whenever i put certain commands into the konsole that use my interface wlan0 i'll get this error message :
root@bt:~# airodump-ng wlan0
ioctl(SIOCSIWMODE) failed: Device or resource busy

ARP linktype is set to 1 (Ethernet) - expected ARPHRD_IEEE80211,
ARPHRD_IEEE80211_FULL or ARPHRD_IEEE80211_PRISM instead.  Make
sure RFMON is enabled: run 'airmon-ng start wlan0 <#>'
Sysfs injection support was not found either.
it just started happening in bt4, to get it to work again i have to disconnect the adapeter and reconnect it.
im assuming it's only doing this when i connect to my router by iwconfig wlan0 mode managed essid.. .... . .. ..
and when i disconnect it of course im disconnected from the router but im able to airodump-ng plus other things i couldnt.
does this message mean my adapter can't multi task or something?