[PATCH AUTOSEL 5.4 06/25] HID: multitouch: Fix Iiyama ProLite T1931SAW (0eef:0001 again!)

Sasha Levin
2021-11-30T15:05:55Z

From: Ondrej Zary <linux@zary.sk>

[ Upstream commit 32bea35746097985c48cec836d5f557a3b66b60a ]

Iiyama ProLite T1931SAW does not work with Linux - input devices are
created but cursor does not move.

It has the infamous 0eef:0001 ID which has been reused for various
devices before.

It seems to require export_all_inputs = true.

Hopefully there are no HID devices using this ID that will break.
It should not break non-HID devices (handled by usbtouchscreen).

Signed-off-by: Ondrej Zary <linux@zary.sk>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hid/hid-multitouch.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 37270b8f4e58b..fe994bfddcd38 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1887,6 +1887,11 @@ static const struct hid_device_id mt_devices[] = {
MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
USB_DEVICE_ID_CVTOUCH_SCREEN) },

+ /* eGalax devices (SAW) */
+ { .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
+ MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+ USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER) },
+
/* eGalax devices (resistive) */
{ .driver_data = MT_CLS_EGALAX,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
--
2.33.0