The touchpad on the Dell Venue 11 Pro 7130's keyboard-dock is multi-touch
capable, using HID_GROUP_MULTITOUCH_WIN_8 and the hid-multitouch driver
correctly binds to it.
But instead of getting multi-touch HID input reports we still get mouse
input reports and corresponding linux input (evdev) node events.
Unloading and reloading the hid-multitouch driver works around this.
Adding the MT_QUIRK_FORCE_GET_FEATURE quirk to the MT_CLS_WIN_8 quirks
makes the driver work correctly the first time it is loaded.
I've chosen to add this quirk to the generic MT_CLS_WIN_8 quirks
because it seems unlikely that this quirk will causes problems for
other MT_CLS_WIN_8 devices and if this device needs it other Win 8
compatible devices might need it too.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
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 362805ddf377..f9c0429e7348 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -265,6 +265,7 @@ static const struct mt_class mt_classes[] = {
MT_QUIRK_IGNORE_DUPLICATES |
MT_QUIRK_HOVERING |
MT_QUIRK_CONTACT_CNT_ACCURATE |
+ MT_QUIRK_FORCE_GET_FEATURE |
MT_QUIRK_STICKY_FINGERS |
MT_QUIRK_WIN8_PTP_BUTTONS,
.export_all_inputs = true },
--
2.26.0
