Wolfson Microelectronics WM8731 CODEC

modulename: snd-soc-wm8731.ko

configname: CONFIG_SND_SOC_WM8731

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>CODEC drivers
└─>Wolfson Microelectronics WM8731 CODEC
In linux kernel since version 2.6.21.1 (release Date: 2007-04-27)  
source code: