Bluetooth: btusb: Add support for Mercusys MA530 Bluetooth adapter

From 5d970b05c726749908540bf7d5ee34d634bf16c2 Mon Sep 17 00:00:00 2001
From: elespink <[email protected]>
Date: Sun, 31 Aug 2025 01:06:10 +0200
Subject: [PATCH] Bluetooth: btusb: Add support for Mercusys MA530 Bluetooth adapter

Add support for a Realtek-based Mercusys MA530 Bluetooth 5.3 USB dongle which works with USB ID 2c4e:0115. This device was not recognized by the kernel with the original device list and thus was non-functional.

The device is misreported in lsusb as "Mercucys INC Meucusys MA530 Adapter".
---
 drivers/bluetooth/btusb.c | 4 ++++

 1 file changed, 4 insertions(+)

index 8085fabadde8..94984791e454 100644
@@ -597,6 +597,10 @@ static const struct usb_device_id quirks_table[] = {

     { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), .driver_info = BTUSB_REALTEK },

+    /* Mercusys MA530 Adapter */
+    { USB_DEVICE(0x2c4e, 0x0115), .driver_info = BTUSB_REALTEK | +                             BTUSB_WIDEBAND_SPEECH }, +
     /* MediaTek Bluetooth devices */
     { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), .driver_info = BTUSB_MEDIATEK |

2.51.0

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Dear Submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
While preparing the CI tests, the patches you submitted couldn't be applied to the current HEAD of the repository.

----- Output -----

Please resolve the issue and submit the patches again.

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Regards,
Linux Bluetooth