Root/
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. |
24 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9