From fe3175748af2b2d7c6aced04d9565afafe8ff270 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Mon, 27 May 2024 14:25:17 +1000
Subject: [PATCH] evdev: don't return a size for 0-1 axes

Tablet pads historically need to have ABS_X/Y to be detected as tablets
but their min/max values are 0 and 1. Let's not return a size for those.

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1004>
---
 src/evdev.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/evdev.c b/src/evdev.c
index 7ed3eab8..cd920672 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -2725,6 +2725,10 @@ evdev_device_get_size(const struct evdev_device *device,
 	x = libevdev_get_abs_info(device->evdev, ABS_X);
 	y = libevdev_get_abs_info(device->evdev, ABS_Y);
 
+	if ((x && x->minimum == 0 && x->maximum == 1) ||
+	    (y && y->minimum == 0 && y->maximum == 1))
+		return -1;
+
 	if (!x || !y || device->abs.is_fake_resolution ||
 	    !x->resolution || !y->resolution)
 		return -1;