Extract and reset the abs fuzz value for the x/y axes

The kernel fuzz handling is buggy, especially when we want to rely on the fuzz
value for our hysteresis. But since this is a hw property and (at least
sometimes) set by the driver, we can't make this a pure libinput hwdb set
either.

So our workaround is:
* extract the (non-zero) fuzz into a udev property so we don't lose it
* set the fuzz to 0 to disable the in-kernel hysteresis
* overwrite our internal absinfo with the property fuzz

This way we get to use the hw-specified fuzz without having the kernel muck
around with it. We also get to use the EVDEV_ABS_ values in 60-evdev.hwdb to
override a driver-set fuzz.

Two drawbacks:
- we're resetting the kernel fuzz to 0, this affects any other users of the
  device node. That's probably a minor impact only.
- we can only save this in a udev property there's a risk of this information
  getting lost when playing around with udev rules. That too should be a minor
  issue.

https://bugs.freedesktop.org/show_bug.cgi?id=105303

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/meson.build b/meson.build
index 60caf997..1c12fe1c 100644
--- a/meson.build
+++ b/meson.build
@@ -87,7 +87,7 @@ executable('libinput-device-group',
 	   install_dir : udev_dir)
 executable('libinput-model-quirks',
 	   'udev/libinput-model-quirks.c',
-	   dependencies : dep_udev,
+	   dependencies : [dep_udev, dep_libevdev],
 	   include_directories : [includes_src, includes_include],
 	   install : true,
 	   install_dir : udev_dir)