My question is a bit of a tricky one.
My RPi has 2 wireless interfaces and I have 2 wireless routers with different SSIDs. I am just looking for a configuration where the first wifi device always connects to the first AP and the second device to the other AP.
For example, like this:
wlan0 ------> ssid_one wlan1 ------> ssid_two
Is it possible to solve this within the /etc/network/interfaces [+wpa_conf[s]] files?