FreeBSD Wifi

1. FreeBSD Wifi – RTL8821CE
2. Edimax USB WiFi – RTL8188CUS
3. Realtek Edimax AC600 (EW-7811UTC) – RTL8811AU

FreeBSD Wifi – RTL8821CE

pciconf -l -v
rtw880@pci0:5:0:0:      class=0x028000 rev=0x00 hdr=0x00 vendor=0x10ec device=0xc821 subvendor=0x10ec subdevice=0xc821
    vendor     = 'Realtek Semiconductor Co., Ltd.'
    device     = 'RTL8821CE 802.11ac PCIe Wireless Network Adapter'
    class      = network

Driver compatiblity

vi /boot/loader.conf
compat.linuxkpi.skb.mem_limit=1

Enable Setting in rc.conf

sysrc wlans_rtw880="wlan0"
sysrc create_args_wlan0="country DE regdomain etsi2"

Configure the Interface

ifconfig wlan0 create wlandev rtw880
ifconfig wlan0 country DE regdomain etsi2
 

ifconfig wlan0 list scan
SSID/MESH ID                      BSSID              CHAN RATE    S:N     INT CAPS
MYSSID                     de:ad:be:af:ab:ff   11   54M  -51:-96   100 EPS  HTCAP RSN WME BSSLOA

wpa_supplicant.conf
network={
	       ssid="home"
	       scan_ssid=1
	       key_mgmt=WPA-PSK
	       psk="very secret	passphrase"
       }

https://man.freebsd.org/cgi/man.cgi?query=wpa_supplicant.conf

Edimax USB WiFi – RTL8188CUS

usbconfig
ugen0.2: <Realtek 802.11n WLAN Adapter> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)

usbconfig -d 0.2 show_ifdrv
ugen0.2: <Realtek 802.11n WLAN Adapter> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)
ugen0.2.0: rtwn0: <Realtek 802.11n WLAN Adapter, class 0/0, rev 2.00/2.00, addr 3>

sysctl net.wlan.devices
net.wlan.devices: rtwn0

 ifconfig wlan1 create wlandev rtwn0
root@s052ne1ns01:~ # ifconfig wlan1
wlan1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=0
        ether 74:da:38:7e:d7:b4
        groups: wlan
        ssid "" channel 1 (2412 MHz 11b)
        regdomain FCC country US authmode OPEN privacy OFF txpower 30 bmiss 7
        scanvalid 60 wme bintval 0
        parent interface: rtwn0
        media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
        status: no carrier
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

Realtek Edimax AC600 (EW-7811UTC) – RTL8811AU

Looks like EW-7811UTC uses as Chipset RTL8811AU.

AC600 Wi-Fi 5 Nano USB Adapter – EW-7811ULC

usbconfig

ugen0.2: <Realtek Edimax AC600 USB WiFi Adapter> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)

usbconfig -d 0.2 show_ifdrv
ugen0.2: <Realtek Edimax AC600 USB WiFi Adapter> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)

https://man.freebsd.org/cgi/man.cgi?query=rtwn_usb&apropos=0&sektion=4&manpath=FreeBSD+12.0-RELEASE&arch=default&format=html