Re: 03f0:521d Hewlett-Packard (HP hs3110)

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Dan Williams <dcbw@xxxxxxxxxx> writes:
> On Wed, 2014-07-23 at 14:33 +0000, Stanescu Victor wrote:
>> /dev/cdc-wdm2 doesn't work. Further more, instead of freezing at cat, it 
>> freezes from echo.
>> 
>> Ctrl-c doesn't stop the frozen echo.
>
> I'm pretty sure this device does not expose QMI at all, from looking at
> through the drivers.  The driver package from HP *does* have QMI
> drivers, but only for the lt4112/lt4124/lt4126.  The hs3110/hs3114 are
> assigned to the "Jungo"-type driver for Win < 8.  For example:
>
>   <DeviceInfo>
>      <item module="MU736" VID="03F0" PID="521D" Baseline="JUNGO" Remark="HP"/>
>      <item module="MU736" VID="03F0" PID="541D" Baseline="JUNGO" Remark="HP"/>
>      <item module="ME906" VID="03F0" PID="581D" Baseline="QUALCOMM" Remark="HP"/>
>      <item module="ME906" VID="03F0" PID="561D" Baseline="QUALCOMM" Remark="HP"/>
>      <item module="ME906" VID="03F0" PID="591D" Baseline="QUALCOMM" Remark="HP"/>
>   </DeviceInfo>

Doesn't look like qmi_wwan currently supports those QUALCOMM devices.  It
probably should?  Do you know if all these use Huawei's vendor specific
subclass+protocol scheme?

> In any case, if the devices have MBIM descriptors, then we should try to
> drive them via MBIM, since that appears to be what happens with these
> devices on Windows 8. 

Yes, that should be the priority.  We need to figure out why the modem
cannot(?) be switched to cfg #2.  That's where we primarily want it.

> Otherwise, it should be AT+ECM I think, but not
> QMI for the 3110/3114.

Ah, OK.  Then we probably don't have a 100% matching driver candidate,
do we?  Can't be a big problem to fix though.

But I'm leaving for a 4 week motorcycling/fishing/hiking/whatever
vacation tomorrow, so I guess I shouldn't promise anything :-)


Bjørn
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