Hi Bjørn!

2016-01-20 17:25 GMT+02:00 Bjørn Mork <bjorn@mork.no>:

> > Bjørn, is there something missing in initialization?
>
> I don't think so. It all looks OK to me.  It's just the AT^DHCP?
> response which is a bit unexpected.  IIUC, the modem LEDs indicate a
> connection?  What about "AT^NDISDUP?" ?
>
Initial LED led operation was "blinking green". It changed to "slow
blinking blue"  after online-modem command. There was no change after
activate-context (that produced "AT^NDISUP..."). I did not try manual
"AT^NDISDUP?" command, though. I'll try it tomorrow.

>
> Did you try a DHCP client?  Maybe this firmware doesn't implement the
> AT^DHCP command but has a DHCP server?
>
I did not try. I'll try it tomorrow.

>
> > Is there something wrong with firmware?
>
> That would depend on the definition of "right" :)
>
> Huawei can do pretty much what they want since the functions are vendor
> specific.  They are probably happy as long as the firmware matches the
> Windows driver+application.  But usually they are pretty good at making
> consistent interfaces across different firmware code bases, so the
> unusual AT^DHCP? response is unexpected and might be considered a bug.
>
> > Is there any chance switching modem to HiLink mode (= using cdc_ether)
> like
> > the older versions did?
> > Would it be possible by downgrading firmware or by usb_modeswitch?
>
> I am guessing the answers are "yes" to all those questions.  But I don't
> know how...
>
I guess, it's not a good idea, but I could try removing huawei_cdc_ncm
set-up from udevng.c. Anyhow, just inserting udev rule for using cdc_acm
with this particular e3131 did not work.

>
> > If all the answers are no, I suppose I need to switch to for instance to
> > ModemManager or ppp without any managers.
>
> If MM can connect, then oFono should be able to as well.  I see that you
> didn't find any AT^NDISDUP command in the MM log.  Did it by any chance
> use PPP?  Or was there something else going on?

I don't think there bacome any PPP interfaces in ifconfig listing if I
recall it correctly.

Thanks,
Matti