AW: Set allowed mode to 2G, 3G, 4G not working

Tue Nov 19 13:38:24 UTC 2019

On Tue, 19 Nov 2019, Daniele Palmas wrote:

> Date: Tue, 19 Nov 2019 14:25:52
> From: Daniele Palmas <dnlplm at gmail.com>
> To: Enrico Mioso <mrkiko.rs at gmail.com>
> Cc: Stelling2 Carsten <Carsten.Stelling2 at goerlitz.com>,
>     "modemmanager-devel at lists.freedesktop.org"
>     <modemmanager-devel at lists.freedesktop.org>
> Subject: Re: AW: Set allowed mode to 2G, 3G, 4G not working
> 
> Hi Enrico,
>
> Il giorno mar 19 nov 2019 alle ore 10:52 Enrico Mioso
> <mrkiko.rs at gmail.com> ha scritto:
>>
>> I am experiencing similar issues when trying to set allowed mode to all modes, and preferred to "none in particular" :) .
>> Simply doesn't work - even with a success message then settings remain so that preferred mode looks to be 4G. Would like very much to solve this.
>>
>
> are you using LE910-EU1 as well?

Hi Daniele!
Sorry, hasn't been as specific as needed, that's bad. Sorry.
No, i experienced this with a Quectel EC25 modem... Didn't solve this even after factory reset, but at this point I don't know what's going on. Thank you very much.
Enrico
>
> Regards,
> Daniele
>
>> Enrico
>>
>>
>>
>> On Tue, 19 Nov 2019, Stelling2 Carsten wrote:
>>
>>> Date: Tue, 19 Nov 2019 10:10:44
>>> From: Stelling2 Carsten <Carsten.Stelling2 at goerlitz.com>
>>> To: "modemmanager-devel at lists.freedesktop.org"
>>>     <modemmanager-devel at lists.freedesktop.org>,
>>>     "Daniele Palmas (dnlplm at gmail.com)" <dnlplm at gmail.com>
>>> Subject: AW: Set allowed mode to 2G, 3G, 4G not working
>>>
>>> Hi,
>>>
>>> I've just updated MM from 1.10.0 to 1.12.0 with the result, that my application fails when setting the mode ('2G|4G') for Telit LE910-EU1. It also fails when using mmcli.
>>> My version 1.10.0 contains Daniele's patches mentioned here https://lists.freedesktop.org/archives/modemmanager-devel/2019-February/007044.html and in following messages.
>>>
>>> I assume, that Daniele's patches didn't go mainline.
>>>
>>> Daniele, can you send a merge request, containing your patches for the master branch?
>>> I'll test them as soon as possible with Telit LE910-EU1 and give you feedback, such that this feature can be released.
>>>
>>> Thank you for your help.
>>>
>>> Carsten
>>>
>>> -----Ursprüngliche Nachricht-----
>>> Von: ModemManager-devel [mailto:modemmanager-devel-bounces at lists.freedesktop.org] Im Auftrag von Stelling2 Carsten
>>> Gesendet: Mittwoch, 27. Februar 2019 10:16
>>> An: Daniele Palmas
>>> Cc: modemmanager-devel at lists.freedesktop.org; Reinhard Speyerer; Aleksander Morgado
>>> Betreff: AW: Set allowed mode to 2G, 3G, 4G not working
>>>
>>> Hi Daniele,
>>>
>>> Thank you. Yes, I'll give it a try tomorrow.
>>>
>>> Following patches from your commits should be applied to MM 1.10.0
>>>
>>> 4089726c1fbdc90ecec8737f9ea287784708ca7f
>>> 90cb911437538d5b6bd681aa1d7e1be2e1700227
>>>
>>> Is this right?
>>>
>>> Best regards,
>>>
>>> Carsten
>>>
>>> -----Ursprüngliche Nachricht-----
>>> Von: Daniele Palmas [mailto:dnlplm at gmail.com]
>>> Gesendet: Dienstag, 26. Februar 2019 14:59
>>> An: Stelling2 Carsten
>>> Cc: Aleksander Morgado; Reinhard Speyerer; modemmanager-devel at lists.freedesktop.org
>>> Betreff: Re: Set allowed mode to 2G, 3G, 4G not working
>>>
>>> Hi Carsten,
>>>
>>> Il giorno ven 22 feb 2019 alle ore 12:12 Stelling2 Carsten
