Re: [PATCH 2/2] Bluetooth: btusb: Add USB device IDs for MediaTek MT7927 (MT6639)

[Javier Tia <floss@jetm.me>]

Hi Luiz,

On Thu, Mar 5, 2026 Luiz Augusto von Dentz wrote:
> Is the lsusb information for these devices present in the links? We
> normally require that to confirm these ID's are real/valid.

Yes. Here is lsusb -v from my ASUS ROG Crosshair X870E Hero
(0489:e13a):

  Bus 001 Device 005: ID 0489:e13a Foxconn / Hon Hai Wireless_Device
  Device Descriptor:
    idVendor           0x0489 Foxconn / Hon Hai
    idProduct          0xe13a Wireless_Device
    iManufacturer           5 MediaTek Inc.
    iProduct                6 Wireless_Device
    Interface Association:
      bFunctionClass        224 Wireless
      bFunctionSubClass       1 Radio Frequency
      bFunctionProtocol       1 Bluetooth

The other four USB IDs have been confirmed by users on their hardware
with lsusb output in the tracking issue and bugzilla:

  0489:e0fa - Lenovo Legion Pro 7 (kerberos272)
  0489:e10f - Gigabyte Z790 AORUS MASTER X (Thex-Thex)
  0489:e116 - TP-Link Archer TBE550E (marcin-fm)
  13d3:3588 - ASUS ProArt X870E-Creator (samutoljamo)

Each is documented in the GitHub tracking issue [1] and the upstream
bugzilla [2] with lsusb and dmesg output.

> Ok, this is especially valid if AI assisted, otherwise we would
> probably need to ensure the agent has access to every board to list
> its IDs, etc.
>
> Regarding the use of AI, there doesn't seem to be a global policy.
> However, for Bluetooth Im not inclined to accept any patches that
> hasn't been properly reviewed by the author

Understood. To be clear: I wrote and reviewed these patches myself.
Claude Code was used as a coding assistant (editor-level help, similar
to copilot), not as an autonomous agent. The Assisted-by trailer
follows the kernel coding-assistants policy from Documentation/
process/coding-assistants.rst.

I tested the patches on my own hardware (ASUS ROG Crosshair X870E
Hero, BT 0489:e13a, Arch Linux kernel 6.19.6). The USB IDs come from
real hardware reports by real users, not generated by AI. The patches
have been running as a DKMS out-of-tree module [1] since January 2026
across Arch, Ubuntu, Fedora, NixOS, and openSUSE.

Your feedback is being read and responded to by me personally.

[1] https://github.com/jetm/mediatek-mt7927-dkms
[2] https://bugzilla.kernel.org/show_bug.cgi?id=221096

Javier