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Avoid spinning up CD on pressing eject button

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When the CD tray door is locked and the hardware eject button is pressed, newer
kernels (2.6.38+) will send out a change event with a DISK_EJECT_REQUEST==1
property. Do not run cdrom_id and blkid in this case, as the media state and
contents does not change, and this only needlessly spins up the drive again
right before ejection.
This commit is contained in:
Martin Pitt
2011-04-04 11:47:54 +02:00
parent 9bb54267a1
commit 55eb500cc5
2 changed files with 5 additions and 2 deletions
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3
extras/cdrom_id/60-cdrom_id.rules
View File

@@ -5,6 +5,9 @@ SUBSYSTEM!="block", GOTO="cdrom_end"
KERNEL!="sr[0-9]*|xvd*", GOTO="cdrom_end"
ENV{DEVTYPE}!="disk", GOTO="cdrom_end"
# this is only a button press event
ENV{DISK_EJECT_REQUEST}=="?*", GOTO="cdrom_end"
KERNEL=="sr[0-9]*", ENV{ID_CDROM}="1"
IMPORT{program}="cdrom_id --export $tempnode"

4
rules/rules.d/60-persistent-storage.rules
View File

@@ -62,9 +62,9 @@ ENV{DEVTYPE}=="partition", ENV{ID_PATH}=="?*", SYMLINK+="disk/by-path/$env{ID_PA
ENV{DEVTYPE}=="disk", KERNEL!="sd*|sr*", ATTR{removable}=="1", GOTO="persistent_storage_end"
# probe filesystem metadata of optical drives which have a media inserted
KERNEL=="sr*", ENV{ID_CDROM_MEDIA_TRACK_COUNT_DATA}=="?*", ENV{ID_CDROM_MEDIA_SESSION_LAST_OFFSET}=="?*", IMPORT{program}="/sbin/blkid -o udev -p -u noraid -O $env{ID_CDROM_MEDIA_SESSION_LAST_OFFSET} $tempnode"
KERNEL=="sr*", ENV{DISK_EJECT_REQUEST}!="?*", ENV{ID_CDROM_MEDIA_TRACK_COUNT_DATA}=="?*", ENV{ID_CDROM_MEDIA_SESSION_LAST_OFFSET}=="?*", IMPORT{program}="/sbin/blkid -o udev -p -u noraid -O $env{ID_CDROM_MEDIA_SESSION_LAST_OFFSET} $tempnode"
# single-session CDs do not have ID_CDROM_MEDIA_SESSION_LAST_OFFSET
KERNEL=="sr*", ENV{ID_CDROM_MEDIA_TRACK_COUNT_DATA}=="?*", ENV{ID_CDROM_MEDIA_SESSION_LAST_OFFSET}=="", IMPORT{program}="/sbin/blkid -o udev -p -u noraid $tempnode"
KERNEL=="sr*", ENV{DISK_EJECT_REQUEST}!="?*", ENV{ID_CDROM_MEDIA_TRACK_COUNT_DATA}=="?*", ENV{ID_CDROM_MEDIA_SESSION_LAST_OFFSET}=="", IMPORT{program}="/sbin/blkid -o udev -p -u noraid $tempnode"
# probe filesystem metadata of disks
KERNEL!="sr*", IMPORT{program}="/sbin/blkid -o udev -p $tempnode"