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authorJosé Expósito <jose.exposito89@gmail.com>2021-10-01 20:25:14 +0300
committerJiri Kosina <jkosina@suse.cz>2021-10-07 15:05:30 +0300
commit08b9a61a87bc339a73c584d8924c86ab36d204a7 (patch)
treea53fb19aed17a937a43d6c871ee792139ff8ce0a /drivers/hid/hid-multitouch.c
parent88a04049c08cd62e698bc1b1af2d09574b9e0aee (diff)
downloadlinux-08b9a61a87bc339a73c584d8924c86ab36d204a7.tar.xz
HID: multitouch: disable sticky fingers for UPERFECT Y
When a finger is on the screen, the UPERFECT Y portable touchscreen monitor reports a contact in the first place. However, after this initial report, contacts are not reported at the refresh rate of the screen as required by the Windows 8 specs. This behaviour triggers the release_timer, removing the fingers even though they are still present. To avoid it, add a new class, similar to MT_CLS_WIN_8 but without the MT_QUIRK_STICKY_FINGERS quirk for this device. Suggested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: José Expósito <jose.exposito89@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.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 3ea7cb1cda84..e1afddb7b33d 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -193,6 +193,7 @@ static void mt_post_parse(struct mt_device *td, struct mt_application *app);
/* reserved 0x0014 */
#define MT_CLS_WIN_8_FORCE_MULTI_INPUT 0x0015
#define MT_CLS_WIN_8_DISABLE_WAKEUP 0x0016
+#define MT_CLS_WIN_8_NO_STICKY_FINGERS 0x0017
/* vendor specific classes */
#define MT_CLS_3M 0x0101
@@ -294,6 +295,13 @@ static const struct mt_class mt_classes[] = {
MT_QUIRK_WIN8_PTP_BUTTONS |
MT_QUIRK_DISABLE_WAKEUP,
.export_all_inputs = true },
+ { .name = MT_CLS_WIN_8_NO_STICKY_FINGERS,
+ .quirks = MT_QUIRK_ALWAYS_VALID |
+ MT_QUIRK_IGNORE_DUPLICATES |
+ MT_QUIRK_HOVERING |
+ MT_QUIRK_CONTACT_CNT_ACCURATE |
+ MT_QUIRK_WIN8_PTP_BUTTONS,
+ .export_all_inputs = true },
/*
* vendor specific classes
@@ -2120,6 +2128,11 @@ static const struct hid_device_id mt_devices[] = {
MT_USB_DEVICE(USB_VENDOR_ID_VTL,
USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
+ /* Winbond Electronics Corp. */
+ { .driver_data = MT_CLS_WIN_8_NO_STICKY_FINGERS,
+ HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
+ USB_VENDOR_ID_WINBOND, USB_DEVICE_ID_TSTP_MTOUCH) },
+
/* Wistron panels */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,