CONFIG_SND_PCM (not configurable)

modulename: snd-pcm.ko

configname: CONFIG_SND_PCM

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>SND_PCM
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
source code:
sound/core//