Soundgraph FingerVU 706 touch input

[pinthenet]

I am trying to get the touch input on this device working but I'm not moving forward with the tips I have found so far - there don't seem to be many sources of info for this device. I got the display working by compiling a new kernel with DisplayLink activated as described in various locations. For the touch functionality I found that the device is /dev/hiddraw7 and if I

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sudo /dev/hiddraw6

I get output when I touch the screen.
In /dev/input/by_id I have the following:

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lrwxrwxrwx 1 root root 9 Jan  1  1970 usb-SoundGraph_Inc.---_SoundGraph.Inc-event-kbd -> ../event3
lrwxrwxrwx 1 root root 9 Jan  1  1970 usb-SoundGraph_Inc.---_SoundGraph.Inc-event-mouse -> ../event2
lrwxrwxrwx 1 root root 9 Jan  1  1970 usb-SoundGraph_Inc.---_SoundGraph.Inc-if01-event-kbd -> ../event3
lrwxrwxrwx 1 root root 9 Jan  1  1970 usb-SoundGraph_Inc.---_SoundGraph.Inc-mouse -> ../mouse1

I installed ts-lib & xserver-xorg-input-tslib but without success. Can anyone tell me what the missing link (or driver) is? I seem so close but just can't get the last bit to work.

Thanks in advance
John

[pinthenet]

I was a bit frustrated when I posted my first message yesterday and the info I provided probably wasn't complete. After spending another fruitless day I have established the following:

The display works fine.
The keyboard and pointer devices are listed in Xorg.0.log, evtest and xinput. If I run these I seem to get meaningful parameters but evtest doesn't show any response when I touch the screen. I have found various suggestions for xorg.conf & /usr/share/X11/xorg.conf.d/10-evdev.conf settings, but without effect.

The only place I get any response is from cat /etc/hidraw6, which responds to touches on the screen.

I am also using an ETrust wireless keyboard/touchpad without any problem, and evtest shows data when typing/mousing. Also the corresponding hidraw device shows output with cat.

For the Fingervu it seems I am missing a 'link' between hiddraw & evdev. Maybe it's just not possible to get this working?