1CONFIG_FILE_SYSTEM=y 2CONFIG_LOG=y 3CONFIG_FAT_FILESYSTEM_ELM=y 4CONFIG_DISK_DRIVER_RAM=y 5CONFIG_DISK_RAM_VOLUME_SIZE=80 6CONFIG_POSIX_API=y 7CONFIG_POSIX_FS=y 8CONFIG_ZTEST=y 9CONFIG_MAIN_STACK_SIZE=4096 10CONFIG_EVENTFD=n 11
