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[PATCH] Input: synaptics - Add LEN205b entry to smbus_pnp_ids for ThinkPad T490

From: Lovekesh Solanki <hidden>
Date: 2026-09-20 20:13:24
Also in: lkml
Subsystem: input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers: Dmitry Torokhov, Linus Torvalds

Lenovo ThinkPad T490 has a Synaptics Touchpad that supports SMBus/RMI4
mode, but is not listed in smbus_pnp_ids table.

Add LEN205b to smbus_pnp_ids[] passlist.

Reported-by: John Rosencutter <redacted>
Closes: https://lore.kernel.org/all/CAOGuaRh025eKcBf9P8UrvtXNp68vQ0HVF2EbNMp-kpdaC1HNpA@mail.gmail.com/ (local)
Signed-off-by: Lovekesh Solanki <redacted>
---
 drivers/input/mouse/synaptics.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 2170bbe4c589..14484164f067 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -192,6 +192,7 @@ static const char * const smbus_pnp_ids[] = {
 	"LEN2054", /* E480 */
 	"LEN2055", /* E580 */
 	"LEN2058", /* E490 */
+	"LEN205b", /* T490 */
 	"LEN2068", /* T14 Gen 1 */
 	"SYN1221", /* TUXEDO InfinityBook Pro 14 v5 */
 	"SYN3003", /* HP EliteBook 850 G1 */
-- 
2.55.0
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