diff options
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 000000000000..f4b67588b9d6 --- /dev/null +++ b/fs/sysfs/Kconfig | |||
| @@ -0,0 +1,23 @@ | |||
| 1 | config SYSFS | ||
| 2 | bool "sysfs file system support" if EMBEDDED | ||
| 3 | default y | ||
| 4 | help | ||
| 5 | The sysfs filesystem is a virtual filesystem that the kernel uses to | ||
| 6 | export internal kernel objects, their attributes, and their | ||
| 7 | relationships to one another. | ||
| 8 | |||
| 9 | Users can use sysfs to ascertain useful information about the running | ||
| 10 | kernel, such as the devices the kernel has discovered on each bus and | ||
| 11 | which driver each is bound to. sysfs can also be used to tune devices | ||
| 12 | and other kernel subsystems. | ||
| 13 | |||
| 14 | Some system agents rely on the information in sysfs to operate. | ||
| 15 | /sbin/hotplug uses device and object attributes in sysfs to assist in | ||
| 16 | delegating policy decisions, like persistently naming devices. | ||
| 17 | |||
| 18 | sysfs is currently used by the block subsystem to mount the root | ||
| 19 | partition. If sysfs is disabled you must specify the boot device on | ||
| 20 | the kernel boot command line via its major and minor numbers. For | ||
| 21 | example, "root=03:01" for /dev/hda1. | ||
| 22 | |||
| 23 | Designers of embedded systems may wish to say N here to conserve space. | ||
