ModemManager create an abnormal CDMA bearer for the LTE modem

[Aleksander Morgado]

On 04/09/13 04:03, Fangxiaozhi (Franko) wrote:
> Dear Aleksander:
> 
> 	This is the log with your patch.
> 
> 	"usb0" is the net device of our modem.
> 

Well, this is really weird; for some reason getting the udev tag
specifying whether NDISDUP is supported doesn't always return the same
result. We even create a whole new GUdevClient and do a fresh
query_by_subsystem_and_name() each time we check it... With which modem
is this? I'll try to reproduce it here.

Anyway, please check with the attached workaround, which I think it's
better anyway. With the attached patch we would only be querying NDISDUP
support once when we first create the bearer. Let me know how it goes.


> Best Regards,
> Franko Fang
>> -----Original Message-----
>> From:
>> modemmanager-devel-bounces+fangxiaozhi=huawei.com at lists.freedesktop.or
>> g
>> [mailto:modemmanager-devel-bounces+fangxiaozhi=huawei.com at lists.freedes
>> ktop.org] On Behalf Of Aleksander Morgado
>> Sent: Monday, September 02, 2013 3:45 PM
>> To: Fangxiaozhi (Franko)
>> Cc: Dan Williams; modemmanager-devel at lists.freedesktop.org; Wenping
>> (Charles); Ben Chan
>> Subject: Re: ModemManager create an abnormal CDMA bearer for the LTE
>> modem
>>
>> Hey Franko,
>>
>> On 31/08/13 08:21, Fangxiaozhi (Franko) wrote:
>>> 06.942838  ModemManager[5021]: <debug> This device can not support
>>> ndisdup feature
>>> 06.942865  ModemManager[5021]: <debug> ^NDISDUP not supported,
>> creating default bearer...
>>
>> That's weird.
>>
>> Can you apply the following patch so that we can see which is the net port being
>> used in every case? The "ID_MM_HUAWEI_NDISDUP_SUPPORTED" tag should
>> always be available in the udev device, it doesn't make sense to have it
>> sometimes available and sometimes not.
>>
>> --
>> Aleksander


-- 
Aleksander
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