Peek at the ABS_MT_SLOT-1 axis. Expect that touch screens only
have axes inside the MT range.
---
src/udev/udev-builtin-input_id.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/udev/udev-builtin-input_id.c b/src/udev/udev-builtin-input_id.c
index 0f9f021..7fa7d1a 100644
--- a/src/udev/udev-builtin-input_id.c
+++ b/src/udev/udev-builtin-input_id.c
@@ -171,6 +171,10 @@ static bool test_pointers(struct udev_device *dev,
has_mouse_button = test_bit(BTN_LEFT, bitmask_key);
has_rel_coordinates = test_bit(EV_REL, bitmask_ev) && test_bit(REL_X,
bitmask_rel) && test_bit(REL_Y, bitmask_rel);
has_mt_coordinates = test_bit(ABS_MT_POSITION_X, bitmask_abs) &&
test_bit(ABS_MT_POSITION_Y, bitmask_abs);
+
+ /* unset has_mt_coordinates if devices claims to have all abs axis */
+ if(has_mt_coordinates && test_bit(ABS_MT_SLOT, bitmask_abs) &&
test_bit(ABS_MT_SLOT - 1, bitmask_abs))
+ has_mt_coordinates = false;
is_direct = test_bit(INPUT_PROP_DIRECT, bitmask_props);
has_touch = test_bit(BTN_TOUCH, bitmask_key);
/* joysticks don't necessarily have buttons; e. g.
--
2.1.4
_______________________________________________
systemd-devel mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/systemd-devel
