RE: [PATCH 0/1] isimodem: fix network registration for older modems

[claudio Degioanni <claudio.degioanni@zirak.it>]

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Hi Mika,


On Tue, 2011-03-29 at 07:07 +0000, Mika.Liljeberg(a)nokia.com wrote:
> Hi Claudio,
> 
> > I have tested the path of isi modem on nokia n95 and nokia 6760, 
> > and I report the result of my test
> > 
> > 1) Using nokia N95 and ofono 
> > * I have attached the phone to my computer 
> > * I have used the ./online-modem 
> > * I have set apn/username/password and activate the context
> > 
> > It works (log onlineUsingOfonoTest file attached to mail)
> 
> Cool.
> 
> > 2) Using nokia N95 and ofono/connma
> > * I have attached the phone to my computer
> > * Start connman and I have checked it set OnLine the modem correctly 
> > * I have set apn/username/password and activate the context
> > * Using connect of connman, but i receive the message  	
> > 		
> > 	org.ofono.Error.NotAttached GPRS is not attached
> > 
> > I reports the log onlineUsingConnmanTest, can be a problem of 
> > connman ? 
> 
> I was able to reproduce this with N95 without using connman. There seems to be a conflict with the way atom watches are registered and the way isiusb creates and probes two variations of the network registration driver in parallel. The problem is timing dependent, which is probably why we haven't seen it here before.
> 
> > 1) Using nokia 6760 and ofono
> 
> > * I have attached the phone to my computer 
> > * I have used the ./online-modem 
> > * I have set apn/username/password and activate the context
> > 
> > It not works, (log in nokia6760 file attached to mail)
> > 
> > Any suggestion ? 
> 
> I believe the same problem also happens with 6760 and could potentially happen with any ISI modem. Now that I know what it is, I'll try to provide patches.

Thank you so much for your support and help, please let us know once you
have the patch.

> 
> > is it possible to know the list of supported mobile phone as 
> > 3g modem ?
> 
> We don't have a list of supported phones as such as we're not systematically tesing oFono against old Nokia phones. The isiusb plugin is primarily a development aid, allowing us to test isimodem drivers on a PC instead of on-target. There are some limitations in using the isimodem driver over USB this way. All functionality may not be available with all phones. Mostly it works fine, though.

I see. 

Since each phone can potentially use a different way to talk to the pc
(Android: rndis, Nokia: AT commands / PPP interface over USB if I
understand it correctly), we are trying to understand which of these
methods (hence which phone family) is preferable to be used/supported
with connman / oFono.
Do you have any suggestion for us?

> 
> Regards,
> 
> 	MikaL

regs Claudio