test failed using Huawei E3276

[Tommy Cheng]

>> I:  If#= 1 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=02 Prot=16 Driver=qmi_wwan
>> E:  Ad=82(I) Atr=03(Int.) MxPS=  64 Ivl=2ms
>> I:* If#= 1 Alt= 1 #EPs= 3 Cls=ff(vend.) Sub=02 Prot=16 Driver=qmi_wwan
>> E:  Ad=82(I) Atr=03(Int.) MxPS=  64 Ivl=2ms
>> E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
>> E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms

> Are you sure this is a QMI interface? Do you have a Windows driver .inf
> file indicating that it is?  I've not yet deciphered what Huawei use the
> subclass for, but we should assume that there is an important difference
> between subclass 1 and 2.

> It may very well be some sort of NDIS interface, but we have no
> indications that it supports QMI.

I'm sure it is a QMI interface.  The windows driver .inf file mentions that it is a CDC ECM & NCM driver.

>> I:* If#= 2 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usbserial_generic
>> E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
>> E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
>> I:* If#= 3 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usbserial_generic
>> E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
>> E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

> And these are usb-storage.  I assume they are bound to usbserial_generic
> because you used the vendor and product options for usbserial?

> So 4 interfaces, where only 2 of them are non-storage.  That does not
> really look like any other QMI device I've seen. I believe they all have
> at least 2 serial ports (AT + QCDM) in addition to QMI.

> But anything is possible, of course.  The vendors are free to hide
> whatever they want.



Bjørn
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