[PATCH] qmi-firmware-update: support USB3->USB2 mode changes during upgrade

Aleksander Morgado aleksander at aleksander.es
Thu Jan 25 20:59:51 UTC 2018

On Thu, Jan 25, 2018 at 9:19 PM, Dan Williams <dcbw at redhat.com> wrote:

> On Thu, 2018-01-25 at 18:26 +0000, Paul Gildea wrote:
> > Yep, was fairly clear from your patch, nice! I guess that depends on
> > prevalence of congruent S/N's (at least for modems where that will be
> > needed, unlike your EM7565 which upgrades in SuperSpeed).
> > My ports seem predictable for manual setting, and if not at least the
> > user
> > can solve it with trial/error to get around the problem.
> I'd be hesitant to use the serial number; this is often the same for
> different devices of the same model.  So if you have two of the same
> modem on your system, it could become confused.
We could always halt the automatic upgrade process if we find some other
modem with the same s/n around. Or worst case, we could even make
qmi-firmware-update processes synchronize so that they are never run at the
same time for the same s/n. Just thinking out loud here...

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