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authorBenjamin Tissoires <benjamin.tissoires@gmail.com>2013-01-31 17:22:26 +0100
committerJiri Kosina <jkosina@suse.cz>2013-02-05 12:07:40 +0100
commitc629dd7eb3b43bb09eecb035f016bdca32dc8acf (patch)
tree038e39325db18bb77ad5c63e3cf231fea0847f1c /drivers/hid/hid-multitouch.c
parentc2517f62dac608e43b652dc6ed1e478e8447e029 (diff)
HID: multitouch: fix Win8 protocol for Sharp like devices
The Sharp LC-20FE1-W screen (04dd:9681) behaves like the Nexio 42". It may report out of ranges values that are filtered out by relying on the Contact Count HID field. Adding the quirk MT_QUIRK_CONTACT_CNT_ACCURATE makes hid-multitouch strongest against this kind of device, without breaking the current devices. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-multitouch.c')
-rw-r--r--drivers/hid/hid-multitouch.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 87690e2726ac..1cf676d93049 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -311,6 +311,7 @@ static void mt_feature_mapping(struct hid_device *hdev,
*quirks |= MT_QUIRK_ALWAYS_VALID;
*quirks |= MT_QUIRK_IGNORE_DUPLICATES;
*quirks |= MT_QUIRK_HOVERING;
+ *quirks |= MT_QUIRK_CONTACT_CNT_ACCURATE;
*quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
*quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
*quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;