ls: cannot access '/sys/class/ieee80211/': No such file or directory

Hello,
I am a linux new.I am testing ar9271 wireless card on kali 2.0. when I  type in terminal airmon-ng I get a error message.
The CPU architecture is ARMv7(s5p6818)and kernel version is 3.4.9.
can you tell me what should I do? Thanks.

Log message following:

root@kali:~# lsusb
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
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
root@kali:~# airmon-ng
ls: cannot access '/sys/class/ieee80211/': No such file or directory
PHY     Interface       Driver          Chipset

root@kali:~# airmon-ng check kill
ls: cannot access '/sys/class/ieee80211/': No such file or directory

Killing these processes:

  PID Name
  416 dhclient

root@kali:~# dmesg | tail
[    5.160000] systemd[1]: Mounted POSIX Message Queue File System.
[    5.168000] systemd[1]: Started Journal Service.
[    5.620000] systemd-journald[196]: Received request to flush runtime journal from PID 1
[    5.860000] Registered led device: ledp1
[    5.896000] rtc-ds1307: probe of 0-0068 failed with error -5
[    5.984000] bt_bcm: rfkill set_block Off GPIOB.8
[    5.996000] adxl34x 0-001d: Failed to probe ADXL34x accelerometer
[    6.564000] eth0: device MAC address 76:92:d4:85:f3:0f
[    9.312000] PHY: stmmac-0:07 - Link is Up - 100/Full
[   16.896000] eth0: no IPv6 routers present

Best & Thanks,
wenmao