[PATCH synaptics] Prevent button mashing on clickpads
dancol at dancol.org
Wed Oct 30 01:08:25 CET 2013
On 10/29/2013 05:04 PM, Peter Hutterer wrote:
> On Sun, Oct 27, 2013 at 04:24:47PM -0700, Daniel Colascione wrote:
>> The tiny patch below disables the clickpad hardware "button" when
>> syndaemon has asked us to disable tapping. Without this patch, I
>> frequently find myself accidentally clicking while typing.
> isn't this a physical button? if so, it'd be better to just disable the
> touchpad fully instead of just disabling tapping.
It's a physical button, but it's unlike other physical buttons in that
it takes up the _entire trackpad_. It's a lot easier to trigger this
button than it is to trigger a traditional button, so it really should
be treated as a tap for disablement purposes.
The idea behind using TOUCHPAD_TAP_OFF instead of TOUCHPAD_OFF is to
allow the user to move the cursor as soon as possible after typing. By
the time the user gets around to actually clicking something, the
type-inhibit delay will have expired and we'll have turned off
TOUCHPAD_TAP_OFF. This way, the user never notices the delay --- users
will take a few hundred ms to click anyway. If we used TOUCHPAD_OFF
instead, you'd either have to shorten the delay or cause users more
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