From c629dd7eb3b43bb09eecb035f016bdca32dc8acf Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Thu, 31 Jan 2013 17:22:26 +0100 Subject: [PATCH] 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 Signed-off-by: Jiri Kosina --- drivers/hid/hid-multitouch.c | 1 + 1 file changed, 1 insertion(+) 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; -- GitLab