CONFIG_SND_SOC_CS4271 (not configurable)

modulename: snd-soc-cs4271.ko

configname: CONFIG_SND_SOC_CS4271

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SND_SOC_CS4271
In linux kernel since version 2.6.39 (release Date: 2011-05-18)  
source code:
sound/soc//codecs/