Re: Support for HP lt4112 Gobi 4G Modem

[Martin Hauke <mardnh gmx de>]

Hi,

On 14.11.2014 21:12, Dan Williams wrote:

> I see that QMI works on the device, and that would be the preferred
> method to manage it.  If you keep the qmi_wwan changes, the ModemManager
> should be able to handle the device as a QMI device and use the cdc-wdm0
> interface for control (QMI commands) and the network interface for data.
>
> MBIM might work too, but I"m not sure what the driver binding situation
> would be there yet.  Since QMI seems to work lets try that first.

I've just tested an LTE-connection via qmi/wwan with ModemManager 1.0.0
without any problems.
However the maximum downlinkspeed wasn't better than before with the
AT-interface and was nearly the same as on Windows 8.1 (which seems to
use MBIM).

Are there any known issues with ModemManager when exposing the AT- and
the QMI-interfaces in parallel ?

> > Interestingly the device also expose a CCID compatible smartcard interface.
> > Unfortunately my naive approach to add support to the pcsc-lite ccid
> > driver adding USB vendor/product-id/description to
> > ifd-ccid.bundle/Contents/Info.plist did not work (see attachment).
> >
> > Has anyone worked with those types of PCSC-interfaces before?

Any thoughts on this?
It would be really cool to have this working since you can then send raw
APDUs to the SIM.

best regards,
Martin