all i can find on internet is [iwlist interface scan].
it will list
wifi0 interface doesn't support scanning
wifi1 interface doesn't support scanning
while ath0 and ath1 can do the scanning
I know ath0 and ath1 are the interfaces of the wifi cards. but if i disabled wifi0, then iwlist scan redirect "ath0" to "wifi" instead of keeping "ath1" with "wifi1". This is what i don't want. I hope I can get  scanning result of wifi1 using iwlist ath1 scan at any case, no matter wifi is up or not.

so is there possibility to have iwlist DEV scan supported?. DEV refers to "wifi0" and "wifi1"?