Commit 54f4c0c3 authored Nov 14, 2012 by Benjamin Tissoires Committed by Jiri Kosina Nov 15, 2012

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 <benjamin.tissoires@gmail.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

parent f262d1fa

drivers/hid/hid-multitouch.c

+9 −6

Original line number	Diff line number	Diff line
		@@ -576,12 +576,15 @@ static int mt_event(struct hid_device hid, struct hid_field field,
		return 0;
		}

		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);
		}

		}