[PATCH libinput 0/8] Add libinput_device_suspend() to disable devices

[Peter Hutterer]

On 23/08/2014 06:03 , Bill Spitzak wrote:
> I was imagining a trackpad that is not "smart" and somebody wants to
> define a global hotkey to turn it off because they keep getting unwanted
> events. The disable state would allow this to be done without rewriting
> the trackpad driver.
>
> My main point is I don't think you need to distinguish enabled from
> "smart" enabled. The smartness is in the device driver and could be
> considered part of how it generates events, and there should be no
> reason to turn it off.

only if our palm detection works at near 100% accuracy.

Cheers,
   Peter


>
> On 08/21/2014 07:54 PM, Peter Hutterer wrote:
>> On Thu, Aug 21, 2014 at 06:35:57PM -0700, Bill Spitzak wrote:
>>> Seems to me you only need two states: what you call disabled and what
>>> you
>>> are calling "smart disable".
>>>
>>> The fully disabled is so a button the hardware does not know about can
>>> disable the device. Or a wayland compositor could use a mouse being
>>> added to
>>> disable the device.
>>
>> the compositor doesn't know which device is a mouse, which devices are
>> virtual, or even if the touchpad is an external touchpad (which wouldn't
>> need that feature).
>>
>>> But the "smart disable" sounds like part of the device driver / libinput
>>> driver, just like palm detection. There is no reason to turn it off.
>>> Maybe
>>> to "tune" it but that would require a much more complex api.