This is a note to let you know that I've just added the patch titled
HID: multitouch: Add required quirk for Synaptics 0xcd7e 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 bf165662e1c2989628ddda89af2dd4089f7f2f40
Author: Rahul Rameshbabu <sergeantsagara@xxxxxxxxxxxxxx>
Date: Sun Sep 17 16:18:43 2023 +0000
HID: multitouch: Add required quirk for Synaptics 0xcd7e device
[ Upstream commit 1437e4547edf41689d7135faaca4222ef0081bc1 ]
Register the Synaptics device as a special multitouch device with certain
quirks that may improve usability of the touchpad device.
Reported-by: Rain <rain@xxxxxxxxxxxxx>
Closes: https://lore.kernel.org/linux-input/2bbb8e1d-1793-4df1-810f-cb0137341ff4@xxxxxxxxxxxxxxxx/
Signed-off-by: Rahul Rameshbabu <sergeantsagara@xxxxxxxxxxxxxx>
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 0893b31e6f102..590b25460456b 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -2081,6 +2081,10 @@ static const struct hid_device_id mt_devices[] = {
USB_DEVICE_ID_MTP_STM)},
/* Synaptics devices */
+ { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
+ 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, 0xce08) },
