Messages in this thread Patch in this message | | | From | "benjamin.tissoires" <> | Subject | [PATCH 3/5] HID: hid-multitouch: support arrays for the split of the touches in a report | Date | Fri, 4 May 2012 14:53:48 +0200 |
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From: Benjamin Tissoires <benjamin.tissoires@enac.fr>
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 <benjamin.tissoires@enac.fr> --- 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
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