RE: Mobile Broadband - how do I trace/debug the modem initialisation?

[Dan Williams <dcbw redhat com>]

On Tue, 2008-10-21 at 19:16 +0200, Main, Craig wrote:
> 
> -----Original Message-----
> From: Tambet Ingo [mailto:tambet gmail com]
> Sent: Tue 10/21/2008 11:19 AM
> To: Per Hallsmark
> Cc: Main, Craig; networkmanager-list gnome org
> Subject: Re: Mobile Broadband - how do I trace/debug the modem
> initialisation?
> 
> On Tue, Oct 21, 2008 at 12:14 PM, Per Hallsmark
> <per hallsmark t2data se> wrote:
> > Yes, this is definitly a modem that falls into the mbm plugin.
> > I've submitted a patch for it earlier to this list, although that
> > one requires another NetworkManager patch (changing a bit
> > how iface/ip_iface is used) as well as a driver which unfortunally
> > isn't submitted yet (but will hopefully be in the nearest days!)
> 
> I committed your patches from last week yesterday.
> 
> > Tambet, what about the plugins beeing able to specify a
> > init string and close string? (if the standard wont work that is)
> 
> Yeah, it's probably a good idea. Overriding the whole Enable() is a
> bit too much work if you only need to use a different init string.
> I'll have that later today.
> 
> 
> Don't know if this will help...
> I patched the version that comes with Ubuntu Intrepid
> (0.7~~svn20081018t105859-0ubuntu1) and replaced all ATZ commands with
> AT&F. This time things got further, here is the output from the debug
> trace....

...

> This looks much more promising, but there still seems to be an issue
> when it tries to dial.
> 
> Here is the trace of my wvdial exchange that works...
> 
> f3021114 f3021114-E6500:~$ wvdial 5530
> --> Ignoring malformed input line: "aler Defaults]"
> --> WvDial: Internet dialer version 1.60
> --> Cannot get information for serial port.
> --> Initializing modem.
> --> Sending: AT
> AT
> OK
> --> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
> ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
> OK
> --> Modem initialized.
> --> Sending: ATDT*99***1#
> --> Waiting for carrier.
> ATDT*99***1#
> ~[7f]}# !}!}!} }9}#}%B#}%}(}"}'}"}"}&} } } } }%}&mG!;J[1d]~

Holy crap, WTF is that???  I know you don't know, but wow.  That can't
be a valid standards-compliant implementation.

Dan

> CONNECT
> --> Carrier detected.  Waiting for prompt.
> ~[7f]}# !}!}"} }9}#}%B#}%}(}"}'}"}"}&} } } } }%}&mG!;[06]p~
> --> PPP negotiation detected.
> --> Starting pppd at Tue Oct 21 19:10:07 2008
> --> Warning: Could not modify /etc/ppp/pap-secrets: Permission denied
> --> --> PAP (Password Authentication Protocol) may be flaky.
> --> Warning: Could not modify /etc/ppp/chap-secrets: Permission denied
> --> --> CHAP (Challenge Handshake) may be flaky.
> --> Pid of pppd: 27901
> 
> 
> Thanks
> Craig
> 
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