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| author |   Henrik Rydberg <rydberg@bitmath.org> | 2015-02-01 11:25:14 -0800 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-02-01 11:50:35 -0800 |
| commit | 448c7f3830ca283e485aa943279acea6bde8b270 (patch) | |
| tree | 9e5b1ce72aa87035bc73595d2ce925bacec6a155 /drivers/input/mouse/cypress_ps2.c | |
| parent | Input: drv2667 - remove wrong and unneeded drv2667-haptics modalias (diff) | |
| download | linux-dev-448c7f3830ca283e485aa943279acea6bde8b270.tar.xz linux-dev-448c7f3830ca283e485aa943279acea6bde8b270.zip | |
Input: MT - add support for balanced slot assignment
Some devices are not fast enough to differentiate between a fast-moving
contact and a new contact. This problem cannot be fully resolved because
information is truly missing, but it is possible to safe-guard against
obvious mistakes by restricting movement with a maximum displacement.
The new problem formulation for dmax > 0 cannot benefit from the speedup
for positive definite matrices, but since the convergence is faster, the
result is about the same. For a handful of contacts, the latency difference
is truly negligible.
Suggested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Henrik Rydberg <rydberg@bitmath.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/mouse/cypress_ps2.c')
| -rw-r--r-- | drivers/input/mouse/cypress_ps2.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c index 8af34ffe208b..9118a1861a45 100644 --- a/drivers/input/mouse/cypress_ps2.c +++ b/drivers/input/mouse/cypress_ps2.c @@ -538,7 +538,7 @@ static void cypress_process_packet(struct psmouse *psmouse, bool zero_pkt) pos[i].y = contact->y; } - input_mt_assign_slots(input, slots, pos, n); + input_mt_assign_slots(input, slots, pos, n, 0); for (i = 0; i < n; i++) { contact = &report_data.contacts[i]; |