Re: [RESEND PATCH v1] Bluetooth: btusb: MT7925: Add VID/PID 0e8d/8c38

Chris Lu (陸稚泓)
2026-04-10T08:34:28Z

Hi Luiz,

I wanted to kindly follow up on two patches about adding MediaTek's
Bluetooth ID to usb table in btusb driver.

"Bluetooth: btusb: MT7925: Add VID/PID 0e8d/8c38"
"Bluetooth: btusb: MT7922: Add VID/PID 0e8d/223c"

Is there any missing information I didn't provide or concerns that are
preventing these two changes from being processed?
Thanks a lot!

On Tue, 2026-04-07 at 14:51 +0800, Chris Lu wrote:
> Add VID 0e8d & PID 8c38 for MediaTek MT7925 USB Bluetooth chip.
>
> The information in /sys/kernel/debug/usb/devices about the Bluetooth
> device is listed as the below.
>
> T:  Bus=06 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480  MxCh= 0
> D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
> P:  Vendor=0e8d ProdID=8c38 Rev= 1.00
> S:  Manufacturer=MediaTek Inc.
> S:  Product=Wireless_Device
> S:  SerialNumber=000000000
> C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA
> A:  FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01
> I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
> E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=125us
> E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
> E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
> E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
> I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
> E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
> E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
> I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
> E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
> E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
> I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
> E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
> E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
> I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
> E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
> E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
> I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
> E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
> E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
> I:  If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
> E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
> E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms
> I:  If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
> E:  Ad=8a(I) Atr=03(Int.) MxPS=  64 Ivl=125us
> E:  Ad=0a(O) Atr=03(Int.) MxPS=  64 Ivl=125us
> I:* If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
> E:  Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us
> E:  Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us
>
> Signed-off-by: Chris Lu <chris.lu@mediatek.com>
> ---
>  drivers/bluetooth/btusb.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index a5e44887a5b5..0bd6254a2f63 100644
> --- a/drivers/bluetooth/btusb.c
> +++ b/drivers/bluetooth/btusb.c
> @@ -759,6 +759,8 @@ static const struct usb_device_id quirks_table[]
> = {
>
> BTUSB_WIDEBAND_SPEECH },
>   { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK
> |
>
> BTUSB_WIDEBAND_SPEECH },
> + { USB_DEVICE(0x0e8d, 0x8c38), .driver_info = BTUSB_MEDIATEK
> |
> +
> BTUSB_WIDEBAND_SPEECH },
>   { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK
> |
>
> BTUSB_WIDEBAND_SPEECH },
>   { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK
> |

Best Regards,
Chris Lu