Re: [PATCH] Input: sentelic - filter on-pad clicks in absolute mode

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On Mon, Apr 02, 2012 at 06:37:04PM +0300, Oskari Saarenmaa wrote:
> On 02/04/12 18:05, Chase Douglas wrote:
> >On 04/02/2012 07:57 AM, Oskari Saarenmaa wrote:
> >>On 02/04/12 17:22, Chase Douglas wrote:
> >>>On 04/01/2012 11:30 AM, Oskari Saarenmaa wrote:
> >>>>On-pad clicks in absolute positioning single-finger mode are reported
> >>>>without the PHY_BTN bit set, the on-pad clicks are handled by userspace
> >>>>so the kernel shouldn't report them as real clicks.
> >>>
> >>>What is the definition of an "on-pad" click?
> >>
> >>In this case it's a tap on the pad without actually clicking it.  The
> >>Asus UX21 Zenbook has a touchpad that can be tapped or clicked.
> >>Single-finger taps on it are reported by the touchpad with FSP_PB0_LBTN
> >>flag set and FSP_PB0_PHY_BTN not set.
> >
> >So if I understand correctly, the device currently emits a "physical"
> >left button click event when the clickpad is tapped. Your patch will
> >prevent this event from being sent to userspace, since userspace does
> >its own tap detection. Is that correct?
> 
> Yes.  Without this patch there's no way to disable click-on-tap in
> userspace.

Makes sense to me. Tai-hwa, any objections?

BTW, I think we should suppress creating vscroll, hscroll and probably
flags attributes when touchpad is in absolute mode since they are not
applicable there (via attribute group's visible() methos). I am always
takig patches ;)

Thanks.

-- 
Dmitry
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