Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
26 lines
1.0 KiB
Plaintext
26 lines
1.0 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config SYSFS
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bool "sysfs file system support" if EXPERT
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default y
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select KERNFS
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help
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The sysfs filesystem is a virtual filesystem that the kernel uses to
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export internal kernel objects, their attributes, and their
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relationships to one another.
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Users can use sysfs to ascertain useful information about the running
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kernel, such as the devices the kernel has discovered on each bus and
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which driver each is bound to. sysfs can also be used to tune devices
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and other kernel subsystems.
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Some system agents rely on the information in sysfs to operate.
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/sbin/hotplug uses device and object attributes in sysfs to assist in
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delegating policy decisions, like persistently naming devices.
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sysfs is currently used by the block subsystem to mount the root
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partition. If sysfs is disabled you must specify the boot device on
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the kernel boot command line via its major and minor numbers. For
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example, "root=03:01" for /dev/hda1.
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Designers of embedded systems may wish to say N here to conserve space.
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