Neither ifconfig -a nor nmcli dev show display a wifi adapter on my Raspberry Pi4B.
After executing the following commands (which originally were listed in a related post (https://forums.raspberrypi.com/viewtopic.php?p=1515171):
rmmod brcmfmac
rmmod brcmutil
rmmod cfg80211
modprobe brcmfmac
both ifconfig -a and nmcli dev show list wlan0 as one of the items.
ifconfig allows me to 'up' the wlan0 interface.
However, when I run nmcli dev wifi rescan to see what networks I can connect to I get a message saying "Error: No Wi-Fi device found."
Also, after a reboot, wlan0 becomes invisible again and I have to execute all those commands again.
The OS is Oracle Linux.
Any suggestions?
