X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=rules%2Frules.d%2F60-persistent-storage.rules;h=5c2689b885fd6b0fcff7236ffa16c32493452d90;hb=f2a2983604fa6876fc297c9156b7ad0f04a482e8;hp=0a21d85459853c7934d7741543f388f472d184fa;hpb=693b6344e193f5aeca21df5f1c98fd32148006ac;p=elogind.git

diff --git a/rules/rules.d/60-persistent-storage.rules b/rules/rules.d/60-persistent-storage.rules
index 0a21d8545..5c2689b88 100644
--- a/rules/rules.d/60-persistent-storage.rules
+++ b/rules/rules.d/60-persistent-storage.rules
@@ -7,6 +7,10 @@
 ACTION=="change", SUBSYSTEM=="scsi", ENV{DEVTYPE}=="scsi_device", TEST=="block", ATTR{block/*/uevent}="change"
 
 ACTION=="remove", GOTO="persistent_storage_end"
+
+# enable in-kernel media-presence polling
+ACTION=="add", SUBSYSTEM=="module", KERNEL=="block", ATTR{parameters/events_dfl_poll_msecs}=="0", ATTR{parameters/events_dfl_poll_msecs}="2000"
+
 SUBSYSTEM!="block", GOTO="persistent_storage_end"
 
 # skip rules for inappropriate block devices
@@ -69,7 +73,7 @@ KERNEL=="sr*", ENV{DISK_EJECT_REQUEST}!="?*", ENV{ID_CDROM_MEDIA_TRACK_COUNT_DAT
 # probe filesystem metadata of disks
 KERNEL!="sr*", IMPORT{program}="/sbin/blkid -o udev -p $tempnode"
 
-# watch for future changes
+# watch metadata changes by tools closing the device after writing
 KERNEL!="sr*", OPTIONS+="watch"
 
 # by-label/by-uuid links (filesystem metadata)