hid: egalax 0x0eef:0x0001 no longer detected by hid-multitouch

["Sebastian Dalfuß" <sd@sedf.de>]

Dear Maintainers,

In 3.6.x the egalax touch panel (Vendor: 0eef, Dev: 0001) worked 
perfectly well with hid-multitouch, right out of the box. In 3.9 and 
3.10 it doesn't; the panel doesn't show up in /proc/bus/input/devices .
If the module usbtouchscreen is present, 3.9/3.10 wrongly try to use 
that one (flipped y-axis, wrong scale, get's stuck) instead of 
hid-multitouch(worked previously perfectly well, no need for 
calibration, quirks, configuration). If usbtouchscreen isn't present, 
the panel isn't detected, even if hid-multitouch gets poked with appropriate
parameters in /sys/module/hid_multitouch/drivers/hid\:hid-multitouch/new_id .
In an desperate attempt, I manually added the device/vendor id to
hid-multitouch.c, which didn't yield any improvement. It seems that the hid
subsystem doesn't even recognize that this device is indeed a hid 
touchpanel.

Is there a way to force hid to take care of that vendor/device-id, as a
temporary workaround?

This issue is also filed in Bugzilla: 
https://bugzilla.kernel.org/show_bug.cgi?id=60816

lsusb-snippet:
https://bugzilla.kernel.org/attachment.cgi?id=107362

Greetings,
Sebastian Dalfuß
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