From 5d970b05c726749908540bf7d5ee34d634bf16c2 Mon Sep 17 00:00:00 2001
From: elespink <elespink@gmail.com>
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(+)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 8085fabadde8..94984791e454 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -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