[PATCH v5 8/8] Bluetooth: btusb: Add MT7927 ID for ASUS X870E / ProArt X870E-Creator

Javier Tia
2026-03-31T17:10:31Z

Add USB device ID 13d3:3588 (IMC Networks/Azurewave) for the MediaTek
MT7927 (Filogic 380) Bluetooth interface found on the ASUS ROG STRIX
X870E-E GAMING WIFI and ASUS ProArt X870E-Creator WiFi motherboards.

Note: boards with this USB ID expose only one ISO alternate setting
(alt 0). Without the fix in patch 2/8 ("btmtk: fix ISO interface
setup for single alt setting"), this caused ~19 second initialization
delays. With the fix applied, initialization completes in ~2.6
seconds.

The information in /sys/kernel/debug/usb/devices about the Bluetooth
device is listed as the below.

T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 5 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=13d3 ProdID=3588 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#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us
E: Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us

Link: https://bugzilla.kernel.org/show_bug.cgi?id=221096
Link: https://github.com/openwrt/mt76/issues/927
Signed-off-by: Javier Tia <floss@jetm.me>
Tested-by: Jose Tiburcio Ribeiro Netto <jnetto@mineiro.io>
Tested-by: Ivan Lubnin <lubnin.ivan@gmail.com>
---
drivers/bluetooth/btusb.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 55a000540439..45ef0d008bce 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -761,6 +761,8 @@ static const struct usb_device_id quirks_table[] = {
BTUSB_WIDEBAND_SPEECH },
{ USB_DEVICE(0x0489, 0xe116), .driver_info = BTUSB_MEDIATEK |
BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3588), .driver_info = BTUSB_MEDIATEK |