default or selected kernelversion does not have config value CONFIG_SOUND_VWSND.
Result is shown for kernelversion 6.5.1

SGI Visual Workstation Sound

modulename: vwsnd.ko

configname: CONFIG_SOUND_VWSND

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Open Sound System (DEPRECATED)
└─>SGI Visual Workstation Sound
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say Y or M if you have an SGI Visual Workstation and you want to be
able to use its on-board audio. Read
Documentation/sound/oss/vwsnd for more info on this driver's
capabilities.

source code: