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
next prev 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
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