This is a note to let you know that I've just added the patch titled HID: multitouch: fix Asus ExpertBook P2 P2451FA trackpoint to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: hid-multitouch-fix-asus-expertbook-p2-p2451fa-trackp.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit f896480649e04f64a7d5b8e3e8dc21872708fd2e Author: José Expósito <jose.exposito89@xxxxxxxxx> Date: Mon Nov 28 17:57:05 2022 +0100 HID: multitouch: fix Asus ExpertBook P2 P2451FA trackpoint [ Upstream commit 4eab1c2fe06c98a4dff258dd64800b6986c101e9 ] The HID descriptor of this device contains two mouse collections, one for mouse emulation and the other for the trackpoint. Both collections get merged and, because the first one defines X and Y, the movemenent events reported by the trackpoint collection are ignored. Set the MT_CLS_WIN_8_FORCE_MULTI_INPUT class for this device to be able to receive its reports. This fix is similar to/based on commit 40d5bb87377a ("HID: multitouch: enable multi-input as a quirk for some devices"). Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/825 Reported-by: Akito <the@xxxxxxxxx> Tested-by: Akito <the@xxxxxxxxx> Signed-off-by: José Expósito <jose.exposito89@xxxxxxxxx> Signed-off-by: Jiri Kosina <jkosina@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 08462ac72b89..6b86d368d5e7 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -1965,6 +1965,10 @@ static const struct hid_device_id mt_devices[] = { HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_ELAN, 0x313a) }, + { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, + HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, + USB_VENDOR_ID_ELAN, 0x3148) }, + /* Elitegroup panel */ { .driver_data = MT_CLS_SERIAL, MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,