linux-kernel - [PATCH v1] HID: mf: add support for Legion Go dual dinput modes

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Message-ID: <20250803160253.12956-1-lkml@antheas.dev>
Date: Sun,  3 Aug 2025 18:02:53 +0200
From: Antheas Kapenekakis <lkml@...heas.dev>
To: linux-input@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	Jiri Kosina <jikos@...nel.org>,
	Benjamin Tissoires <bentiss@...nel.org>,
	Antheas Kapenekakis <lkml@...heas.dev>
Subject: [PATCH v1] HID: mf: add support for Legion Go dual dinput modes

The Legion Go features detachable controllers which support a dual
dinput mode. In this mode, the controllers appear under a single HID
device with two applications.

Currently, both controllers appear under the same event device, causing
their controls to be mixed up. This patch separates the two so that
they can be used independently.

In addition, the latest firmware update for the Legion Go swaps the IDs
to the ones used by the Legion Go 2, so add those IDs as well.

Signed-off-by: Antheas Kapenekakis <lkml@...heas.dev>
---
 drivers/hid/hid-ids.h    | 2 ++
 drivers/hid/hid-quirks.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 5a1096283855..f849b1c2efb9 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -834,6 +834,8 @@
 #define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6019	0x6019
 #define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_602E	0x602e
 #define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6093	0x6093
+#define USB_DEVICE_ID_LENOVO_LEGION_GO_DUAL_DINPUT	0x6184
+#define USB_DEVICE_ID_LENOVO_LEGION_GO2_DUAL_DINPUT	0x61ed
 
 #define USB_VENDOR_ID_LETSKETCH		0x6161
 #define USB_DEVICE_ID_WP9620N		0x4d15
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index ff11f1ad344d..88c89fe91689 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -124,6 +124,8 @@ static const struct hid_device_id hid_quirks[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_V2), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_PENSKETCH_T609A), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_ODDOR_HANDBRAKE), HID_QUIRK_ALWAYS_POLL },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_LEGION_GO_DUAL_DINPUT), HID_QUIRK_MULTI_INPUT },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_LEGION_GO2_DUAL_DINPUT), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_OPTICAL_USB_MOUSE_600E), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_608D), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6019), HID_QUIRK_ALWAYS_POLL },

base-commit: 186f3edfdd41f2ae87fc40a9ccba52a3bf930994
-- 
2.50.1