CONFIG_INPUT_VIVALDIFMAP (not configurable)

modulename: vivaldi-fmap.ko

configname: CONFIG_INPUT_VIVALDIFMAP

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>INPUT_VIVALDIFMAP
In linux kernel since version 5.2 (release Date: 2019-07-07)  
ChromeOS Vivaldi keymap support library. This is a hidden
option so that drivers can use common code to parse and
expose the vivaldi function row keymap.

source code: