default or selected kernelversion does not have config value CONFIG_VIDEO_W9966.
Result is shown for kernelversion 6.5.1

W9966CF Webcam (FlyCam Supra and others) Video For Linux

modulename: w9966.ko

configname: CONFIG_VIDEO_W9966

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>ISA and parallel port devices
└─>Parallel port support
└─>W9966CF Webcam (FlyCam Supra and others) Video For Linux
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Video4linux driver for Winbond's w9966 based Webcams.
Currently tested with the LifeView FlyCam Supra.
If you have one of these cameras, say Y here
otherwise say N.
This driver is also available as a module (w9966).

Check out Documentation/video4linux/w9966.txt for more

source code: