default or selected kernelversion does not have config value CONFIG_MX3_VIDEO.
Result is shown for kernelversion 6.2.5

CONFIG_MX3_VIDEO (not configurable)

configname: CONFIG_MX3_VIDEO

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>Video capture adapters
└─>MX3_VIDEO
In linux kernel since version 2.6.31 (release Date: 2009-09-09)