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--- udevadm [2018/04/09 02:02]
beandog
+++ udevadm [2018/04/09 02:07] (current)
beandog
@@ Line 1: / Line 1: @@
 ====== udevadm ======
+  * [[udev]]
 You can use udevadm to see the variables set by udev for a device. This is helpful if you want to get information about the device, based on whether it has a DVD or a CD in there, for example.
@@ Line 14: / Line 16: @@
 That's what I use when doing my onevent trayclose calls.
+In ''/etc/udev/rules.d/70-persistent-cd.rules'' I generate a symlink to ''/dev/dvd'' and ''/dev/bluray'', as well as call ''onevent.trayclose'' when there is a DVD detected in the drive on an event change (tray closed from being open).
+<code>
+# Sony Blu-ray
+SUBSYSTEM=="block", ENV{ID_MODEL}=="ATAPI_iHOS104", ENV{ID_REVISION}=="WL0D", SYMLINK+="bluray", ENV{GENERATED}="1"
+SUBSYSTEM=="block", ENV{ID_MODEL}=="ATAPI_iHOS104", ENV{ID_REVISION}=="WL0D", SYMLINK+="dvd", ENV{GENERATED}="1"
+SUBSYSTEM=="block", ENV{ID_MODEL}=="ATAPI_iHOS104", ENV{ID_CDROM_MEDIA_DVD}=="1", ENV{ID_CDROM_MEDIA_STATE}=="complete", RUN+="/usr/local/bin/onevent.trayclose"
+</code>
+For completion's sake, here's ''onevent.trayclose'':
+<code>
+#!/bin/bash
+mount -o ro -t udf $DEVNAME &> /dev/null
+if [[ -z "$ID_FS_LABEL" ]]; then ID_FS_LABEL=$(busybox volname $DEVNAME); fi
+echo "/usr/bin/sudo -u steve /home/steve/Videos/Rip-o-Matic/spincycle $DEVNAME $ID_FS_LABEL" | at now
+</code>

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