#57 TabletPC chipmuted support

bug fix (27)

Dear Wacom list

I came here some time ago requesting a patch to get the driver init only with static variables as stated in xorg.conf and not try
to read from a "muted" chip.

Find attached now a reworked patch which apply`s to 0.8.0 and does introduce a new option called
Option "SkipMuted" "OK"

If this is configured the driver skips some init try`s and in combination with a minimal set of other xorg option the structures are setup
correctly and the device is usable even if the chip was muted on X startup.

Background Story:

Our Tablet pc has a dual input strategy where we have a resistive touchscreen and wacom ISDV4 Chipset.
The device is a i4XX series or i44D
can be viewed at

However we do have physical button which when pressed toggles between either resistive touch or wacom.
The problem is if the wacom is toggled "off" the driver wont init and this current X session will not be able to use the wacom even if the chip is "unmuted" during it.

With this patch and the new option the driver inits although the chip is silent and is usable when you "unmute" during this Xsession.

So please apply or suggest a different strategy . I think this patch doesnt influence to much and if one doesnt use "SkipMuted OK "
the behaviour is like before.

Please comment on it in any way

Regards Robert


  • Robert

    Robert - 2008-11-05

    File Added: wacom-SkipMuted-0.8.1-6.01.patch

  • Ping Cheng

    Ping Cheng - 2015-11-24
    • status: open --> closed-wont-fix
    • Group: --> Production

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