From 54f4c0c3e9d9ad50bf58a4f7c2bbdfb3fa4ab3a7 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Wed, 14 Nov 2012 16:59:17 +0100 Subject: [PATCH] HID: multitouch: support arrays for the split of the touches in a report 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 Reviewed-by: Henrik Rydberg Signed-off-by: Jiri Kosina --- 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 3687f797b731..3d2e6bbb0046 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -576,12 +576,15 @@ 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); + } } -- 2.20.1