[mirror_ubuntu-artful-kernel.git] / Documentation / block / capability.txt

Generic Block Device Capability
===============================================================================
This file documents the sysfs file block/<disk>/capability

capability is a hex word indicating which capabilities a specific disk
supports.  For more information on bits not listed here, see
include/linux/genhd.h

Capability				Value
-------------------------------------------------------------------------------
GENHD_FL_MEDIA_CHANGE_NOTIFY		4
	When this bit is set, the disk supports Asynchronous Notification
	of media change events.  These events will be broadcast to user
	space via kernel uevent.
Commit	Line	Data
86ce18d7 KCA	1	Generic Block Device Capability
	2	===============================================================================
	3	This file documents the sysfs file block/<disk>/capability
	4
	5	capability is a hex word indicating which capabilities a specific disk
	6	supports. For more information on bits not listed here, see
	7	include/linux/genhd.h
	8
	9	Capability Value
	10	-------------------------------------------------------------------------------
	11	GENHD_FL_MEDIA_CHANGE_NOTIFY 4
	12	When this bit is set, the disk supports Asynchronous Notification
	13	of media change events. These events will be broadcast to user
	14	space via kernel uevent.
	15