Question about dual qmi/mbim modems

[Dan Williams]

On Thu, 2020-06-04 at 17:11 -0500, Alex Ballmer wrote:
> On 2020-06-04 02:08, Aleksander Morgado wrote:
> > Hey,
> > 
> > On Wed, Jun 3, 2020 at 9:51 PM Alex Ballmer <alexb at meshplusplus.com
> > > wrote:
> > > I have noticed that Sierra Wireless MC4755 modems can operate in
> > > both
> > > QMI and MBIM modes. Modemmanager seem to try to use the modem as-
> > > is in
> > > whatever mode it is currently operating in.
> > > 
> > > However, some features are only available in QMI mode. In my
> > > experience
> > > I could not reset a modem in MBIM mode. It resulted in
> > > 
> > > mmcli -m 0 -r
> > > error: couldn't reset the modem: 'GDBus.Error:org.freedesktop.
> > > ModemManager1.Error.Core.Unsupported: Cannot reset the modem:
> > > operation
> > > not supported'
> > > 
> > 
> > That changes in ModemManager 1.14, the reset operation is
> > implemented
> > in MBIM modems and will use either the Intel reset operation or the
> > QMI based one internally, whatever fits the device.
> > 
> 
> Is there a specific commit that I could look at where the MBIM reset 
> support is added?

9dc26cc44d79f18789a510e050fc899b680587ec
6026c99f2ec99e2721356ee645472d8403676bf6

Dan

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