我正在尝试为运行Android Things OS的Rasberry pi添加wifi热点/接入点。我想我会通过添加一个额外的USB Wifi适配器（Edimax EW-7811Un）并将其与pi的内部wifi适配器连接起来。
不幸的是，我不熟悉linux，习惯使用windows和osx进行即插即用，而不必手动调整任何配置！
在谷歌搜索并运行各种命令后，我可以看到已找到适配器。
通过dmesg搜索，我可以看到该设备......
[ 4.131380] usb 1-1.4: new high-speed USB device number 4 using dwc_otg
[ 4.232604] usb 1-1.4: New USB device found, idVendor=7392, idProduct=7811
[ 4.232616] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 4.232624] usb 1-1.4: Product: 802.11n WLAN Adapter
[ 4.232630] usb 1-1.4: Manufacturer: Realtek
[ 4.232637] usb 1-1.4: SerialNumber: 00e04c000001
正在运行lusb会显示设备（004）...
rpi3:/ # lsusb
Bus 001 Device 002: ID 0424:9514
Bus 001 Device 001: ID 1d6b:0002
Bus 001 Device 003: ID 0424:ec00
Bus 001 Device 004: ID 7392:7811
但是，ifconfig /a只显示默认硬件......
wlan0 Link encap:Ethernet HWaddr b8:27:eb:87:50:67 Driver brcmfmac_sdio
inet addr:192.168.1.102 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: 2a00:23c4:7400:5c00:d848:e0c3:e997:182/64 Scope: Global
inet6 addr: fdaa:bbcc:ddee:0:d848:e0c3:e997:182/64 Scope: Global
inet6 addr: fdaa:bbcc:ddee:0:691d:ecb5:3fd2:94e0/64 Scope: Global
inet6 addr: 2a00:23c4:7400:5c00:7b46:c90f:599a:4551/64 Scope: Global
inet6 addr: fe80::29c9:aa36:a6bb:ddc5/64 Scope: Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2121 errors:0 dropped:42 overruns:0 frame:0
TX packets:1775 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:474636 TX bytes:889088
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:0 TX bytes:0
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope: Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:33 errors:0 dropped:0 overruns:0 frame:0
TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:4154 TX bytes:4154
eth0 Link encap:Ethernet HWaddr b8:27:eb:d2:05:32 Driver smsc95xx
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 TX bytes:0
有人可以建议Android Things OS是否可以支持额外的USB Wifi适配器，如果有的话，我需要做些什么才能使设备处于活动状态？