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Sun, 29 Mar 2026 01:13:31 -0700 (PDT) Received: from archlinux.kangaroo-newton.ts.net ([185.213.155.209]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48730688605sm152294615e9.10.2026.03.29.01.13.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 29 Mar 2026 01:13:31 -0700 (PDT) From: Christos Longros To: Marcel Holtmann , Luiz Augusto von Dentz Cc: linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, Christos Longros Subject: [PATCH] Bluetooth: btusb: add Realtek RTL8852CE device ID 0x0852 Date: Sun, 29 Mar 2026 10:13:24 +0200 Message-ID: <20260329081324.123156-1-chris.longros@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add the native Realtek vendor device ID (0bda:0852) for the RTL8852CE Bluetooth radio to the btusb device table. Without this entry the device is matched only by the generic Bluetooth class rule (USB_INTERFACE_INFO 0xe0/0x01/0x01), which means btusb binds but without the BTUSB_REALTEK flag. This skips Realtek-specific firmware loading, event handling, and wideband speech support. Tested on a Gigabyte B650 Gaming X AX V2 with the onboard RTL8852CE combo WiFi/BT card (USB ID 0bda:0852). Signed-off-by: Christos Longros --- drivers/bluetooth/btusb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 5c535f3ab..0bc77b29b 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -549,6 +549,8 @@ static const struct usb_device_id quirks_table[] =3D { BTUSB_WIDEBAND_SPEECH }, =20 /* Realtek 8852CE Bluetooth devices */ + { USB_DEVICE(0x0bda, 0x0852), .driver_info =3D BTUSB_REALTEK | + BTUSB_WIDEBAND_SPEECH }, { USB_DEVICE(0x04ca, 0x4007), .driver_info =3D BTUSB_REALTEK | BTUSB_WIDEBAND_SPEECH }, { USB_DEVICE(0x04c5, 0x1675), .driver_info =3D BTUSB_REALTEK | --=20 2.53.0