* [Bug 220815] New: btusb: Add Realtek RTL8852CE device ID (13d3:3612)
@ 2025-11-30 6:58 bugzilla-daemon
2025-11-30 12:41 ` [Bug 220815] " bugzilla-daemon
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: bugzilla-daemon @ 2025-11-30 6:58 UTC (permalink / raw)
To: linux-bluetooth
https://bugzilla.kernel.org/show_bug.cgi?id=220815
Bug ID: 220815
Summary: btusb: Add Realtek RTL8852CE device ID (13d3:3612)
Product: Drivers
Version: 2.5
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: Bluetooth
Assignee: linux-bluetooth@vger.kernel.org
Reporter: azureller1@gmail.com
Regression: No
The Realtek RTL8852CE combo WiFi/Bluetooth chip in the ASUS TUF Gaming A16
(2025) FA608 series laptops has a Bluetooth device that is not recognized as a
Realtek device by btusb, preventing btrtl from loading firmware.
Hardware Information:
- Laptop: ASUS TUF Gaming A16 FA608UP (2025)
- Bluetooth USB ID: 13d3:3612 (IMC Networks Bluetooth Radio)
- Chip: Realtek RTL8852CE
- WiFi works with rtw89 driver
lsusb output:
Bus 001 Device 002: ID 13d3:3612 IMC Networks Bluetooth Radio
Chip identification from btmon:
HCI version: Bluetooth 5.3 (0x0c) - Revision 12 (0x000c)
LMP version: Bluetooth 5.3 (0x0c) - Subversion 34898 (0x8852)
Manufacturer: Realtek Semiconductor Corporation (93)
Problem:
The USB ID 13d3:3612 is not in btusb's device table with BTUSB_REALTEK flag.
Without this flag, btusb handles the device generically and never calls btrtl.
The chip responds to HCI commands but the radio doesn't function because
firmware is never loaded.
Solution:
Add to drivers/bluetooth/btusb.c:
{ USB_DEVICE(0x13d3, 0x3612), .driver_info = BTUSB_REALTEK },
Tested on kernel 6.17.9-zen1-1-zen. After adding this line, btrtl loads
rtl8852cu_fw_v2.bin and Bluetooth works normally.
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* [Bug 220815] btusb: Add Realtek RTL8852CE device ID (13d3:3612)
2025-11-30 6:58 [Bug 220815] New: btusb: Add Realtek RTL8852CE device ID (13d3:3612) bugzilla-daemon
@ 2025-11-30 12:41 ` bugzilla-daemon
2025-11-30 23:44 ` bugzilla-daemon
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2025-11-30 12:41 UTC (permalink / raw)
To: linux-bluetooth
https://bugzilla.kernel.org/show_bug.cgi?id=220815
Paul Menzel (pmenzel+bugzilla.kernel.org@molgen.mpg.de) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pmenzel+bugzilla.kernel.org
| |@molgen.mpg.de
--- Comment #1 from Paul Menzel (pmenzel+bugzilla.kernel.org@molgen.mpg.de) ---
Created attachment 308985
--> https://bugzilla.kernel.org/attachment.cgi?id=308985&action=edit
[PATCH] Bluetooth: btusb: Add 13d3:3612 for Realtek RTL8852CE
Thank you for the report, and providing the solution. I cooked up a patch and
attached it. It also adds the flags `BTUSB_WIDEBAND_SPEECH` as all the other
devices have.
It’s common practice to add the device info from
`/sys/kernel/debug/usb/devices` to the commit message. It’d be great, if you
could provide that, so I can send in the patch.
