Dnia 2012-02-24, pią o godzinie 15:59 +0000, Przemo Firszt pisze:
> Dnia 2012-02-24, pią o godzinie 09:55 -0600, Chris Bagwell pisze:
[..]
> > Sorry. No ideas except: Is this new behavior since changing to
> > Procotol 5 (adding ABS_MISC)?
>
> I'd rather link it with the moment when I realised that my tablet is
> handled by wvdev instead of wacom driver. Fixing the name and switching
> to wacom broke rocker buttons. I'll confirm that.
OK, lads, I narrowed down the problem (ssh & gdb are really good tools):
wcmSendButtons (in wcmCommon.c) contains this:
> /* Tablet PC buttons only apply to penabled devices */
> if (common->wcmTPCButton && IsStylus(priv))
> {
> first_button = (buttons <= 1) ? 0 : 1;
>
> /* tip released? release all buttons */
> if ((buttons & 1) == 0)
> buttons = 0;
> /* tip pressed? send all other button presses */
> else if ((buttons & 1) != (priv->oldButtons & 1))
> priv->oldButtons = 0;
> /* other button changed while tip is still down? release tip
> */
> else if ((buttons & 1) && (buttons != priv->oldButtons))
> {
> buttons &= ~1;
> first_button = 0;
> }
> }
If I hover the stylus and press rocker button the condition
(common->wcmTPCButton && IsStylus(priv)) is true. "buttons" equals 2 or
4 (right or middle button), but tip is not touching the surface, so this
is also true: ((buttons & 1) == 0) and it means that buttons gets
resetted to 0! That doesn't happen for eraser because IsStylus(priv) is
false.
When the tip is on the surface, buttons works as expected.
Setting TabletPCButton to off fixes the problem:
xsetwacom --set "Wacom Intuos4 WL stylus" "TabletPCButton" "off"
but I belive that TabletPCButton should be "off" by default for Intuos4 WL.
I'm tracking down why it's ON by defauls (if you know why, let me know!)
--
regards,
Przemo
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