evdev: only extract the fuzz for touchpads and touchscreens

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>

diff --git a/src/evdev.c b/src/evdev.c
index 14fce3f..940a2fd 100644 (file)
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -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;