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@xxxxxxxxx> --- 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 c4acdd0..8d0a9f9 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -317,6 +317,7 @@ 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; -- 1.8.1 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
