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