When I plug in the Huawei USB stick, two tty devices get generated,
usually
/dev/ttyUSB0 and /dev/ttyUSB1.
smslib can be used on either of them - however, it seems that CMTI
will
only be indicated on the second one (usually /dev/ttyUSB1).
Apparently, umtsmon (umtsmon.sourceforge.net) knows about this
behaviour
and I remember to have seen in it's debug log something of using
/dev/ttyUSB0 for connection and /dev/ttyUSB1 for control.
For my test with smslib I have created a small program, that
1) discovers all active ports using
CommPortIdentifier.getPortIdentifiers()
2) creates a gateway on each of these ports
3) tries to activate each gateway by adding it to a temporary Service
and
starting the service
4) if this is successful, basic parameters like manufacturer, model
and serial number are read from the gateway. This is used to
decide
if the port is a port that is currently occupied by my target
device
5) the temporary Service is then stopped and if the port qualified,
the
Gateway is added to another (common) Service object.
After all ports are through, I end up with the common Service object
with
two Gateways attached. This is the Service, I use for further SMS
processing.
It will accept the CMTI from whichever port the UMTS stick decides to
send it to.
Even though this type of discovery works for me, I would appreciate to
have
a function within smslib to do it. Such a function could also be used
to select
the correct ATHandler based on information read from the device.
... but that's only a proposal for enhancement - not strictly
necessary.
On 13 Jul., 18:15, Thanasis <[email protected]> wrote:
> Hi,
>
> Thanks for this - This device is much discussed here.
>
> However, I am a bit confused... What do you mean by two ttys??? Do you
> mean that smslib is required to manage to ttys for one modem?
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