Bus 001 Device 002: ID 0bda:c811 Realtek Semiconductor Corp. 802.11ac NIC
Line with Vendor , Product Ids above, are from a linux
lsusb command.
What Vendor
0bda and Product
c811 Ids do you get for your
RTL8821cu wifi device?
Can you post a picture of your wifi device or post a URL link to a manufacturer pictures and specifications? Realize the FreeBSD wifi drivers support a,b,g protocol but not N or AC.
Post all the results from first command and the section related to your wireless device on the second command
1.) usbconfig list
2.) usbconfig dump_device__desc
Wireless configuration for a USB device using rtwn driver Example Edimax EW-7811un RTL8192CU
Wireless configuration for a PCI device Good examples for Realtek PCI RTL8188CE chip set
RTL8812AU or RTL8812BU Realtek Devices A example explanation
Code:
usbconfig list
usbconfig dump_device_desc
Code:
sysctl -a net.wlan.devices
Remember this is JUST a work in progress.
There are 3 files need edited
/boot/loader.conf /etc/rc.conf /etc/wpa_supplicant.conf
you will need to install 2 or 3 wifi driver kernel modules with kldload command.
Check first what kernel modules are loaded. Then check after the 2 kldload commands.
Code:
kldstat
kldload rtwn if_rtwn_usb if_rtwn_pci
kldstat
Do this once to create wlan0 entry (or rtwn0, I am not sure)
Code:
ifconfig wlan0 create wlandev rtwn0
restart the networking service daemons
Code:
service netif restart
service routing restart
Scan for WiFi access points to connect to.
See more details at these 2 links about
Edimax and
PCI RTL8188CE
See also details / information from a well maintained linux table entry specifically for
Realtek chip sets wifi devices, both usb and pci
RTL8821cu
single board computers USB
wifi dongle adapter manufacturer
Realtek
RTL8821cu specifications
Place to look for wifi devices and supported BSD drivers for that device.
issue command
Code:
pkg install hw-probe
hw-probe -all -upload
to see how well your computer is supported by BSD drivers for the devices found inside. -all checks all devices -upload uploads the information on devices found in your PC computer up to the
bsd-hardware.info website. There is a companion Linux Hardware website
linux-hardware.org Where you can see how well your PC computer is supported by Linux device drivers for the devices found inside your computer.