|bool "sysfs file system support" if EXPERT
|The sysfs filesystem is a virtual filesystem that the kernel uses to
|export internal kernel objects, their attributes, and their
|relationships to one another.
|Users can use sysfs to ascertain useful information about the running
|kernel, such as the devices the kernel has discovered on each bus and
|which driver each is bound to. sysfs can also be used to tune devices
|and other kernel subsystems.
|Some system agents rely on the information in sysfs to operate.
|/sbin/hotplug uses device and object attributes in sysfs to assist in
|delegating policy decisions, like persistently naming devices.
|sysfs is currently used by the block subsystem to mount the root
|partition. If sysfs is disabled you must specify the boot device on
|the kernel boot command line via its major and minor numbers. For
|example, "root=03:01" for /dev/hda1.
|Designers of embedded systems may wish to say N here to conserve space.