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HID: hid-multitouch: Fix contact count on 3M panels

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Some devices report the number of contacts via the unreliable
CONTACTCOUNT usage, rather than using the CONTACTMAX feature.
Without this patch, the 3M devices are constrained to the default
maximum of ten fingers.

Cc: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
This commit is contained in:
Henrik Rydberg 2012-09-05 16:58:12 +02:00
parent 3e1b5015d9
commit c5d40be5f5
1 changed files with 3 additions and 1 deletions
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4
drivers/hid/hid-multitouch.c
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@ -171,7 +171,9 @@ static struct mt_class mt_classes[] = {
MT_QUIRK_SLOT_IS_CONTACTID,
.sn_move = 2048,
.sn_width = 128,
.sn_height = 128 },
.sn_height = 128,
.maxcontacts = 60,
},
{ .name = MT_CLS_CYPRESS,
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
MT_QUIRK_CYPRESS,