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evdev: only extract the fuzz for touchpads and touchscreens

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We don't have a hysteresis for tablet devices, so let's leave those as-is.

This may be a slight regression in behavior compared to pre-410b157e84 now the
kernel will apply the fuzz. Let's see if anyone notices, the fuzz is usually
so tiny on tablets that it shouldn't be noticable.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2019-06-26 13:55:36 +10:00
parent 82102f8599
commit 82958a31f1
1 changed files with 9 additions and 6 deletions
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15
src/evdev.c
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@ -1602,7 +1602,8 @@ evdev_reject_device(struct evdev_device *device)
}
static void
evdev_extract_abs_axes(struct evdev_device *device)
evdev_extract_abs_axes(struct evdev_device *device,
enum evdev_device_udev_tags udev_tags)
{
struct libevdev *evdev = device->evdev;
int fuzz;
@ -1614,10 +1615,12 @@ evdev_extract_abs_axes(struct evdev_device *device)
if (evdev_fix_abs_resolution(device, ABS_X, ABS_Y))
device->abs.is_fake_resolution = true;
if ((fuzz = evdev_read_fuzz_prop(device, ABS_X)))
libevdev_set_abs_fuzz(evdev, ABS_X, fuzz);
if ((fuzz = evdev_read_fuzz_prop(device, ABS_Y)))
libevdev_set_abs_fuzz(evdev, ABS_Y, fuzz);
if (udev_tags & (EVDEV_UDEV_TAG_TOUCHPAD|EVDEV_UDEV_TAG_TOUCHSCREEN)) {
if ((fuzz = evdev_read_fuzz_prop(device, ABS_X)))
libevdev_set_abs_fuzz(evdev, ABS_X, fuzz);
if ((fuzz = evdev_read_fuzz_prop(device, ABS_Y)))
libevdev_set_abs_fuzz(evdev, ABS_Y, fuzz);
}
device->abs.absinfo_x = libevdev_get_abs_info(evdev, ABS_X);
device->abs.absinfo_y = libevdev_get_abs_info(evdev, ABS_Y);
@ -1722,7 +1725,7 @@ evdev_configure_device(struct evdev_device *device)
evdev_fix_android_mt(device);
if (libevdev_has_event_code(evdev, EV_ABS, ABS_X)) {
evdev_extract_abs_axes(device);
evdev_extract_abs_axes(device, udev_tags);
if (evdev_is_fake_mt_device(device))
udev_tags &= ~EVDEV_UDEV_TAG_TOUCHSCREEN;