Proposal v2: identifying modems and mobile broadband cards

[Marcel Holtmann]

Hi Dan,

> > > - An interface that has the "serial" capability acquires the 'modem'
> > > capability if the serial interface is indeed known to have a modem on
> > > the other side
> > > 
> > > - An interface with the 'modem' capability may also acquire the property
> > > 'modem.at_command_sets', which is a string array of supported command
> > > sets, denoted by their abbreviated standards name. If the property is
> > > present, it is assumed the modem supports rudimentary Hayes-compatible
> > > AT commands.  The key may contain _one or more_ of the following values:
> > > 
> > >    a) IS-707-A  (for CDMA supporting cards)
> > >    b) GSM-07-07  (for GSM supporting cards)
> > >    c) GSM-07-05  (for GSM supporting cards)
> > 
> > I would say we use modem.command_sets then we could specific non-AT
> > command sets if needed.
> > 
> > I think its is clear IS-* and GSM-* imply basic Hayes-compatible
> > commands. At least for GSM I know it is part of the specification.
> > 
> > Can we use the ETSI document numbers instead of calling it GSM. It is no
> > longer GSM only. Nowadays they cover also UMTS. For GPRS/EDGE and UMTS
> > the commands are actually the same.
> 
> The descendant of GSM-07-07 (and maybe 07.05?) appears to be:
> 
> 3GPP-TS-27.007
> 
> what about older cards that might not support 07.05?

actually I have to look into that in detail. Haven't looked at these
documents for a while.

Regards

Marcel