Re:Re: about ppp0 and Networkmanager

["tommy.hong" <hongjiujing 126 com>]

hi,dan!i have tested nm0.7.1 in my ARM11 board,use usbserial driver,it can 
probe 3g modem and can connect 3G network successfully!
But it connect successfully the first time ,init modem timeout the next time ,unless reinsert 3g wirless card and intilialize !
I have found that it caused by havn't ATH before reconnect!

在2009-09-20 22:36:32，"Dan Williams" <dcbw redhat com> 写道：
>On Thu, 2009-09-10 at 17:32 +0800, tommy tommy wrote:
>> hi,Dear Dan!
>> 
>> Now i met a problem with usb evdo card!
>> 
>> When i insmod usbserial with vendor id and product id,pppd connect OK
>> with ttyUSB1 and can access internet with ppp0!
>> 
>> But I want to use Networkmanager with ppp,because ppp0 isn't a
>> standard platform device ,it is kernel virtual net
>> (/sys/device/virtual/net/ppp0),causes HAL can't know it is a real
>> network,Networkmanager depend on HAL!
>> 
>> Serveral days ago i have fix marvell8686 driver kernel hotplug
>> bug,does usbserial driver miss similiar issue ?
>
>NM 0.7.1 and later probe modems dynamically to figure out their
>capabilities.  But it doesn't probe devices driven by 'usbserial' since
>they are not generally supposed to be 3G modems.
>
>Your 3G modem USB ids should be added to 'option' (for Option, ZTE,
>Huawei, Novatel, etc devices) or 'sierra' (for Sierra devices), because
>those drivers enable the high-speed communication that 3G devices are
>used for.
>
>usbserial is not built for high-speed communication and thus your
>transfer rates will be quite limited.  If you add your modems IDs to a
>known mobile broadband driver (like 'option') it should get picked up by
>NM.
>
>Dan
>
>
>> Thanks all!
>> 
>> Platform :ARM11
>> Linux kernel version:2.6.24.2
>> 
>> Tommy China
>

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