enable dell inspiron N4010 wireless module

先 lspci 看一下 wireless module 是.. 04:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) 或是用 lshw --class network 看 *-network description: Wireless interface product: BCM4313 802.11b/g/n Wireless LAN Controller vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:04:00.0 logical name: wlan0 version: 01 serial: 5c:ac:4c:98:d7:59 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=brcm80211 ip=192.168.43.230 latency=0 multicast=yes wireless=IEEE 802.11bgn resources: irq:17 memory:f0300000-f0303fff 知道是 BCM4313

然後　google 到這一篇：http://wiki.debian.org/brcm80211
照著作，安裝 firmware-brcm80211，然後 modprobe..
-- 奇怪我第一次 modprobe 沒效， -r 後再 一次才 iwconfig OK.

裝進去後，就可以在 GUI networkmanager applet看到...
... 就可以操作了..