Linux bluetooth development
 help / color / mirror / Atom feed
From: Sasha Levin <sashal@kernel.org>
To: patches@lists.linux.dev, stable@vger.kernel.org
Cc: Chen Zhang <zhangchen01@kylinos.cn>,
	Paul Menzel <pmenzel@molgen.mpg.de>,
	Luiz Augusto von Dentz <luiz.von.dentz@intel.com>,
	Sasha Levin <sashal@kernel.org>,
	marcel@holtmann.org, luiz.dentz@gmail.com,
	linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH AUTOSEL 6.18-6.12] Bluetooth: btusb: Add Realtek RTL8922AE VID/PID 0bda/d923
Date: Mon, 31 Aug 2026 09:30:13 -0400	[thread overview]
Message-ID: <20260831133314.4125787-585-sashal@kernel.org> (raw)
In-Reply-To: <20260831133314.4125787-1-sashal@kernel.org>

From: Chen Zhang <zhangchen01@kylinos.cn>

[ Upstream commit 5612ee230a33c450976c3bcaea174f1d816a2697 ]

Add the vendor/product ID (0x0bda, 0xd923) to usb_device_id table for
Realtek RTL8922AE.

The device info from /sys/kernel/debug/usb/devices as below.

T:  Bus=10 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12   MxCh= 0
D:  Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0bda ProdID=d923 Rev= 0.00
S:  Manufacturer=Realtek
S:  Product=Bluetooth Radio
S:  SerialNumber=00E04C885A01
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
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=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 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

Signed-off-by: Chen Zhang <zhangchen01@kylinos.cn>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

LLM Generated explanations, may be completely bogus:

Connection lost, reconnecting to https://agentn.us.api5.cursor.sh
(attempt 1)...
Retry attempt 1...
Connection lost, reconnecting to https://agentn.us.api5.cursor.sh
(attempt 2)...
Retry attempt 2...
**Verdict: YES** — backport to 6.18.y.

This is a 2-line USB device ID addition (`0x0bda:0xd923`) to the
existing `btusb` driver for Realtek RTL8922AE hardware. It fits the
standard stable exception for new device IDs: small, obviously correct,
and the prerequisites are already in your tree (RTL8922A support in
`btrtl.c`, the 8922AE quirks section in `btusb.c`).

Confirmed: neither `0xd922` nor `0xd923` is present in 6.18.44 yet. The
patch should apply cleanly by inserting the new entry after the existing
`0x8922` line rather than after `0xd922` (which mainline has but this
tree doesn't).

 drivers/bluetooth/btusb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 38a066cc3404a..502b2984d994a 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -604,6 +604,8 @@ static const struct usb_device_id quirks_table[] = {
 						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x0bda, 0xd922), .driver_info = BTUSB_REALTEK |
 						     BTUSB_WIDEBAND_SPEECH },
+	{ USB_DEVICE(0x0bda, 0xd923), .driver_info = BTUSB_REALTEK |
+						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
 						     BTUSB_WIDEBAND_SPEECH },
 	{ USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
-- 
2.53.0


  parent reply	other threads:[~2026-08-31 13:50 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20260831133314.4125787-1-sashal@kernel.org>
2026-08-31 13:21 ` [PATCH AUTOSEL 6.18-6.12] Bluetooth: btusb: Add support for Intel Lizard Peak 2 (0x8087:0x0040) Sasha Levin
2026-08-31 13:22 ` [PATCH AUTOSEL 6.18-5.10] Bluetooth: RFCOMM: validate skb length in rfcomm_recv_frame Sasha Levin
2026-08-31 13:23 ` [PATCH AUTOSEL 6.18-5.10] Bluetooth: L2CAP: validate connectionless PSM length Sasha Levin
2026-08-31 13:24 ` [PATCH AUTOSEL 6.18-6.1] Bluetooth: btusb: Add Mercusys MA530 for Realtek RTL8761BUV Sasha Levin
2026-08-31 13:25 ` [PATCH AUTOSEL 6.18] Bluetooth: btusb: MT7925: Add VID/PID 13d3/3609 Sasha Levin
2026-08-31 13:27 ` [PATCH AUTOSEL 6.18-6.1] Bluetooth: btusb: Add support for TP-Link TL-UB250 Sasha Levin
2026-08-31 13:27 ` [PATCH AUTOSEL 6.18-6.12] Bluetooth: btusb: MT7922: Add VID/PID 0e8d/223c Sasha Levin
2026-08-31 13:28 ` [PATCH AUTOSEL 6.18-6.12] Bluetooth: btintel_pcie: Add 50 ms delay before MAC init on BlazarIW Sasha Levin
2026-08-31 13:28 ` [PATCH AUTOSEL 6.18-6.12] Bluetooth: btusb: MT7925: Add VID/PID 0e8d/8c38 Sasha Levin
2026-08-31 13:28 ` [PATCH AUTOSEL 6.18-6.12] Bluetooth: btmtk: Disable remote wakeup for MT7922/MT7925 Sasha Levin
2026-08-31 13:29 ` [PATCH AUTOSEL 6.18-6.12] Bluetooth: btusb: Add Realtek RTL8922AE VID/PID 0bda/d922 Sasha Levin
2026-08-31 13:30 ` Sasha Levin [this message]
2026-08-31 13:30 ` [PATCH AUTOSEL 6.18-6.6] Bluetooth: btusb: Add TP-Link UB600 for Realtek 8761BUV Sasha Levin
2026-08-31 13:30 ` [PATCH AUTOSEL 6.18] Bluetooth: btrtl: fix RTL8761B/BU broken LE extended scan Sasha Levin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20260831133314.4125787-585-sashal@kernel.org \
    --to=sashal@kernel.org \
    --cc=linux-bluetooth@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=luiz.dentz@gmail.com \
    --cc=luiz.von.dentz@intel.com \
    --cc=marcel@holtmann.org \
    --cc=patches@lists.linux.dev \
    --cc=pmenzel@molgen.mpg.de \
    --cc=stable@vger.kernel.org \
    --cc=zhangchen01@kylinos.cn \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox