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authorPeter Hutterer <peter.hutterer@who-t.net>2015-11-10 14:35:51 +1000
committerPeter Hutterer <peter.hutterer@who-t.net>2015-11-13 06:50:28 +1000
commitd7e61a7074b802b49f57549530b289bbaa0a4855 (patch)
tree74f8257e07ac346d160cb7edca4aca4f650d3336 /src/evdev.c
parent01e7ac48546d4534fa420ea1873214e738ea125d (diff)
Only map x and y to axes 0 and 1
The Logitech G600 has one device with all axes north of ABS_MISC. The current code assigns ABS_MISC as first axis to map to axis 0, i.e. x. On button press, one node sends the BTN_LEFT but the other node sends an ABS_MISC with a 1 0 value. ABS_MISC is mapped to axis 0, this moves the pointer to (0, y) on every button click. Avoid this by simply mapping any axis other than x/y to at least axis 3, and make sure we only override the MT 0/1 axes when we actually have MT axes. https://bugs.freedesktop.org/show_bug.cgi?id=92856 Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/evdev.c')
-rw-r--r--src/evdev.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/src/evdev.c b/src/evdev.c
index 17d9d61..3176660 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -1377,7 +1377,7 @@ EvdevAddAbsValuatorClass(DeviceIntPtr device, int num_scroll_axes)
}
atoms = malloc((pEvdev->num_vals + num_mt_axes) * sizeof(Atom));
- i = 0;
+ i = 2;
for (axis = ABS_X; i < MAX_VALUATORS && axis <= ABS_MAX; axis++) {
int j;
pEvdev->abs_axis_map[axis] = -1;
@@ -1385,9 +1385,14 @@ EvdevAddAbsValuatorClass(DeviceIntPtr device, int num_scroll_axes)
is_blacklisted_axis(axis))
continue;
- mapping = i;
+ if (axis == ABS_X)
+ mapping = 0;
+ else if (axis == ABS_Y)
+ mapping = 1;
+ else
+ mapping = i;
- for (j = 0; j < ArrayLength(mt_axis_mappings); j++)
+ for (j = 0; !pEvdev->fake_mt && j < ArrayLength(mt_axis_mappings); j++)
{
if (mt_axis_mappings[j].code == axis)
mt_axis_mappings[j].mapping = mapping;