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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>
This commit is contained in:
Benjamin Tissoires 2012-11-14 16:59:17 +01:00 committed by Jiri Kosina
parent f262d1fa2c
commit 54f4c0c3e9
1 changed files with 8 additions and 5 deletions
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13
drivers/hid/hid-multitouch.c
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@ -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 (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);
if (field->index == td->last_field_index
&& td->num_received >= td->num_expected)
mt_sync_frame(td, field->hidinput->input);
}
}