linux-kernel - Re: [PATCH] Bluetooth: btusb: Add USB ID 2001:332a for D-Link AX9U rev. A1

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Message-ID: <947f69ec-c66d-4182-aa96-e3e320760131@molgen.mpg.de>
Date: Sat, 26 Jul 2025 00:01:36 +0200
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Zenm Chen <zenmchen@...il.com>
Cc: linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
 marcel@...tmann.org, luiz.dentz@...il.com, pkshih@...ltek.com,
 hildawu@...ltek.com, max.chou@...ltek.com, rtl8821cerfe2@...il.com,
 usbwifi2024@...il.com, stable@...r.kernel.org
Subject: Re: [PATCH] Bluetooth: btusb: Add USB ID 2001:332a for D-Link AX9U
 rev. A1

Dear Chen,


Thank you for your patch.

Am 25.07.25 um 18:14 schrieb Zenm Chen:
> Add USB ID 2001:332a for D-Link AX9U rev. A1 which is based on a Realtek
> RTL8851BU chip.
> 
> The information in /sys/kernel/debug/usb/devices about the Bluetooth
> device is listed as the below:
> 
> T:  Bus=03 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#=  2 Spd=480  MxCh= 0
> D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
> P:  Vendor=2001 ProdID=332a Rev= 0.00
> S:  Manufacturer=Realtek
> S:  Product=802.11ax WLAN Adapter
> S:  SerialNumber=00e04c000001
> C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=500mA
> A:  FirstIf#= 0 IfCount= 2 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=1ms
> E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=82(I) 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=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
> E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
> E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
> E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
> E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
> E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
> E:  Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms
> E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
> I:* If#= 2 Alt= 0 #EPs= 8 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtw89_8851bu_git
> E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=0b(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=0c(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> 
> Cc: stable@...r.kernel.org # 6.12.x
> Signed-off-by: Zenm Chen <zenmchen@...il.com>
> ---
>   drivers/bluetooth/btusb.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index 8085fabad..3595a8bad 100644
> --- a/drivers/bluetooth/btusb.c
> +++ b/drivers/bluetooth/btusb.c
> @@ -522,6 +522,8 @@ static const struct usb_device_id quirks_table[] = {
>   	/* Realtek 8851BU Bluetooth devices */
>   	{ USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK |
>   						     BTUSB_WIDEBAND_SPEECH },
> +	{ USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK |
> +						     BTUSB_WIDEBAND_SPEECH },

I’d sort according to `USB_DEVICE(0x2001`.

>   
>   	/* Realtek 8852AE Bluetooth devices */
>   	{ USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |

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


Kind regards,

Paul