config CONFIGFS_FS tristate "Userspace-driven configuration filesystem" depends on SYSFS help configfs is a ram-based filesystem that provides the converse of sysfs's functionality. Where sysfs is a filesystem-based view of kernel objects, configfs is a filesystem-based manager of kernel objects, or config_items. Both sysfs and configfs can and should exist together on the same system. One is not a replacement for the other.