Additional driver for USB touch support

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Hi

I have some USB based touch controllers. These controllers are working
well using the hid_multitouch driver.

I would also like to add some additional protocol support for
diagnostics and re calibration. I am using the touch interface for the
same, whereby the control endpoint is used to send the request and
digitizer end point is used to get the response. (it is a legacy
design so i cannot change it)

My plan is to add the additional driver support to this file
drivers/input/touchscreen/usbtouchscreen.c and disable the default
support for the hid_multitouch by making an entry in the hid-blacklist
array in this file drivers/hid/usbhid/hid-quirks.c

Is there a better idea than this?

-- 
Regards,

Prajosh Premdas
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