B+ raspbian (2015-05-05) kernel 3.18 interfaces

Raspberry PI B+, Raspbian 2015-05-05 (kernel 3.18)

default ifconfig & wlan0(NEXT mini) ,inote BT(CSR4.0)

pi@raspberrypi /etc/network $ cat /etc/network/interfaces

auto lo iface lo inet loopback auto eth0 allow-hotplug eth0 iface eth0 inet manual auto wlan0 allow-hotplug wlan0 iface wlan0 inet manual wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf auto wlan1 allow-hotplug wlan1 iface wlan1 inet manual wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf