CONFIG_STM32_DAC_CORE (not configurable)

modulename: stm32-dac-core.ko

configname: CONFIG_STM32_DAC_CORE

Linux Kernel Configuration
└─>Device Drivers
└─>Industrial I/O support
└─>Digital to analog converters
└─>STM32_DAC_CORE
In linux kernel since version 4.2 (release Date: 2015-08-30)  
source code:
drivers/iio/dac/stm32-dac-core.c
depends
CONFIG_IIO

is depended by
CONFIG_STM32_DAC