jeroen@jeroen-laptop:~$ sudo snort -l /home/jeroen/ -L test -i wlan0
[sudo] password for jeroen:
Running in packet logging mode
Log directory = /home/jeroen/

        --== Initializing Snort ==--
Initializing Output Plugins!
Var 'any_ADDRESS' defined, value len = 15 chars, value = 0.0.0.0/0.0.0.0
Var 'lo_ADDRESS' defined, value len = 19 chars, value = 127.0.0.0/255.0.0.0
Verifying Preprocessor Configurations!

Initializing Network Interface wlan0
Decoding Ethernet on interface wlan0
Preprocessor/Decoder Rule Count: 0

        --== Initialization Complete ==--

   ,,_     -*> Snort! <*-
  o"  )~   Version 2.7.0 (Build 35)  
   ''''    By Martin Roesch & The Snort Team: http://www.snort.org/team.html
           (C) Copyright 1998-2007 Sourcefire Inc., et al.

Not Using PCAP_FRAMES