linux-kernel - [PATCH] HID: multitouch: Enable multi-input for Synaptics pointstick/touchpad device

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Message-Id: <20201230124407.41186-1-kai.heng.feng@canonical.com>
Date:   Wed, 30 Dec 2020 20:44:07 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     jikos@...nel.org, benjamin.tissoires@...hat.com
Cc:     Kai-Heng Feng <kai.heng.feng@...onical.com>,
        linux-input@...r.kernel.org (open list:HID CORE LAYER),
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] HID: multitouch: Enable multi-input for Synaptics pointstick/touchpad device

Pointstick and its left/right buttons on HP EliteBook 850 G7 need
multi-input quirk to work correctly.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
---
 drivers/hid/hid-multitouch.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index d670bcd57bde..0743ef51d3b2 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -2054,6 +2054,10 @@ static const struct hid_device_id mt_devices[] = {
 		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
 			USB_VENDOR_ID_SYNAPTICS, 0xce08) },
 
+	{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			USB_VENDOR_ID_SYNAPTICS, 0xce09) },
+
 	/* TopSeed panels */
 	{ .driver_data = MT_CLS_TOPSEED,
 		MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
-- 
2.29.2