linux-kernel - Re: [PATCH v2] USB: serial: qcserial: Support for SDX55 based Sierra Wireless 5G modules

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Date:   Thu, 24 Jun 2021 13:15:07 +0200
From:   Bjørn Mork <bjorn@...k.no>
To:     Johan Hovold <johan@...nel.org>
Cc:     Stefan Brüns <stefan.bruens@...h-aachen.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Daniele Palmas <dnlplm@...il.com>
Subject: Re: [PATCH v2] USB: serial: qcserial: Support for SDX55 based
 Sierra Wireless 5G modules

Johan Hovold <johan@...nel.org> writes:

> Could you please also post the output of usb-devices (or lsusb -v) for
> this device in MBIM mode?

Yes, this would be nice to have.

I suspect that this device is like other SDX55 devices we've seen, using
class/subclass/function to map the vendor specific functions
too. Dropping static interface numbers.  If correct, then the patch is
bogus and the interface numbers might change based on firmware version
and configuration.

Bjørn