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Date:      Mon, 16 Dec 2019 23:11:02 +0000
From:      bugzilla-noreply@freebsd.org
To:        usb@FreeBSD.org
Subject:   [Bug 234578] Support for Sierra Wireless EM7455 modem
Message-ID:  <bug-234578-19105-iNq4KRPrFF@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-234578-19105@https.bugs.freebsd.org/bugzilla/>
References:  <bug-234578-19105@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234578

dean@fragfest.com.au changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dean@fragfest.com.au

--- Comment #4 from dean@fragfest.com.au ---
This python script automates the engineering challenge response via AT comm=
ands
for many S.W. devices

https://github.com/bkerler/SierraWirelessGen

Having entered engineering mode, you can use cu or similar to connect to the
usb serial of the device and issue these commands

AT!PCFCCAUTH=3D0
AT!RESET


The S.W. device will reset and the FCC low power mode will remain disabled
forever after.

Observe with:

at!gstatus?


Further, this at command will list the available usb modes for the device

AT!UDUSBCOMP?

As far as i can tell the QMI, RMNET and MBIM protocols arent supported in
freebsd so ppp via the USB serial port is the only option. Which is availab=
le
in the 6,7 and 8 modes.

AT!UDUSBCOMP=3D6
AT!RESET

The above can be manipulated in QMI only mode with the script
https://git.mork.no/wwan.git/plain/scripts/swi_setusbcomp.pl - which you wi=
ll
need to run on linux. But once AT commands are exposed via usb serial devic=
es
you can plug on to BSD.


The above is taken from my personal notes on S.W. devices. There is a lot of
arcane magic involved, as you can flash vendor badged devices to generic SW
firmware, change their usb VID and PID so that freebsd recognizes it etc. B=
ut
once you have a generic firmware presenting as a generic USB device - youre=
 in
business with the above.

I would be delighted to be proven wrong that QMI, RMNET and MBIM arent
supported.

--=20
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