Instalasi TP-Link TL-WN721N di Raspberry Pi - Raspbian (Debian Wheezy)

root@mulyana:~# apt-get update
root@mulyana:~# apt-get install wireless-tools usbutils
root@mulyana:~# apt-get install firmware-atheros
root@mulyana:~# wget http://linuxwireless.org/download/htc_fw/1.3/htc_9271.fw
root@mulyana:~# cp htc_9271.fw /lib/firmware
root@mulyana:~# nano  /etc/network/interfaces

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
auto wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa.conf

root@mulyana:~# iwconfig

wlan0     IEEE 802.11bgn  ESSID:off/any
          Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
lo        no wireless extensions.
eth0      no wireless extensions.

root@mulyana:~# iwlist wlan0 scan | grep ESSID

root@mulyana:~# nano  /etc/wpa.conf

network={
ssid="SSID"
proto=RSN
key_mgmt=WPA-PSK
pairwise=CCMP TKIP
group=CCMP TKIP
psk="PASSWORD"
}

root@mulyana:~# ifup wlan0

root@mulyana:~# ifconfig

eth0   Link encap:Ethernet  HWaddr b8:27:eb:e1:41:ff
          inet addr:192.168.20.106  Bcast:255.255.255.255  Mask:255.255.255.0
          inet6 addr: fe80::ba27:ebff:fee1:41ff/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1118 errors:0 dropped:0 overruns:0 frame:0
          TX packets:196 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:68204 (66.6 KiB)  TX bytes:25498 (24.9 KiB)
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:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet  HWaddr f8:d1:11:b3:94:e3
          inet addr:192.168.20.104  Bcast:192.168.222.255  Mask:255.255.255.0
  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:2260 (2.2 KiB)  TX bytes:1542 (1.5 KiB)

root@mulyana:~# route add default gw 192.168.20.1 wlan0