This is a note to let you know that I've just added the patch titled HID: multitouch: Add required quirk for Synaptics 0xcddc device to the 5.4-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-add-required-quirk-for-synaptics-0xcd.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 66a594ae6a5c6ad7ef51c8fd869805c9e678364e Author: Manuel Fombuena <fombuena@xxxxxxxxxxx> Date: Sun Feb 11 19:04:29 2024 +0000 HID: multitouch: Add required quirk for Synaptics 0xcddc device [ Upstream commit 1741a8269e1c51fa08d4bfdf34667387a6eb10ec ] Add support for the pointing stick (Accupoint) and 2 mouse buttons. Present on some Toshiba/dynabook Portege X30 and X40 laptops. It should close https://bugzilla.kernel.org/show_bug.cgi?id=205817 Signed-off-by: Manuel Fombuena <fombuena@xxxxxxxxxxx> Signed-off-by: Jiri Kosina <jkosina@xxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index c37399f61c67b..c3810e7140a55 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -2090,6 +2090,10 @@ static const struct hid_device_id mt_devices[] = { HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_SYNAPTICS, 0xcd7e) }, + { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, + HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, + USB_VENDOR_ID_SYNAPTICS, 0xcddc) }, + { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_SYNAPTICS, 0xce08) },