/Documentation/ABI/testing/sysfs-dev
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Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
1What: /sys/dev
2Date: April 2008
3KernelVersion: 2.6.26
4Contact: Dan Williams <dan.j.williams@intel.com>
5Description: The /sys/dev tree provides a method to look up the sysfs
6 path for a device using the information returned from
7 stat(2). There are two directories, 'block' and 'char',
8 beneath /sys/dev containing symbolic links with names of
9 the form "<major>:<minor>". These links point to the
10 corresponding sysfs path for the given device.
11
12 Example:
13 $ readlink /sys/dev/block/8:32
14 ../../block/sdc
15
16 Entries in /sys/dev/char and /sys/dev/block will be
17 dynamically created and destroyed as devices enter and
18 leave the system.
19
20Users: mdadm <linux-raid@vger.kernel.org>