Re: Re:Re: Re:Re: about ppp0 and Networkmanager

[Dan Williams <dcbw redhat com>]

On Wed, 2009-09-23 at 09:54 +0800, tommy.hong wrote:
> hi,dan!thank for your reply!
> 
> I have found what's wrong with my evdo card!
> Because i use /dev/ttyUSB1 (modem port),evdo card's engineer say there
> is something wrong with it for H/W,they are looking for the bug!
> 
> I use other one(China,TDSCDMA,datang company produce),it is ok when
> reconnect !

I think it's probably the right thing to do to hang up explicitly anyway
though; otherwise quitting NM might leave the card in data-enabled
state, even though no packets are getting transferred because PPP is
down.  (note this isn't a problem with 0.8 and modem-manager...)

BTW, is the AT interface for TD-SCDMA any different than for normal
GSM/UMTS cards?  Are there PDF specifications for the AT commands you
could point me to?   Could you grab the output of "AT+CLAC" for me on
your TD-SCDMA card?

Thanks!
Dan


> 
> 
> 
> 
> 在2009-09-23 08:26:11，"Dan Williams" <dcbw redhat com> 写道：
> >On Sun, 2009-09-20 at 23:41 +0800, tommy.hong wrote:
> >> 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!
> >
> >Could be the case, yeah.  So to fix that, we want to pass the reason
> >code to nm_device_deactivate_quickly() from nm_device_deactivate() and
> >let the subclasses handle it appropriately.  We do this so that we can
> >distinguish between a manual disconnection, and an unplug.  On unplug,
> >we can't try to talk to the modem because it's not there anymore.  We
> >can use the reason code to detect that, it will be
> >NM_DEVICE_STATE_REASON_REMOVED when the device was unplugged.
> >
> >If it's not NM_DEVICE_STATE_REASON_REMOVED, then we can flash the device
> >to bring it into command mode, and issue the ATH, then continue.
> >
> >Any chance you could try to create that patch?  Let me know if you have
> >any questions.
> >
> >Dan
> >
> >> 
> >> 
> >> 
> >> 
> >> 
> >> 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
> >> >
> >> 
> >> 
> >> 
> >> ______________________________________________________________________
> >> "中国制造",讲述中国60年往事
> >
> 
> 
> 
> ______________________________________________________________________
> 网易邮箱用户购物独享现金返还