From: Liang Haowen <nbg2974@gmail.com>
To: linux-input@vger.kernel.org
Cc: jikos@kernel.org, bentiss@kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] HID: add ALWAYS_POLL quirk for YJX-CHIP EWEADN wireless receivers
Date: Mon, 12 Oct 2026 23:42:40 +0800 [thread overview]
Message-ID: <20261012154240.33221-1-nbg2974@gmail.com> (raw)
The 2.4 GHz receiver in EWEADN G5 wireless mice (YJX-CHIP A8A5:2255)
presents its mouse data on a standard interrupt IN endpoint. usbhid
only submits read URBs for an input device while a userspace consumer
holds it open, so on boot or replug the mouse pointer stays dead until
something opens the node.
The same receiver ships with a number of other EWEADN models (A6, A7,
E7, E9, E11, G2SE A, GS02 Pro, S7, S9SE, X23), so the quirk covers
the whole family.
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <bentiss@kernel.org>
Cc: linux-input@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Liang Haowen <nbg2974@gmail.com>
---
drivers/hid/hid-ids.h | 3 +++
drivers/hid/hid-quirks.c | 2 ++
2 files changed, 5 insertions(+)
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index cb7f16d..1ccdfa5 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -1633,6 +1633,9 @@
#define USB_VENDOR_ID_YEALINK 0x6993
#define USB_DEVICE_ID_YEALINK_P1K_P4K_B2K 0xb001
+#define USB_VENDOR_ID_YJXCHIP 0xa8a5
+#define USB_DEVICE_ID_YJXCHIP_MOUSE 0x2255
+
#define USB_VENDOR_ID_ZEROPLUS 0x0c12
#define USB_VENDOR_ID_ZYDACRON 0x13EC
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 96a36c5..92bd84e 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -222,6 +222,8 @@ static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE), HID_QUIRK_MULTI_INPUT },
+ { HID_USB_DEVICE(USB_VENDOR_ID_YJXCHIP, USB_DEVICE_ID_YJXCHIP_MOUSE),
+ HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_GROUP_AUDIO), HID_QUIRK_NOGET },
{ 0 }
--
2.55.0
reply other threads:[~2026-10-12 15:42 UTC|newest]
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