CONFIG_RTLWIFI (not configurable)

modulename: rtlwifi.ko

configname: CONFIG_RTLWIFI

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Wireless LAN
└─>Realtek rtlwifi family of devices
└─>RTLWIFI
In linux kernel since version 2.6.38 (release Date: 2011-03-14)  
source code:
drivers/net/wireless/realtek/rtlwifi/