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From: Quentin Strydom <qstrydom0@gmail.com>
To: Marcel Holtmann <marcel@holtmann.org>,
	Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Cc: linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org,
	Quentin Strydom <qstrydom0@gmail.com>
Subject: [PATCH] Bluetooth: btusb: add ASUS 0b05:1868 to QCA Rome quirks
Date: Mon, 28 Sep 2026 15:36:55 +0100	[thread overview]
Message-ID: <20260928143655.22223-1-qstrydom0@gmail.com> (raw)

The Bluetooth controller with USB ID 0b05:1868 found on ASUS
systems uses a Qualcomm QCA Rome chipset, but is currently matched
only by the generic Bluetooth USB entry.

Without BTUSB_QCA_ROME, the driver does not load the QCA rampatch and
NVM firmware. BLE scanning also repeatedly reports:

    Bluetooth: hci0: unexpected event for opcode 0x2005

Mark the device as BTUSB_QCA_ROME with wideband speech support, in
line with the other QCA Rome USB IDs.

With the quirk applied, btusb loads:

    qca/rampatch_usb_00000302.bin
    qca/nvm_usb_00000302.bin

and the unexpected LE Set Random Address completion events are no
longer observed.

Tested-on: ASUS USB 0b05:1868, QCA Rome 0x302

Signed-off-by: Quentin Strydom <qstrydom0@gmail.com>
---
 drivers/bluetooth/btusb_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/bluetooth/btusb_main.c b/drivers/bluetooth/btusb_main.c
index be47ac894b6c..1ede12515bcc 100644
--- a/drivers/bluetooth/btusb_main.c
+++ b/drivers/bluetooth/btusb_main.c
@@ -273,6 +273,8 @@ static const struct usb_device_id quirks_table[] = {
 	{ USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 
 	/* QCA ROME chipset */
+	{ USB_DEVICE(0x0b05, 0x1868), .driver_info = BTUSB_QCA_ROME |
+						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
 						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
-- 
2.43.0


             reply	other threads:[~2026-09-28 14:37 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-28 14:36 Quentin Strydom [this message]
2026-09-28 15:40 ` patchwork-bot+bluetooth

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