|
 |
98ef9c8 |
From 37e81f1a82ba4f214c05c4cc3807378753c7a867 Mon Sep 17 00:00:00 2001
|
|
|
98ef9c8 |
From: Allen Hung <allen_hung@dell.com>
|
|
|
98ef9c8 |
Date: Fri, 20 Nov 2015 18:21:06 +0800
|
|
|
98ef9c8 |
Subject: [PATCH] HID: multitouch: enable palm rejection if device implements
|
|
|
98ef9c8 |
confidence usage
|
|
|
98ef9c8 |
|
|
|
98ef9c8 |
The usage Confidence is mandary to Windows Precision Touchpad devices. The
|
|
|
98ef9c8 |
appearance of this usage is checked in hidinput_connect but the quirk
|
|
|
98ef9c8 |
MT_QUIRK_VALID_IS_CONFIDENCE is not applied to device accordingly.
|
|
|
98ef9c8 |
Apply this quirk and also remove quirk MT_QUIRK_ALWAYS_VALID to enable palm
|
|
|
98ef9c8 |
rejection for the WIN 8 touchpad devices which have implemented usage
|
|
|
98ef9c8 |
Confidence in its input reports.
|
|
|
98ef9c8 |
|
|
|
98ef9c8 |
Tested on Dell XPS 13 laptop.
|
|
|
98ef9c8 |
|
|
|
98ef9c8 |
Signed-off-by: Allen Hung <allen_hung@dell.com>
|
|
|
98ef9c8 |
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
|
|
|
98ef9c8 |
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
|
|
98ef9c8 |
---
|
|
|
98ef9c8 |
drivers/hid/hid-multitouch.c | 5 +++++
|
|
|
98ef9c8 |
1 file changed, 5 insertions(+)
|
|
|
98ef9c8 |
|
|
|
98ef9c8 |
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
|
|
|
98ef9c8 |
index 7c811252c1ce..0c94348a168d 100644
|
|
|
98ef9c8 |
--- a/drivers/hid/hid-multitouch.c
|
|
|
98ef9c8 |
+++ b/drivers/hid/hid-multitouch.c
|
|
|
98ef9c8 |
@@ -448,6 +448,11 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
|
|
|
98ef9c8 |
mt_store_field(usage, td, hi);
|
|
|
98ef9c8 |
return 1;
|
|
|
98ef9c8 |
case HID_DG_CONFIDENCE:
|
|
|
98ef9c8 |
+ if (cls->name == MT_CLS_WIN_8 &&
|
|
|
98ef9c8 |
+ field->application == HID_DG_TOUCHPAD) {
|
|
|
98ef9c8 |
+ cls->quirks &= ~MT_QUIRK_ALWAYS_VALID;
|
|
|
98ef9c8 |
+ cls->quirks |= MT_QUIRK_VALID_IS_CONFIDENCE;
|
|
|
98ef9c8 |
+ }
|
|
|
98ef9c8 |
mt_store_field(usage, td, hi);
|
|
|
98ef9c8 |
return 1;
|
|
|
98ef9c8 |
case HID_DG_TIPSWITCH:
|
|
|
98ef9c8 |
--
|
|
|
98ef9c8 |
2.5.0
|
|
|
98ef9c8 |
|