CONFIG_FILE_SYSTEM=y
CONFIG_LOG=y
CONFIG_FAT_FILESYSTEM_ELM=y
CONFIG_DISK_DRIVER_RAM=y
CONFIG_DISK_RAM_VOLUME_SIZE=80
CONFIG_POSIX_API=y
CONFIG_POSIX_FS=y
CONFIG_ZTEST=y
CONFIG_ZTEST_NEW_API=y
CONFIG_MAIN_STACK_SIZE=4096