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Message-ID: <20251103121646.202256-1-naoki25519@gmail.com>
Date: Mon, 3 Nov 2025 21:16:45 +0900
From: Naoki Ueki <naoki25519@...il.com>
To: Jiri Kosina <jikos@...nel.org>,
Benjamin Tissoires <bentiss@...nel.org>
Cc: Naoki Ueki <naoki25519@...il.com>,
linux-input@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] HID: elecom: Add support for ELECOM M-XT3URBK (018F)
The ELECOM M-XT3URBK trackball has an additional device ID (0x018F), which
shares the same report descriptor as the existing device (0x00FB). However,
the driver does not currently recognize this new ID, resulting in only five
buttons being functional.
This patch adds the new device ID so that all six buttons work properly.
Signed-off-by: Naoki Ueki <naoki25519@...il.com>
---
drivers/hid/hid-elecom.c | 6 ++++--
drivers/hid/hid-ids.h | 3 ++-
drivers/hid/hid-quirks.c | 3 ++-
3 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/hid/hid-elecom.c b/drivers/hid/hid-elecom.c
index 69771fd35006..981d1b6e9658 100644
--- a/drivers/hid/hid-elecom.c
+++ b/drivers/hid/hid-elecom.c
@@ -75,7 +75,8 @@ static const __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
*/
mouse_button_fixup(hdev, rdesc, *rsize, 20, 28, 22, 14, 8);
break;
- case USB_DEVICE_ID_ELECOM_M_XT3URBK:
+ case USB_DEVICE_ID_ELECOM_M_XT3URBK_00FB:
+ case USB_DEVICE_ID_ELECOM_M_XT3URBK_018F:
case USB_DEVICE_ID_ELECOM_M_XT3DRBK:
case USB_DEVICE_ID_ELECOM_M_XT4DRBK:
/*
@@ -119,7 +120,8 @@ static const __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
static const struct hid_device_id elecom_devices[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XGL20DLBK) },
- { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK_00FB) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK_018F) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT4DRBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 0723b4b1c9ec..2245d85cacf5 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -449,7 +449,8 @@
#define USB_VENDOR_ID_ELECOM 0x056e
#define USB_DEVICE_ID_ELECOM_BM084 0x0061
#define USB_DEVICE_ID_ELECOM_M_XGL20DLBK 0x00e6
-#define USB_DEVICE_ID_ELECOM_M_XT3URBK 0x00fb
+#define USB_DEVICE_ID_ELECOM_M_XT3URBK_00FB 0x00fb
+#define USB_DEVICE_ID_ELECOM_M_XT3URBK_018F 0x018f
#define USB_DEVICE_ID_ELECOM_M_XT3DRBK 0x00fc
#define USB_DEVICE_ID_ELECOM_M_XT4DRBK 0x00fd
#define USB_DEVICE_ID_ELECOM_M_DT1URBK 0x00fe
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index bcd4bccf1a7c..5ec5eded5f0b 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -410,7 +410,8 @@ static const struct hid_device_id hid_have_special_driver[] = {
#if IS_ENABLED(CONFIG_HID_ELECOM)
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XGL20DLBK) },
- { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK_00FB) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK_018F) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT4DRBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) },
--
2.51.2
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