swh:1:snp:173f8deb0c56c557784b4fd217e7608ac6197844
Raw File
Tip revision: 60cc43fc888428bb2f18f08997432d426a243338 authored by Linus Torvalds on 16 April 2018, 01:24:20 UTC
Linux 4.17-rc1
Tip revision: 60cc43f
Kconfig
config SYSFS
	bool "sysfs file system support" if EXPERT
	default y
	select KERNFS
	help
	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.
back to top