+
+static ssize_t
+sdev_show_access_state(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ unsigned char access_state;
+ const char *access_state_name;
+
+ if (!sdev->handler)
+ return -EINVAL;
+
+ access_state = (sdev->access_state & SCSI_ACCESS_STATE_MASK);
+ access_state_name = scsi_access_state_name(access_state);
+
+ return sprintf(buf, "%s\n",
+ access_state_name ? access_state_name : "unknown");
+}
+static DEVICE_ATTR(access_state, S_IRUGO, sdev_show_access_state, NULL);
+
+static ssize_t
+sdev_show_preferred_path(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+
+ if (!sdev->handler)
+ return -EINVAL;
+
+ if (sdev->access_state & SCSI_ACCESS_STATE_PREFERRED)
+ return sprintf(buf, "1\n");
+ else
+ return sprintf(buf, "0\n");
+}
+static DEVICE_ATTR(preferred_path, S_IRUGO, sdev_show_preferred_path, NULL);