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Diffstat (limited to 'Documentation/block/capability.txt')
| -rw-r--r-- | Documentation/block/capability.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/block/capability.txt b/Documentation/block/capability.txt new file mode 100644 index 000000000000..2f1729424ef4 --- /dev/null +++ b/Documentation/block/capability.txt @@ -0,0 +1,15 @@ +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. + |