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generic: backport the btusb ID for the Mercusys MA530 - #25210

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dangowrt:btusb-mercusys-ma530
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dangowrt:btusb-mercusys-ma530

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The Mercusys MA530 dongle (2c4e:0115) is a Realtek RTL8761BUV, but the 6.18 btusb quirks table does not list the ID, so the controller comes up without its firmware patch: HCI works, yet LE discovery never reports a single device. Backport the v7.2 commit that adds the ID with the Realtek and wideband speech flags.

@openwrt openwrt Bot added the kernel pull request/issue with Linux kernel related changes label Sep 15, 2026
@dangowrt
dangowrt force-pushed the btusb-mercusys-ma530 branch from f525f34 to 059f06d Compare September 15, 2026 22:12

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Reviewed 1 new commit.


Generated by Claude Code

{ USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },

/* Additional Realtek 8761BUV Bluetooth devices */
+ { USB_DEVICE(0x2c4e, 0x0115), .driver_info = BTUSB_REALTEK |

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nit: ten targets in main still set KERNEL_PATCHVER:=6.12, and the 6.12 quirks table has the same 8761BUV block without this ID, so the dongle stays broken there. Is dropping backport-6.12 intentional?


Generated by Claude Code

The Mercusys MA530 dongle (2c4e:0115) is a Realtek RTL8761BUV, but the
6.18 btusb quirks table does not list the ID, so the controller comes up
without its firmware patch: HCI works, yet LE discovery never reports a
single device. Backport the v7.2 commit that adds the ID with the
Realtek and wideband speech flags.

Signed-off-by: Daniel Golle <[email protected]>
@dangowrt
dangowrt force-pushed the btusb-mercusys-ma530 branch from 059f06d to 4f3cab1 Compare September 16, 2026 16:57
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