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* [Bug 220815] btusb: Add Realtek RTL8852CE device ID (13d3:3612)
2025-11-30 6:58 [Bug 220815] New: btusb: Add Realtek RTL8852CE device ID (13d3:3612) bugzilla-daemon
2025-11-30 12:41 ` [Bug 220815] " bugzilla-daemon
@ 2025-11-30 23:44 ` bugzilla-daemon
2025-12-06 14:17 ` bugzilla-daemon
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2025-11-30 23:44 UTC (permalink / raw)
To: linux-bluetooth
https://bugzilla.kernel.org/show_bug.cgi?id=220815
--- Comment #2 from azureller1@gmail.com ---
Cool, thanks. Here is the device info:
Bus 001 Device 002: ID 13d3:3612 IMC Networks Bluetooth Radio
Negotiated speed: Full Speed (12Mbps)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 224 Wireless
bDeviceSubClass 1 Radio Frequency
bDeviceProtocol 1 Bluetooth
bMaxPacketSize0 64
idVendor 0x13d3 IMC Networks
idProduct 0x3612 Bluetooth Radio
bcdDevice 0.00
iManufacturer 1 Realtek
iProduct 2 Bluetooth Radio
iSerial 3 00e04c000001
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x00c8
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 4 Bluetooth Radio
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 4 Bluetooth Radio
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 4 Bluetooth Radio
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0009 1x 9 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0009 1x 9 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 4 Bluetooth Radio
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0011 1x 17 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0011 1x 17 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 4 Bluetooth Radio
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0019 1x 25 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0019 1x 25 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 4 Bluetooth Radio
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0021 1x 33 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0021 1x 33 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 4 Bluetooth Radio
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0031 1x 49 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0031 1x 49 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 4 Bluetooth Radio
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x003f 1x 63 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x003f 1x 63 bytes
bInterval 1
Device Status: 0x0001
Self Powered
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* [Bug 220815] btusb: Add Realtek RTL8852CE device ID (13d3:3612)
2025-11-30 6:58 [Bug 220815] New: btusb: Add Realtek RTL8852CE device ID (13d3:3612) bugzilla-daemon
2025-11-30 12:41 ` [Bug 220815] " bugzilla-daemon
2025-11-30 23:44 ` bugzilla-daemon
@ 2025-12-06 14:17 ` bugzilla-daemon
2025-12-07 20:06 ` bugzilla-daemon
2026-02-14 23:42 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2025-12-06 14:17 UTC (permalink / raw)
To: linux-bluetooth
https://bugzilla.kernel.org/show_bug.cgi?id=220815
jeremy (jeremy53561@gmail.com) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jeremy53561@gmail.com
--- Comment #3 from jeremy (jeremy53561@gmail.com) ---
They need results for
sudo cat /sys/kernel/debug/usb/devices| awk '/3612/' RS=
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* [Bug 220815] btusb: Add Realtek RTL8852CE device ID (13d3:3612)
2025-11-30 6:58 [Bug 220815] New: btusb: Add Realtek RTL8852CE device ID (13d3:3612) bugzilla-daemon
` (2 preceding siblings ...)
2025-12-06 14:17 ` bugzilla-daemon
@ 2025-12-07 20:06 ` bugzilla-daemon
2026-02-14 23:42 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2025-12-07 20:06 UTC (permalink / raw)
To: linux-bluetooth
https://bugzilla.kernel.org/show_bug.cgi?id=220815
--- Comment #4 from azureller1@gmail.com ---
Here that is.
T: Bus=01 Lev=01 Prnt=01 Port=02 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=13d3 ProdID=3612 Rev= 0.00
S: Manufacturer=Realtek
S: Product=Bluetooth Radio
S: SerialNumber=00e04c000001
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
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* [Bug 220815] btusb: Add Realtek RTL8852CE device ID (13d3:3612)
2025-11-30 6:58 [Bug 220815] New: btusb: Add Realtek RTL8852CE device ID (13d3:3612) bugzilla-daemon
` (3 preceding siblings ...)
2025-12-07 20:06 ` bugzilla-daemon
@ 2026-02-14 23:42 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2026-02-14 23:42 UTC (permalink / raw)
To: linux-bluetooth
https://bugzilla.kernel.org/show_bug.cgi?id=220815
--- Comment #5 from Daniel Tang (danielzgtg.opensource@gmail.com) ---
Added in
https://github.com/torvalds/linux/commit/d9f7c39c6b7548bd70519b241b6c2d1bcc658d4b
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