default or selected kernelversion does not have config value CONFIG_SOUND_TRIX.
Result is shown for kernelversion 6.7-rc3

MediaTrix AudioTrix Pro support

modulename: trix.ko

configname: CONFIG_SOUND_TRIX

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Open Sound System (DEPRECATED)
└─>OSS sound modules
└─>MediaTrix AudioTrix Pro support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Answer Y if you have the AudioTriX Pro sound card manufactured
by MediaTrix.

source code:
sound/oss/