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author | David S. Miller <davem@davemloft.net> | 2009-01-26 17:43:16 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2009-01-26 17:43:16 -0800 |
commit | 3eacdf58c2c0b9507afedfc19108e98b992c31e4 (patch) | |
tree | d95e7e022ff6e6181edce43fe97cf2883b5a91ed /fs/sysfs/Kconfig | |
parent | dd0a251c8e087bca05e8f9a3657078591ae6e12b (diff) | |
parent | 5376071069ec8a7e6a8112beab16fc24f5139475 (diff) | |
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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'fs/sysfs/Kconfig')
-rw-r--r-- | fs/sysfs/Kconfig | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/sysfs/Kconfig b/fs/sysfs/Kconfig new file mode 100644 index 00000000000..f4b67588b9d --- /dev/null +++ b/fs/sysfs/Kconfig @@ -0,0 +1,23 @@ +config SYSFS + bool "sysfs file system support" if EMBEDDED + default y + 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. |