Re: input: evdev.c EVIOCGRAB semantics question

[Dmitry Torokhov]

Hi Mattia,

On 8/14/06, Mattia Dongili <malattia@xxxxxxxx> wrote:
> pbbuttonsd is a nice utility that (between the other things) monitors
> keyboard and mouse activity and eventually sends the laptop to sleep.
> The synaptics driver uses EVIOCGRAB and they don't work nice together
> (eg: laptop goes to sleep even if actively using your touchpad)...
>
> Now, with your proposal a user not using the synaptics driver and would
> lose multiplexing to /dev/input/mice.

Yes, you are right, it won't work.

> So why not just make EVIOCGRAB mean "don't send events to
> mousedev but still report data to others opening the device"?

That darn layering thing. We don't want evdev to know about all other
handlers there are.

--
Dmitry
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