From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793829742; b=TQu7//FvGLTenvKVss5T9aRfpV/F4GyLsNmHye7ZKsz5XLqjasvypeMmwDMr3Sk3DT/i w5z2FVcviBnrIDsRIPLo+Zk8mLwPuhOjauTVs4xSV81UMgDcomDGp1ucUzM6XzTHzTjvr njk7D8toxCFQYEavOSYQcP4aTxF93eniPLcYICqEcMvTmeLu6YSBMht70fB9ycAfX9RT+ 8fY9zRMHP/fBmVgKKKie25wvaIAXnBDfvFv9dG16kj4NZ1fn91hXRiKgjW0kesF6UZ1Qc z0OlkoyKR516xt/z2OymV0e7PpkWRkwoeDFTdeEbGBeymIITKihPAgmGm50aJX58CJw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793829742; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=86hB8Qx5uFRRlpNPePmcDZ9Y1r+kkpo0SdqtSIbhCD0=; b=Y6rCJYOsmCxHDR3h5iNx3ZQdqQEr2izaPjvJUa+h2sW+yA51Ji+EE2bOtM/53mpCW6t7 q18K+f/oYSGN4szW2f/fO88RG5UZBRCRW7m0g+6tEtZmBk3zWl4l5y9gHKqczeotNf4q5 jvOBq5+L8Pq64nEfiWgKgzimDlRn7EXw/5O2tpI+l0ByO4838mlcAm6DLBmKGd6OjtEN/ SImSDfbyRKX2FbGYu8GmNkqgmDizePSTWKhJ/UiisvPJ6bv6UCxyiwMSKNoU8SUR+IQqg d78b8LoEz1XwIF2Q1ZY2dDIN+d9P6wOrL99l/EMp2oJwg7cCWD9gA8AfFvcVvIEc6sw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=lASqwpjZ; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4E218606BA25; Wed, 4 Nov 2026 22:02:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=lASqwpjZ Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95FAB1F00A15; Wed, 4 Nov 2026 22:02:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793829741; bh=86hB8Qx5uFRRlpNPePmcDZ9Y1r+kkpo0SdqtSIbhCD0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=lASqwpjZ984Ut439RjMeW5rnDIkgLxfih6R6Pfu9MF4vs8jjmmodhDsGrIIRvImBU EnCi45m9GKMirI1xOHbU4gxUJJ34mBhmZAsaX0e0m+yUrMPIJuAK5dhr+NJonTLou6 qjmSUjBAF6/oikXOjqjikslf0gIH4bHLdgrrVbkU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Aaron Ma , Jiri Kosina , Sasha Levin Subject: [PATCH 6.18 0315/1005] HID: quirks: Add ALWAYS_POLL quirk for Beitong BTP-KP20D dongle Date: Wed, 4 Nov 2026 16:00:48 -0500 Message-ID: <20261104211052.760644039@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261104211043.516122098@linuxfoundation.org> References: <20261104211043.516122098@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Aaron Ma [ Upstream commit bfff246b3a31cb45ec297ca5e2a77c1410b207ac ] 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 Signed-off-by: Sasha Levin --- 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 a9db2b30be9bd..c1a7f5558ccd1 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -262,6 +262,9 @@ #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 9d18b962e0ea6..3de594ee25c38 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 }, -- 2.53.0