Click on touch behavior using evdev

[Peter Hutterer]

On Fri, Mar 15, 2013 at 09:22:17PM +0000, Amit Uttamchandani wrote:
> Hello,
> 
> I posted this on debian mailing list but I am thinking this is a
> better place to post.
> 
> I'm currently using debain wheezy and have a touch screen. The xorg
> evdev driver is correctly used and for the most part, all is well.
> 
> I would like to however tweak the settings so that a touch simulates a
> button press and release. Currently, I see the following when I do a
> *xinput test <id>*:
> 
> motion a[0]=1002 a[1]=1221 
> button press   1 
> motion a[0]=1001 a[1]=1219 
> motion a[0]=999 a[1]=1218 
> motion a[0]=998 a[1]=1217 
> motion a[0]=996 a[1]=1216 
> motion a[0]=995 
> button release 1 
> 
> Ideally it should be:
> 
> motion a[0]=1060 a[1]=601 
> button press   1 
> button release 1 
> 
> This is so that the accuracy is better and the delay between click and
> release is reduced.
> 
> I built and compiled the latest evdev from source but see no options to
> configure the quick release settings.
> 
> I am currently looking at evdev.c and I'm hoping I can modify something
> here to achieve the desired behavior.
> 
> Any ideas?

evdev currently doesn't have any tap-to-click functionality. Please file a
bug and attach your patch there.

Cheers,
   Peter