Re: ZTE MF192 3G Modems

[Aleksander Morgado <aleksander lanedo com>]

>>>>>> On Mon, Jul 9, 2012 at 9:25 PM, Brian Gitonga Marete <marete toshnix com> wrote:
>>>>>>> Hello all,
>>>>>>>
>>>>>>> I have the same (or very similar) ZTE MF192 modem referred to by
>>>>>>> Dmitry Morozhnikov here:
>>>>>>> https://mail.gnome.org/archives/networkmanager-list/2012-February/msg00014.html
>>>>>>> My modem is supplied by Orange Kenya, for use in their Orange Internet
>>>>>>> 3G service.
>>>>>>>
>>>>>>> In summary, it also does NOT work for me with MM/NM out of the box.
>>>>>>> What is more, the patch suggested by Dmitry in the mail thread
>>>>>>> referenced above suffices at least establish an Internet connection
>>>>>>> that is fully usable.
>>>>>>>
>>>>>>> Wvdial works well with this MF192 device, and attached is my wvdial
>>>>>>> config as wvdial.conf. I have also attached wvdial.log, so that you
>>>>>>> can see what wvdial uses to successfully drive it.
>>>>>>>
>>>>>>> I was also able to capture a USB trace (using Wireshark) of windows
>>>>>>> driving the modem from within a Virtualbox VM. I think this will allow
>>>>>>> you to develop full support for this modem. The capture trace reflects
>>>>>>> all traffic to/from the modem from hotplug to a short time after I
>>>>>>> successfully "connect" from withing the Windows program. Please see
>>>>>>> the attachment zte-mf192.cap.xz for this captured trace. View it from
>>>>>>> Wireshark.
>>>>>>>
>>>>>>> Also attached are the files modem-manager.log and network-manager.log,
>>>>>>> showing the log of a failed connection attempt (before applying the
>>>>>>> patch referenced above). Please also see lsusb.txt for USB ID details
>>>>>>> about my modem.
>>>>>>>
>>>>>>> One last thing: I can confirm that, as in Dmitry case, the AT commands
>>>>>>> ZPAS? and ZSNT=1,0,0 do not seem to work on this modem. (And, in fact,
>>>>>>> I don't see them in the Windows trace (zte-mf192.cap.xz) which
>>>>>>> contains many AT commands to the modem.
>>>>>>>
>>>>>>> If I had a better idea about the structure/architecture of MM, I might
>>>>>>> be able to help better, with actual code :)
>>>>>>>
>>>>>>> Please let me know if you need any further information.
>>>>>>>
>>>>>>> Thanks!
>>>>>
>>>>> Hello, Brian!
>>>>>
>>>>> Recently, I wrote to this list about ZTE MF192. I got it to work with
>>>>> dhclient, see my previous messages:
>>>>> https://mail.gnome.org/archives/networkmanager-list/2012-June/msg00003.html and https://mail.gnome.org/archives/networkmanager-list/2012-April/msg00043.html
>>>>>
>>>>> Please, can you try my patches, and confirm them to work, or not.
>>>>
>>>> Hello Alexander,
>>>>
>>>> Thanks for your email!
>>>>
>>>> Unfortunately, the MF192 I have does not present with a
>>>> pseudo-ethernet interface. Just the ttyACM* interfaces.  Dmitry
>>>> Morozhnikov patch works for me. Do you have a suggestion that can help
>>>> me expose a pseudo-ethernet interface if the device has one? Also,
>>>> note that my device has the ID: 19d2:1519, and the latest
>>>> usb_modeswitch data packages switches it to a device with ID:
>>>> 19d2:1519.
>>>
>>> Hello Alexander,
>>>
>>> Sorry, I meant to say that my MF192 has ID 19d2:1517 initially and is
>>> switched to a device with ID 19d2:1519 by usb_modeswitch.
>>>
>>> Sorry about the confusion!
>>
>>
>> Hello all,
>>
>> With regard to the above, is Dmitry's patch acceptable, or does it
>> need some work (I am happy to do such work).
>>
> 
> Dmitry's patch forces this specific modem to get connected with a
> generic ATD call and PPP. But the modem supports Icera commands, and it
> should better get connected using the built-in wwan interface. The
> problem seems to be that the kernel doesn't export any wwan interface
> here, so there's some work to be done likely there. Once the kernel
> exports the wwan interface, I guess we should be able to connect with
> the Icera subset of commands nicely.
> 
> Dan, in the mean time, why don't we just check in _is_icera() if we have
> a net port grabbed and if we don't, just warn and go on with the
> Icera-less implementation?
> 

Gah, I should have checked the repo before. This should already be
handled in the following commit:

http://cgit.freedesktop.org/ModemManager/ModemManager/commit/?h=MM_05&id=7dd42f1982720dd666bc4d7a4920f033bcf64662

Brian: can you try to run the latest code from the MM_05 branch to see
if it works for you?

-- 
Aleksander