cfg80211 DebugFS entries

configname: CONFIG_CFG80211_DEBUGFS

Linux Kernel Configuration
└─>Networking support
└─>Wireless
└─>cfg80211 DebugFS entries
In linux kernel since version 2.6.31 (release Date: 2009-09-09)  
You can enable this if you want debugfs entries for cfg80211.

If unsure, say N.