| What: /sys/devices | |
| Date: February 2006 | |
| Contact: Greg Kroah-Hartman <gregkh@suse.de> | |
| Description: | |
| The /sys/devices tree contains a snapshot of the | |
| internal state of the kernel device tree. Devices will | |
| be added and removed dynamically as the machine runs, | |
| and between different kernel versions, the layout of the | |
| devices within this tree will change. | |
| Please do not rely on the format of this tree because of | |
| this. If a program wishes to find different things in | |
| the tree, please use the /sys/class structure and rely | |
| on the symlinks there to point to the proper location | |
| within the /sys/devices tree of the individual devices. | |
| Or rely on the uevent messages to notify programs of | |
| devices being added and removed from this tree to find | |
| the location of those devices. | |
| Note that sometimes not all devices along the directory | |
| chain will have emitted uevent messages, so userspace | |
| programs must be able to handle such occurrences. | |
| Users: | |
| udev <linux-hotplug-devel@lists.sourceforge.net> |