Re: [PATCH] doc: Add modem Type property

[Denis Kenzior <denkenz@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1960 bytes --]

Hi Lei,

>>> +        string Type [readonly, optional, experimental]
>>> +
>>> +            String representing the type of the modem device.
>>> +
>>> +            The possible values are:
>>> +                "gsm"     Modem supports one or more of the 3GPP
>>> +                    family of technologies including GSM,
>>> +                    EDGE, UMTS, HSPA, LTE.
>>> +                "cdma"  Modem supports one or more of the 3GPP2
>>> +                    family of technologies including CDMA 1x,
>>> +                    EVDO.
>>> +                "hfp"    Bluetooth hands-free profile (HFP) modem
>>> +
>>
>> So one pointed question:
>>
>> How are we planning to support dual-mode devices with this property?  I
>> believe during the CDMA workshop we decided that the clients should
>> simply look at the set of interfaces, not a semi-static property...
> 
> We understand that the decision during the CDMA workshop but as we
> explained one use case in the cover letter
> (http://lists.ofono.org/pipermail/ofono/2011-January/007890.html) for
> this RFC, there will be cases where atom's D-Bus I/F is not suitable (or
> as a reliable way) for telling what is current mode (CDMA or GSM). E.g.,
> in the case of retrieving serial number from modem. Currently both CDMA
> and GSM shares the same I/F (ofono.org.modem) rather than having
> separate (ofono.org.cdma.modem). And, further if no other atom has been
> instantiated, then, there will be no other way to tell which mode (CDMA
> or GSM) the modem is. And, further for displaying serial number, upper
> layer will need to know it is CDMA or GSM. In case of CDMA, the serial
> number is MEID and GSM it is IMEI. As explained in cover letter, we
> anticipate more cases like this.

So let us say I have a dual-mode modem.  Are there now two serial
numbers? One for MEID and one for IMEI?  Are there now two
Manufacturers? Two Revisions?

Regards,
-Denis