Re: Add Support for Sierra MC73xx

[Martin Chaplet <m.chaplet@kerlink.fr>]

[-- Attachment #1: Type: text/plain, Size: 2028 bytes --]



On 29/04/2016 17:44, Denis Kenzior wrote:
>
>>
>> This card is mainly QMI but also have Diag, NMEA and AT interfaces
>> (ttyUSB). I think that's why he did it in setup_sierra.
>>
>
> What is the AT interface capable of?  Can this modem be driven using
> AT commands instead?  Would certainly be easier to debug.

All main commands are available ( ETSI) but I don't think PPP can be used.
Additionnaly, it's a 4G modem, using PPP layer instead QMI will reduce
performances, isn't it ?

Do you mean I can use an "hybrid" mode using modem management through AT
and network through QMI ?

>
>>>
>>> Your modem doesn't seem to want to read anything from the SIM.  So
>>> that is why your gprs isn't showing up.
>>>
>>> Do you have a SIM in there or a PIN set?
>>
>>
>> OK, so I understand that Data feature is detected by scanning SIM
>> capabilities + chip capabilities (UMTS, LTE, ...)
>> Am I right ?
>
> Sort of.  oFono is a full telephony stack, so we expect the basics to
> be provided.  IMSI availability tells us that the SIM has been
> initialized to the point that it is useable.  E.g. PIN has been
> unlocked/entered.
>
OK, I see.
>>
>> My SIM doesn't have PIN and I can use Standard QMI tools (libqmi) to
>> bring up a connection.
>> I will so investigate around SIM QMI requests / replies.
>
> Are sim operations supported / working on this modem with libqmi?
Yes.
Please find few tests below

$ qmicli -d /dev/cdc-wdm0 --dms-uim-get-imsi   
[/dev/cdc-wdm0] UIM IMSI retrieved:
        IMSI: '208103790757141'

$ qmicli -d /dev/cdc-wdm0 --dms-uim-get-state
[/dev/cdc-wdm0] UIM state retrieved:
        State: 'initialization-completed'

$ qmicli -d /dev/cdc-wdm0 --dms-uim-get-pin-status
[/dev/cdc-wdm0] PIN status retrieved successfully
[/dev/cdc-wdm0] PIN1:
        Status: disabled
        Verify: 3
        Unblock: 10
[/dev/cdc-wdm0] PIN2:
        Status: enabled-not-verified
        Verify: 2
        Unblock: 10


>
> Regards,
> -Denis
>


[-- Attachment #2: attachment.html --]
[-- Type: text/html, Size: 3653 bytes --]

[-- Attachment #3: signature.asc --]
[-- Type: application/pgp-signature, Size: 836 bytes --]