I agree with that.

-- 
Aleksander