[mirror_ubuntu-artful-kernel.git] / Documentation / ABI / testing / sysfs-dev

What:		/sys/dev
Date:		April 2008
KernelVersion:	2.6.26
Contact:	Dan Williams <dan.j.williams@intel.com>
Description:	The /sys/dev tree provides a method to look up the sysfs
		path for a device using the information returned from
		stat(2).  There are two directories, 'block' and 'char',
		beneath /sys/dev containing symbolic links with names of
		the form "<major>:<minor>".  These links point to the
		corresponding sysfs path for the given device.

		Example:
		$ readlink /sys/dev/block/8:32
		../../block/sdc

		Entries in /sys/dev/char and /sys/dev/block will be
		dynamically created and destroyed as devices enter and
		leave the system.

Users:		mdadm <linux-raid@vger.kernel.org>
Commit	Line	Data
e105b8bf DW	1	What: /sys/dev
	2	Date: April 2008
	3	KernelVersion: 2.6.26
	4	Contact: Dan Williams <dan.j.williams@intel.com>
	5	Description: 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
	20	Users: mdadm <linux-raid@vger.kernel.org>