| What: /sys/devices |
| Date: February 2006 |
| Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| 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> |
