Question about simulating a MT device with evemu-event

[Peter Hutterer]

On Mon, Nov 30, 2020 at 10:09:29AM +0100, input-tools at storiepvtride.it wrote:
> 
> Peter Hutterer writes:
> >
> > This is all you're simulating - finger down at that location. To get pointer
> > events you need to start moving the touch point in consecutive events, and
> > eventually release it.
> 
> I didn't mention that my test bash script has +7000 events :-) I
> understand that one "block" of events is not visible, I just expected
> even a single event to appear in `libinput debug-events`.
> 
> But I understand that I need to send "complete" and well-formed events in
> order to be understood and detected.
> 
> My end goal is simply to mimick a mouse using a keyboard, so it will
> probably make more sense to send EV_REL events.

yeah, definitely. the MT protocol has a lot of cornercases and you need to
make sure the state of the device is correct at all times. much easier to
just send EV_REL events which are handled as-is instead.o

Cheers,
   Peter

> 
> > Have a read of this post to get a better understanding of how evdev works:
> > https://who-t.blogspot.com/2016/09/understanding-evdev.html
> >
> > fwiw, I strongly recommend using python-libevdev over evemu-event. murch
> > more flexible.
> 
> Ah great, that's a great resource. I will experiment more with a proper
> library, I am using bash just for testing.
> 
> Thank you so much for the tips and for the fantastic work on libinput!
> 
> Cheers,
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