hrirks@hrirks-Aspire-5750G:/etc/hostapd$ sudo service hostapd start
 * Starting advanced IEEE 802.11 management hostapd                      [fail]

hrirks@hrirks-Aspire-5750G:/etc/hostapd$ iwconfig
   wlan3     IEEE 802.11abgn  ESSID:off/any
      Mode:Managed  Frequency:2.417 GHz  Access Point: Not-Associated
      Tx-Power=15 dBm
      Retry short limit:7   RTS thr:off   Fragment thr:off
      Power Management:off

eth3      no wireless extensions.

wwan0     no wireless extensions.

wlan4     IEEE 802.11abgn  ESSID:off/any
      Mode:Managed  Frequency:2.417 GHz  Access Point: Not-Associated
      Tx-Power=15 dBm
      Retry short limit:7   RTS thr:off   Fragment thr:off
      Power Management:off

lo        no wireless extensions.