Problem with E392 connection using wwan0

[Madhan]

hi bjorn ,

>Which kernel (i.e. driver) version do you use?
*I tried in 3.5 and also in 3.10 *, in both cases i was not successful
using AT

>Why don't you want to use it?
*I am trying to just sort out , what qmi connection is doing in addition
after getting the AT .

*
Cause when I was *sniffing usb* i was able to find the same even when i am
using *qmicli , this also
uses AT^DHCP? command  *

+aleksander : Can you please give us some suggestions


On Fri, Aug 16, 2013 at 6:19 PM, Bjørn Mork <bjorn at mork.no> wrote:

> Madhan <madhan.mepco at gmail.com> writes:
>
> > hi ,
> > I have used qmi_wwan and cdc_wdm for my device
> >
> > Sending At commands through /dev/ttyUSB0(option)
> >      a) *AT^NDISDUP*=1,1,"my_apn"
> >         ok.
> >      b)* AT^DHCP?*
> >         gives me IP also
> >
> > But when I set the IP with the provided netmask , dns and gw
> > I am *not able to connec*t to internet .
> >
> >
> > But when I use the "libqmi"
> > *qmicli -*d /dev/cdc-wdm0 --wds-start-network=airtelgprs.com,PAP,"",""
> >  --client-no-release-cid
> >
> > I am able to *successfully connect *to network using my network
> interface .
> >
> > Cant I do the same without using qmicli ?
> > Is there anything in specific which establishes connection after getting
> IP
>
> Which kernel (i.e. driver) version do you use? A few fixes for known
> firmware bugs went into v3.9 and the still maintained stable kernels
> where they could be applied without changes.  I could not make my E392
> work using AT^NDISDUP without some of these fixes.
>
> But I do believe the QMI connection method is more stable on these
> modems.   The Windows driver/application use it, so that's the mode
> getting any testing.  The AT command method might work, but I recommend
> using QMI.  As you have already found out, it is more reliable.  Why
> don't you want to use it?
>
>
> Bjørn
>



-- 
Madhan
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