Re: Huawei E3372

[Denis Kenzior <denkenz@gmail.com>]

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Hi Christophe,

> usb 1-1: New USB device found, idVendor=12d1, idProduct=15b7
 > Using ATI, modem present itself like that:
 >
 > Manufacturer: huawei
 > Model: E3372H
 > Revision: 21.315.01.00.314
 > IMEI: XXXX
 > +GCAP: +CGSM,+DS,+ES
 >
 > My problem now is how to know if I should send AT+CGDATA="PPP",1 or
 > ATD*99***1# when activating context in at modem driver. I see in this
 > driver and others that a VENDOR information can be sent from plugin but
 > I imagine that other Huawei devices support AT+CGDATA="PPP",1.
 >
 > Do you have any idea of what I should do to support this modem without
 > disturbing other devices?

You could build a database of various quirks that are required for each 
model.  The index into the database could be the product id if it is 
unique, or the model / revision information from 'ATI"

Another idea would be to have the gprs context driver try to parse the 
AT+CGDATA=? response.  If 'PPP' L2P is not found, then fallback to using 
ATD*99.

Regards,
-Denis