+
+static int udev_handle_dev_change(struct pb_udev *udev, struct udev_device *dev)
+{
+ struct discover_device *ddev;
+ const char *name, *node;
+
+ name = udev_device_get_sysname(dev);
+ node = udev_device_get_devnode(dev);
+
+ /* we're only interested in CDROM change events at present */
+ if (!udev_device_get_property_value(dev, "ID_CDROM"))
+ return 0;
+
+ /* handle CDROM eject requests */
+ if (udev_device_get_property_value(dev, "DISK_EJECT_REQUEST")) {
+ bool eject = false;
+
+ pb_debug("udev: eject request\n");
+
+ /* If the device is mounted, cdrom_id's own eject request may
+ * have failed. So, we'll need to do our own here.
+ */
+ ddev = device_lookup_by_id(udev->handler, name);
+ if (ddev) {
+ eject = ddev->mounted;
+ udev_handle_dev_remove(udev, dev);
+ }
+
+ if (eject)
+ cdrom_eject(node);
+
+ return 0;
+ }
+
+ if (udev_device_get_property_value(dev, "DISK_MEDIA_CHANGE")) {
+ if (cdrom_media_present(node))
+ return udev_handle_dev_add(udev, dev);
+ else
+ return udev_handle_dev_remove(udev, dev);
+ }
+
+ return 0;
+}
+