Dica rápida sobre como configurar o adaptador de rede USB WiFi TP-Link (chipset Atheros) no Debian.

Ao plugar o adaptador na porta USB eu obtinha o seguinte erro (syslog):

Jan  1 20:07:21 titan kernel: [ 5614.199508] usb 4-3: new high-speed USB device number 6 using ehci-pci
Jan  1 20:07:21 titan kernel: [ 5614.348599] usb 4-3: New USB device found, idVendor=0cf3, idProduct=9271
Jan  1 20:07:21 titan kernel: [ 5614.348611] usb 4-3: New USB device strings: Mfr=16, Product=32, SerialNumber=48
Jan  1 20:07:21 titan kernel: [ 5614.348618] usb 4-3: Product: USB2.0 WLAN
Jan  1 20:07:21 titan kernel: [ 5614.348624] usb 4-3: Manufacturer: ATHEROS
Jan  1 20:07:21 titan kernel: [ 5614.348629] usb 4-3: SerialNumber: 12345
Jan  1 20:07:21 titan kernel: [ 5614.349200] usb 4-3: ath9k_htc: Firmware htc_9271.fw requested
Jan  1 20:07:21 titan kernel: [ 5614.349556] usb 4-3: firmware: failed to load htc_9271.fw (-2)
Jan  1 20:07:21 titan kernel: [ 5614.349564] usb 4-3: Direct firmware load for htc_9271.fw failed with error -2

Ocorre que para usar placas wireless e bluetooth da Atheros é necessário instalar o firmware do fabricante.

Abra um terminal e comande:

sudo apt-get install firmware-atheros

Agora experimente plugar novamente o adaptador. A saída deve ser conforme o esperado:

ifconfig
wlx60e3270f2086: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
        ether 60:e3:27:0f:20:86  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Espero ter ajudado!