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