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- 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.
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