Error while using USB wireless module TPLink

[Geetika]

Hello,
I am using USB wireless module by TP-LINK(TL-WN721N) for my A20-OLinuXino-Micro board.
The USB module has chip set no. as Atheros Communications, Inc. AR9271.
After connecting this USB to A20 when I run iwconfig command it shows:
lo        no wireless extensions.
usb0      no wireless extensions.
tunl0     no wireless extensions.
eth0      no wireless extensions.

But, when I run lusb command it shows:
Bus 004 Device 002: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

And after running dmesg command it shows,
[  370.971223] ehci_irq: port change detect
[  371.252482] usb 2-1: new high-speed USB device number 5 using sw-ehci
[  371.442863] usb 2-1: ath9k_htc: Firmware htc_9271.fw requested
[  371.460441] usb 2-1: ath9k_htc: Failed to get firmware htc_9271.fw
[  371.473538] usb 2-1: ath9k_htc: USB layer deinitialized

I want to use this TCP-LINK USB as a wi-fi device for my A20 board. Please suggest the necessary steps to be done so that A20 board detects it.

[progmetalbg]

What Linux distro do you use on your OLinuXino?
On Debian you probably need to install the firmware-atheros package.
On Arch Linux ARM you need linux-firmware package:

Code Select Expand

$ pacman -Ql linux-firmware | grep htc
linux-firmware /usr/lib/firmware/htc_7010.fw
linux-firmware /usr/lib/firmware/htc_9271.fw