Re: [PATCH] USB: qcserial: Add support for Qualcomm Gobi 2000 devices

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Hi Greg,

> > Add ids for Qualcomm Gobi 2000 QDL and Modem modes. Gobi 2000 has a
> > single altsetting in QDL mode, so adapt code to handle that.
> > 
> > Firmware upload protocol is also slightly different, with an
> > additional firmware file. However, qcserial doesn't handle firmware
> > uploading.
> > 
> > Tested on Lenovo Thinkpad T510.
> > 
> > Signed-off-by: Anssi Hannula <anssi.hannula@xxxxxx>
> > ---
> > 
> > BTW, what is the reason for the driver exposing the QDL device as a
> > serial device instead of just uploading the firmware itself?
> 
> That's the way the original driver from qualcom did it, and so I made it
> compatible with the already-existing firmware upload program.
> 
> If you can think of a better way to handle this whole thing, please let
> me know.

we should be doing the firmware loading via libusb in userspace and not
attach qcserial to it at all. the qcserial driver should only claim
interface which expose AT command interface.

Regards

Marcel


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