Win8 certification introduced the ability to transmit two X and two Y per
touch. The specification precises that it must be used in an array.
This test guarantees that we split the touches on the last element
in this array.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxx>
Reviewed-by: Henrik Rydberg <rydberg@xxxxxxxxxxx>
---
drivers/hid/hid-multitouch.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 9f64e36..a6a4e0a 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -577,12 +577,15 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
return 0;
}
- if (usage->hid == td->last_slot_field)
- mt_complete_slot(td, field->hidinput->input);
-
- if (field->index == td->last_field_index
- && td->num_received >= td->num_expected)
- mt_sync_frame(td, field->hidinput->input);
+ if (usage->usage_index + 1 == field->report_count) {
+ /* we only take into account the last report. */
+ if (usage->hid == td->last_slot_field)
+ mt_complete_slot(td, field->hidinput->input);
+
+ if (field->index == td->last_field_index
+ && td->num_received >= td->num_expected)
+ mt_sync_frame(td, field->hidinput->input);
+ }
}
--
1.8.0
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