Sierra Wireless EM7455

Aleksander Morgado aleksander at
Thu Jun 9 19:20:01 UTC 2016

On Thu, Jun 9, 2016 at 11:53 AM, Bjørn Mork <bjorn at> wrote:
>> What do you guys think, should we unconditionally try to send the FCC
>> auth via QMI over MBIM in the generic MBIM implementation? E.g. during
>> the power-up sequence.
> My memory lasts exactly this far: .
> Did we test the behaviour of non-Sierra modems supporting the QMI MBIM
> service?  If they quickly respond with an error on the unsupported QMI
> request, then I guess unconditional is fine.
> How difficult will it be to restrict this to Sierra modems with QMI
> service support?  Or was that the set you meant we should
> unconditionally try the command on?  If so, then I say "go!".

I tried the QMI MBIM service in my Ericsson MBIM modem and it just
kindly replied that it didn't know anything about that service, which
is what I would expect from every other vendor.

When I said unconditionally I meant for every MBIM modem out there,
not just Sierra based ones.


More information about the ModemManager-devel mailing list