10-modem.fdi

[Trond Husø]

> To: Matthew Garrett <mjg at redhat.com>

> On Thu, 2008-05-29 at 23:45 +0100, Matthew Garrett wrote:
> > On Thu, May 29, 2008 at 05:48:23PM -0400, Dan Williams wrote:
> > 
> > > Yeah, though we do now have reports of cards/phones that don't respond
> > > to anything until given a PIN.  Not just from Marcel either.  In that
> > > case, there's nothing the prober can do...
> > 
> > The prober can be re-run after the desktop application has prompted for 
> > the PIN. It's easy enough to stick a callout method on USB modem devices 
> > to do that. The advantage of that is that hal can act as a cache of the 
> > data, rather than requiring every application that may want to use the 
> > device to perform its own probing on every open.
> 
> Right.  So what we should do is:
> 

> 2) If the prober fails because the device needs a PIN or whatever, it
> sets a key on the device like "prober.failed_count = 1"
> 
> 3) Something that cares (NM, whatever) notices prober.failed_count > 1
> and tries to send the right PIN to the device.  If that succeeds, it
> executes a D-Bus method call on the HAL device to re-probe
> 
> 4) If the prober succeeds, the device will acquire the right
> modem.command_sets, and everything is happy, NM notices the new
> capabilities and manages the device
> 
> 5) If the prober still fails, it increases prober.failed_count and NM
> (or whatever) can decide whether to try probing again
> 
> thoughts?
> 
> Dan
> 
> 
The AT+CPIN? command will return either PIN, PIN2, PUK and PUK2, so you
would need some code that can pick up these return codes. 

There are AT-commands that will return PIN, PIN2 and also PUK-codes. I
have an on board umts-card that I have to send a PIN-code to every time
I connect. For some reasons I've had to write the PUK-code two times
now. So your 10-modem.fdi should in some way return the return the value
of the AT+CPIN? command. 
There are also AT+ commands that will return the signal-strength of the
card.

I'm currently thinking of writing an application sort of similar to the
one that comes with Dell on Windows for this card. This so that I don't
have to run Shell-commands all the time, and have more control over
state of signals and such.

More on AT-commands here: http://www.gsm-modem.de/gsm-modem-faq.html or
here http://www.pharscape.org/content/view/24/53/

Don't know if this was on topic or off topic, but hope that I
contributed in some way.

best
Trond