WiFi and Bluetooth - Qualcomm Dragonwing Documentation

The Qualcomm Dragonwing IQ-8275 EVK features integrated Wi-Fi and Bluetooth connectivity via the NFA765A module (WCN6856 NSP288 chip) over an M.2 interface.

Specifications

Wi-Fi

Feature	Specification
Standard	Wi-Fi 6E (802.11ax)
Bands	2.4 GHz, 5 GHz, 6 GHz (tri-band)
Peak PHY Rate	2.9 Gbps with 1K QAM
Operation	Dual Band Simultaneous (DBS), STA and AP modes
Driver	ath11k

Bluetooth

Feature	Specification
Standard	Bluetooth Core Specification v5.2
BLE Speed	Up to 2 Mbps
Long Range	500 Kbps and 125 Kbps
Stack	BlueZ

Hardware Setup

Install Wi-Fi Module

Insert the NFA765A module into the M.2 slot at a 30-degree angle, press flat, and secure with the provided screw.

Connect Antennas

ANT0 — supports Wi-Fi 2.4 GHz, 5 GHz, and 6 GHz; shared with Bluetooth when operating at 2.4 GHz
ANT1 — supports Wi-Fi 2.4 GHz, 5 GHz, and 6 GHz

Connect UART Debug Cable

Connect the UART cable to the debug port and note the assigned COM port or /dev/ttyUSB device.

Connect Power and Boot

Power on and observe the boot sequence via UART console. Default login: ubuntu / ubuntu.

Verify Components

Wi-Fi

lsmod | grep ath11k
iw dev
ls -la /lib/firmware/ath11k/

Bluetooth

sudo lsmod | grep bt
hciconfig
ls -la /lib/firmware/qca/
systemctl status bluetooth

Wi-Fi Configuration

Station Mode

nmcli dev wifi list
nmcli dev wifi connect <SSID> password <password>
nmcli general status
ifconfig wlp1s0
ping 8.8.8.8

Set MAC Address (Optional)

The manually set MAC address persists only until the next reboot, then reverts to the factory OTP address.

ifconfig wlp1s0 down
ifconfig wlp1s0 hw ether XX:XX:XX:XX:XX:XX
ifconfig wlp1s0 up

Hotspot Mode

Add SoftAP interface

iw dev wlp1s0 interface add wlp1s0 type managed

Configure and start hostapd

hostapd -B /etc/hostapd.conf

Start DHCP server

brctl addbr br0
brctl addif br0 wlp1s0
ifconfig br0 192.168.225.1 netmask 255.255.255.0 up
dnsmasq --conf-file=/etc/dnsmasq.conf \
  --dhcp-range=br0,192.168.225.20,192.168.225.60,255.255.255.0,43200

Stop hotspot:

killall hostapd
ifconfig wlp1s0 down
rm -rf /var/run/hostapd/wlp1s0

Bluetooth Configuration

Set Bluetooth MAC Address (Optional)

A manually set Bluetooth MAC address does not persist across reboots.

hciconfig hci0 down
btmgmt public-addr 22:22:9B:2C:79:1E
hciconfig

GAP Operations

bluetoothctl
power on
scan on
pair F8:7D:76:9D:9B:6B
devices
discoverable on
power off

Supported Bluetooth Profiles

Profile	Role	Version
GAP	Central and Peripheral	—
SPP	Client and Server	v1.2
GATT	Central and Peripheral	—
OPP	Client and Server	v1.2
FTP	Client and Server	v1.2
PBAP	Client and Server	v1.1
MAP	Client and Server	v1.2

A2DP, AVRCP, and HFP are supported on WCN6750/WCN6856.

Debugging

# Wi-Fi
echo "module ath11k +p" > /sys/kernel/debug/dynamic_debug/control
dmesg > /tmp/dmesg.txt

# Bluetooth
echo "module bluetooth +p" > /sys/kernel/debug/dynamic_debug/control
echo "module btqca +p" > /sys/kernel/debug/dynamic_debug/control
dmesg > /tmp/bt_dmesg.txt

Troubleshooting

wlp1s0 Interface Not Found

dmesg | grep ath11k
ls /lib/firmware/ath11k/

Cannot Connect to AP

Verify SSID and password; check AP security settings.

Bluetooth Not Powering On

dmesg | grep -i bluetooth
ls /lib/firmware/qca/

Pairing Fails

Ensure both devices confirm the same passkey; retry pairing.

Audio Profile Not Working

A2DP and HFP require WCN6750/WCN6856 — verify profile support.

​Specifications

​Wi-Fi

​Bluetooth

​Hardware Setup

​Verify Components

​Wi-Fi

​Bluetooth

​Wi-Fi Configuration

​Station Mode

​Set MAC Address (Optional)

​Hotspot Mode

​Bluetooth Configuration

​Set Bluetooth MAC Address (Optional)

​GAP Operations

​Supported Bluetooth Profiles

​Debugging

​Troubleshooting

​Resources

Specifications

Wi-Fi

Bluetooth

Hardware Setup

Verify Components

Wi-Fi

Bluetooth

Wi-Fi Configuration

Station Mode

Set MAC Address (Optional)

Hotspot Mode

Bluetooth Configuration

Set Bluetooth MAC Address (Optional)

GAP Operations

Supported Bluetooth Profiles

Debugging

Troubleshooting

Resources