Huawei E1732 qmilib supported?

Bjørn Mork bjorn at mork.no
Mon Sep 2 00:27:54 PDT 2013


david preetham <preetham.david at gmail.com> writes:

> Hi Bjorn Thanks for the reply.
>
> Can i know which are equivalent drivers can load for ndis interface in
> huawei E3121 device?
> The network interface is qmi + ncm based.

It is?  Haven't heard about that combination before.  Do you have a
"lsusb -v" ouput for that device.  Huawei are nice enough to use the
subclass and protocol fields to separate different function types.  I
wonder what this device says..

> will cdc_ncm for data plane and cdc_wdm for control interface will work?
> Which driver handling qmi and ncm protocol.

This is getting a bit ugly.  But Enrico Mioso has created a NCM driver
similar to qmi_wwan, exposing the embedded management channel as a
/dev/cdc-wdmX device: http://patchwork.ozlabs.org/patch/269325/

The driver was made for modems using AT commands on the management
channel, but it should work equally well with QMI.  I guess it will be
up to ModemManager to guess the protocol based on either probing or
device ID...  The driver won't know.

But this driver is not yet merged.  It is work in progress.  You'll need
the two other patches in the series if you want to test it now:

http://patchwork.ozlabs.org/patch/269327/
http://patchwork.ozlabs.org/patch/269326/


Bjørn


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