[OpenWrt-Devel] [PATCH 1/2] wwan: Add support for CDC (Huawei 'HiLink') Modems

[John Crispin]

On 01/03/2016 12:14, Bruno Randolf wrote:
> On 03/01/2016 08:43 AM, John Crispin wrote:
>>
>>
>> On 26/02/2016 08:50, John Crispin wrote:
>>>
>>>
>>> On 25/02/2016 08:23, John Crispin wrote:
>>>>
>>>>
>>>> On 24/02/2016 09:08, Bruno Randolf wrote:
>>>>> On 02/24/2016 06:11 AM, Matti Laakso wrote:
>>>>>>> The reason is that I want different types of Modems to work with the
>>>>>>> same interface configuration, using 'wwan'. E.g. it's configured like
>>>>>>> this (/etc/config/network):
>>>>>>>
>>>>>>> config interface 'umts'
>>>>>>> option proto wwan
>>>>>>> option apn internet.eplus.de
>>>>>>> option metric 4
>>>>>>>
>>>>>>> And it will work with PPP, QMI, MBIM, HiLink or whatever modem supported
>>>>>>> by "wwan" (which are hopefully more and more)... Doesn't that make
>>>>>>> sense? It would help the user who doesn't want to guess wether QMI works
>>>>>>> better than PPP for a specific modem and which serial port to use, etc...
>>>>>>>
>>>>>>
>>>>>> That's a good goal, but I think it's confusing for the user when apn and
>>>>>> pin options don't work with HiLink modems but do work with all other
>>>>>> modems handled by wwan.
>>>>>
>>>>> Well, you can see it the other way round: they are not needed for HiLink
>>>>> modems and it will "just work"... :)
>>>>>
>>>>> bruno
>>>>>
>>>>
>>>> i have to say i agree most with bruno but i need to think about this a
>>>> bit and i'll test it with the 2 hilinks i have here. i believe that
>>>> having the wwan proto handle most of the options is desirable as it will
>>>> not only unify the code path but also the config path which at the end
>>>> will increase usability.
>>>>
>>>> 	John
>>>>
>>>
>>> Hi,
>>>
>>> this only works if the sim card has no pin set. correct ? i tried it and
>>> without logging into the webui and adding my pin/apn/ ... there it wont
>>> go online
>>>
>>> 	John
>>
>> i have spent ages thinking about this. the main problem is that the unit
>> wont go online unless we previously set the apn/pin, ... in the webui.
>> although having a unified wwan proto is great and we should have hilink
>> support in it, i fear that this will be rather ambiguous to users as
>> they set the pin in uci and then it wont get applied. so i have heavy
>> heartedly decided to NAK this. i wish i had more time so we could hack
>> up a tiny tool to set the webui setting from uci. although that is
>> really would be an ugly hack.
>>
>> sorry but i hope that the explanation makes sense.
> 
> Well, it makes sense only when you need to set APN and PIN. But this
> seems to depend on the Provider and SIM card settings.
> 
> I know two cases where this is not necessary: "eplus.de" and
> "vodafone.es" (PIN lock was disabled manually before in the vodafone.es
> case).
> 
> Anyhow, this is maybe not a generic enough situation to merit adding
> this to OpenWRT...
> 
> bruno

that is a SIM card feature. if you disable the pin none of the protos
need a PIN. i tested it on a eplus card and it did require an APN.
however there was a patch on the mailing list just now that posted the
mikrotik scripts. they should be easy to integrate. i know its an extra
todo but we really want to have a solution that will work for all SIM
cards and not just some depending on the provide. hope you agree

John



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