For v3 protocol devices, use the more accurate single touch data when the
mt data contains only one finger. Note the mt data reporting a finger count
of 1 should never happen, but better safe then sorry.
This brings the v3 bitmap handling in line with what the v4 code does,
allowing to factor out the common bits into a helper function.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/input/mouse/alps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 9bebeb4..c9991b4 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -669,7 +669,7 @@ static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse)
* If we don't have MT data or the bitmaps were empty, we have
* to rely on ST data.
*/
- if (!fingers) {
+ if (fingers < 2) {
f->mt[0].x = f->st.x;
f->mt[0].y = f->st.y;
fingers = f->pressure > 0 ? 1 : 0;
--
2.0.0
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