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

GENHD_FL_MEDIA_CHANGE_NOTIFY

Value: 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.