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-rw-r--r--drivers/hid/hid-multitouch.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 3d664d01305e..351ddd297792 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -486,6 +486,11 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
mt_store_field(usage, td, hi);
return 1;
case HID_DG_CONFIDENCE:
+ if (cls->name == MT_CLS_WIN_8 &&
+ field->application == HID_DG_TOUCHPAD) {
+ cls->quirks &= ~MT_QUIRK_ALWAYS_VALID;
+ cls->quirks |= MT_QUIRK_VALID_IS_CONFIDENCE;
+ }
mt_store_field(usage, td, hi);
return 1;
case HID_DG_TIPSWITCH: