Texas Instruments PCM1681 CODEC

modulename: snd-soc-pcm1681.ko

configname: CONFIG_SND_SOC_PCM1681

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>CODEC drivers
└─>Texas Instruments PCM1681 CODEC
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code: