From: Benjamin Tissoires <redacted>
Win8 certification introduced the ability to transmit two X and two Y per
touch. The specification precises that it must be in an array, with a
report count == 2.
This test guarantees that we split the touches on the last element
in this array.
Signed-off-by: Benjamin Tissoires <redacted>
---
drivers/hid/hid-multitouch.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index e205d1e..3ee22ec 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -589,7 +589,10 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
return 0;
}
- if (usage->hid == td->last_slot_field)
+ if (usage->hid == td->last_slot_field &&
+ usage == &field->usage[field->maxusage - 1])
+ /* we only take into account the last report
+ * of a field if report_count > 1 */
mt_complete_slot(td);
if (field->index == td->last_field_index
--
1.7.7.6