Open Sound System (DEPRECATED)

modulename: sound_firmware.ko

configname: CONFIG_SOUND_PRIME

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Open Sound System (DEPRECATED)
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say 'Y' or 'M' to enable Open Sound System drivers.

source code: