From bfff246b3a31cb45ec297ca5e2a77c1410b207ac Mon Sep 17 00:00:00 2001 From: Aaron Ma Date: Mon, 3 Aug 2026 13:39:32 +0800 Subject: [PATCH] HID: quirks: Add ALWAYS_POLL quirk for Beitong BTP-KP20D dongle The BTP-KP20D dongle in Direct/HID mode (20dd:5159) re-enumerates every few seconds because usbhid never submits its interrupt-IN URB: no HID driver binds to the vendor-specific report descriptor, so the device is never opened, and the firmware treats the idle endpoint as a lost link. Add HID_QUIRK_ALWAYS_POLL to keep the interrupt-IN URB submitted from probe time. Signed-off-by: Aaron Ma Signed-off-by: Jiri Kosina --- drivers/hid/hid-ids.h | 3 +++ drivers/hid/hid-quirks.c | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 0089a5e88ec9..fa0a5ed114ef 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -263,6 +263,9 @@ #define USB_VENDOR_ID_BAANTO 0x2453 #define USB_DEVICE_ID_BAANTO_MT_190W2 0x0100 +#define USB_VENDOR_ID_BEITONG 0x20dd +#define USB_DEVICE_ID_BEITONG_KP20D 0x5159 + #define USB_VENDOR_ID_BELKIN 0x050d #define USB_DEVICE_ID_FLIP_KVM 0x3201 diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index 57d8efdd9b89..63283eb853f0 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -45,6 +45,7 @@ static const struct hid_device_id hid_quirks[] = { { HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS682), HID_QUIRK_NOGET }, { HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS692), HID_QUIRK_NOGET }, { HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM), HID_QUIRK_NOGET }, + { HID_USB_DEVICE(USB_VENDOR_ID_BEITONG, USB_DEVICE_ID_BEITONG_KP20D), HID_QUIRK_ALWAYS_POLL }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH), HID_QUIRK_MULTI_INPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2), HID_QUIRK_ALWAYS_POLL },