>>> <Carsten.Stelling2 at goerlitz.com> ha scritto:
>>>>
>>>> Hi,
>>>>
>>>> I must correct me, modem type is LE910-EU1 as Reinhard assumed. Sorry for this confusion.
>>>> As a workaround for testing, we send AT+WS46 commands via D-Bus, but that seems possible only, if MM runs in debug mode.
>>>> If we need this feature for production in the future, I understand that we can add it to the Telit plugin.
>>>
>>> at the following link
>>>
>>> https://gitlab.freedesktop.org/dnlplm/ModemManager.git
>>>
>>> you can find a fork with two additional commits that should implement
>>> what needed.
>>>
>>> Before sending to Aleksander a merge request would you like to give it a try?
>>>
>>> Regards,
>>> Daniele
>>>
>>>> I'd be very happy, if you can support me during implementation at a later point in time.
>>>>
>>>> Thank you Aleksander and Reinhard for your support.
>>>>
>>>> Carsten
>>>>
>>>> -----Ursprüngliche Nachricht-----
>>>> Von: Aleksander Morgado [mailto:aleksander at aleksander.es]
>>>> Gesendet: Freitag, 22. Februar 2019 09:59
>>>> An: Reinhard Speyerer
>>>> Cc: modemmanager-devel at lists.freedesktop.org; Stelling2 Carsten
>>>> Betreff: Re: Set allowed mode to 2G, 3G, 4G not working
>>>>
>>>>>>> Within the debug output I found the following line
>>>>>>> ModemManager[623]: <debug> [1550762368.321591] MBIM-powered Telit modem found...
>>>>>>> which points out, that calling
>>>>>>> if (mm_port_probe_list_is_xmm (probes))
>>>>>>> did not find the XMM support.
>>>>>>
>>>>>> It didn't find it, because the XACT=? check failed:
>>>>>> ModemManager[623]: <debug> [1550762359.960165] (ttyACM0): --> 'AT+XACT=?<CR>'
>>>>>> ModemManager[623]: <debug> [1550762360.882668] (ttyACM0): <--
>>>>>> '<CR><LF>ERROR<CR><LF>'
>>>>>>
>>>>>> So I assume the XMM support that we have in the xmm plugin isn't ready
>>>>>> to handle this specific device.
>>>>>>
>>>>>> The inability to switch modes in this device is not a bug, it's just
>>>>>> not implemented I'm afraid.
>>>>>
>>>>> Hi Aleksander,
>>>>>
>>>>> the Telit-preferred way seems to be to handle this with AT+WS46.
>>>>> I haven't checked the code in detail but based on the AT+WS46
>>>>> references in the Telit plugin I would have expected for
>>>>> ModemManager to already use it.
>>>>>
>>>>
>>>> If the modem is managed with MBIM, the generic MBIM implementation is
>>>> used for the Telit modem, so no AT+WS46 based mode switching will be
>>>> done. For this kind of cases, where we have MBIM for generic control
>>>> plus AT for other features, we would need to have a
>>>> "MMBroadbandModemMbimTelit" implementation that inherits from
>>>> MMBroadbandModemMbim but then shares features with the Telit-specific
>>>> AT modem object. So, it's totally possible to do this, but needs to be
>>>> done.
>>>>
>>>> --
>>>> Aleksander
>>>> https://aleksander.es
>>>>
>>>>
>>>> _______________________________________________
>>>> ModemManager-devel mailing list
>>>> ModemManager-devel at lists.freedesktop.org
>>>> https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
>>>
>>>
>>> _______________________________________________
>>> ModemManager-devel mailing list
>>> ModemManager-devel at lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
>>> _______________________________________________
>>> ModemManager-devel mailing list
>>> ModemManager-devel at lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
>