AT+ECM for connection management, QNCM rx_framing and le16 length prefixed IP tx_framing

Julio Araujo julio.araujo at
Mon Mar 24 17:26:38 PDT 2014


I'm not familiar with QMI, is it possible for you give me some more 
instruction in order to do the test that you wish?

As I told you I'm using this distro:
julio at mynote:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 12.04.4 LTS
Release:	12.04
Codename:	precise
julio at mynote:~$ uname -a
Linux mynote 3.8.0-36-generic #52~precise1-Ubuntu SMP Mon Feb 3 21:54:46 
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

and I checked for the modem-manager that I have installed and I found 
that it is not 1.x:
julio at mynote:~$ dpkg -l | grep modem
ii  modemmanager                    
    D-Bus service for managing modems

and unfortunately I have no idea in how to check if this QMI is a tools 
and if it is installed or if I need to install it in order to perform 
the test.

Sorry for to many questions.

Thanks in advance,


Em 24-03-2014 13:12, Bjørn Mork escreveu:
> Dan Williams <dcbw at> writes:
>> On Mon, 2014-03-24 at 16:27 +0100, Aleksander Morgado wrote:
>>> Would be good to check MM 1.x with QMI support as well, right?
>> Yes, we'd prefer to use QMI if we can, for the reliability, IP
>> configuration, speed, and status/SMS/location/etc benefits if nothing
>> else...
> Julio,
> if you want to test this modem with QMI, then I believe the following
> should be enough on the driver side (in a root shell):
>    echo 1-1.3:1.4  >/sys/bus/usb/drivers/option/unbind
>    modprobe qmi_wwan
>    echo 0b3c c00b >/sys/bus/usb/drivers/qmi_wwan/new_id
> Then you'll need to run some QMI userspace tool to actually test it,
> preferably ModemManager 1.x with QMI support because that will also
> verify that the firmware works with the command subset MM uses.
> Bjørn

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