Am Freitag, 15. Dezember 2006 16:53 schrieb Phillip Susi:
> Oliver Neukum wrote:
> > Hi,
> >
> > I have got a question about modems which use the AT command set, but
> > don't use in band signalling like true rs232 modems. Would two device nodes
> > per communication channel be a good interface?
>
> Huh? What do you mean "don't use in band signaling"? If you are asking
> how you issue AT commands to the modem while connected, you have to
> break to command mode. IIRC, this involves sending a special break
No, I am talking about how to support modems which don't have a
command mode. These USB modems don't accept AT commands
through the same channel as data. They take them encapsulated in special
command messages to endpoint 0.
How do I export this capability to user space? I am thinking about having
two device nodes. But there may be a driver setting another precedent.
Therefor I am asking.
Regards
Oliver
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