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Commit | Line | Data |
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c18f6365 GKH |
1 | What: /sys/devices |
2 | Date: February 2006 | |
bc5bca53 | 3 | Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
c18f6365 GKH |
4 | Description: |
5 | The /sys/devices tree contains a snapshot of the | |
6 | internal state of the kernel device tree. Devices will | |
7 | be added and removed dynamically as the machine runs, | |
8 | and between different kernel versions, the layout of the | |
9 | devices within this tree will change. | |
10 | ||
11 | Please do not rely on the format of this tree because of | |
12 | this. If a program wishes to find different things in | |
13 | the tree, please use the /sys/class structure and rely | |
14 | on the symlinks there to point to the proper location | |
15 | within the /sys/devices tree of the individual devices. | |
16 | Or rely on the uevent messages to notify programs of | |
17 | devices being added and removed from this tree to find | |
18 | the location of those devices. | |
19 | ||
20 | Note that sometimes not all devices along the directory | |
21 | chain will have emitted uevent messages, so userspace | |
22 | programs must be able to handle such occurrences. | |
23 | ||
24 | Users: | |
25 | udev <linux-hotplug-devel@lists.sourceforge.net> |