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Input: alps - use single touch data when v3 mt data contains only one finger

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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@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Hans de Goede 2014-07-25 22:46:53 -07:00 committed by Dmitry Torokhov
parent cdf333efdc
commit c38a448a23
1 changed files with 1 additions and 1 deletions
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2
drivers/input/mouse/alps.c
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@ -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 * If we don't have MT data or the bitmaps were empty, we have
* to rely on ST data. * to rely on ST data.
*/ */
if (!fingers) { if (fingers < 2) {
f->mt[0].x = f->st.x; f->mt[0].x = f->st.x;
f->mt[0].y = f->st.y; f->mt[0].y = f->st.y;
fingers = f->pressure > 0 ? 1 : 0; fingers = f->pressure > 0 ? 1 : 0;