Wifi¶

WiFi module is connected as USB device
(make sure meta-rtlwifi from step 01. Yocto is enabled, so the driver is installed on final image)

Copy file to /etc/wpa_supplicant.conf
Inside this file set SSID and Password

for debug only:
restart usb device
echo 0 > /sys/bus/usb/devices/2-1/authorized
echo 1 > /sys/bus/usb/devices/2-1/authorized

example commands:

Static IP:¶

ifconfig wlan0 192.168.1.205 #Set the static IP address, should be unique
wpa_passphrase WiFi xxxx > /etc/wpa_supplicant.conf #if password changed
route add default gw 192.168.1.1 #Router IP address
wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf
echo "nameserver 8.8.8.8" >> /etc/resolv.conf
echo "nameserver 8.8.4.4" >> /etc/resolv.conf

DHCP:¶

wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf
udhcpc -i wlan0

Channels:
CHANNEL FREQUENCY
1 2412
2 2417
3 2422
4 2427
5 2432
6 2437
7 2442
8 2447
9 2452
10 2457
11 2462
12 2467
13 2472
14 2484

Channel Frequency World N.America Japan
1 2412 2401-2423 Yes Yes Yes
2 2417 2406-2428 Yes Yes Yes
3 2422 2411-2433 Yes Yes Yes
4 2427 2416-2438 Yes Yes Yes
5 2432 2421-2443 Yes Yes Yes
6 2437 2426-2448 Yes Yes Yes
7 2442 2431-2453 Yes Yes Yes
8 2447 2436-2458 Yes Yes Yes
9 2452 2441-2463 Yes Yes Yes
10 2457 2446-2468 Yes Yes Yes
11 2462 2451-2473 Yes Yes Yes
12 2467 2456-2478 Yes avoided Yes
13 2472 2461-2483 Yes avoided Yes
14 2484 2473-2495 No No 11b onlyC