linux-kernel - Re: [PATCH v1 1/2] Bluetooth: btusb: Add new VID/PID 0489/e135 for MT7920

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Message-ID: <632b054e-2c67-4d6d-9e61-435d1566fc4d@molgen.mpg.de>
Date: Wed, 1 Oct 2025 08:17:02 +0200
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Chris Lu <chris.lu@...iatek.com>
Cc: Marcel Holtmann <marcel@...tmann.org>,
 Johan Hedberg <johan.hedberg@...il.com>,
 Luiz Von Dentz <luiz.dentz@...il.com>, Sean Wang <sean.wang@...iatek.com>,
 Will Lee <will-cy.Lee@...iatek.com>, SS Wu <ss.wu@...iatek.com>,
 Steve Lee <steve.lee@...iatek.com>, linux-bluetooth@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v1 1/2] Bluetooth: btusb: Add new VID/PID 0489/e135 for
 MT7920

Dear Chris,


Thank you for your patch. In the summary *new* could be left out in the 
future. Maybe also put MT7920 in the front:

Bluetooth: btusb: MT7920: Add VID:PID 0489:e135


Am 01.10.25 um 08:04 schrieb Chris Lu:
> Add VID 0489 & PID e135 for MediaTek MT7920 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=0489 ProdID=e135 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=(none)
> 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=(none)
> E:  Ad=8a(I) Atr=03(Int.) MxPS=  64 Ivl=125us
> E:  Ad=0a(O) Atr=03(Int.) MxPS=  64 Ivl=125us
> 
> Signed-off-by: Chris Lu <chris.lu@...iatek.com>
> ---
>   drivers/bluetooth/btusb.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index 4be34c556db8..a2cde2284163 100644
> --- a/drivers/bluetooth/btusb.c
> +++ b/drivers/bluetooth/btusb.c
> @@ -621,6 +621,8 @@ static const struct usb_device_id quirks_table[] = {
>   	/* Additional MediaTek MT7920 Bluetooth devices */
>   	{ USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
>   						     BTUSB_WIDEBAND_SPEECH },
> +	{ USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK |
> +						     BTUSB_WIDEBAND_SPEECH },
>   	{ USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
>   						     BTUSB_WIDEBAND_SPEECH },
>   	{ USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |

Reviewed-by: Paul Menzel <pmenzel@...gen.mpg.de>


Kind regards,

Paul