default or selected kernelversion does not have config value CONFIG_VIDEO_V4L1_COMPAT.
Result is shown for kernelversion 5.4.69

Enable Video For Linux API 1 compatible Layer


Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>Enable Video For Linux API 1 compatible Layer
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Enables a compatibility API used by most V4L2 devices to allow
its usage with legacy applications that supports only V4L1 api. Documentation for the original API is included in the file

User tools for this are available from

If you are unsure as to whether this is required, answer Y.