xenbus_directory
dir = xenbus_directory(XBT_NIL, dev->otherend, "vscsi-devs", &dir_n);
dir = xenbus_directory(XBT_NIL, info->dev->nodename, "vscsi-devs",
dir = xenbus_directory(XBT_NIL, bus->root, type, &dir_n);
dir = xenbus_directory(XBT_NIL, bus->root, "", &dir_n);
dir = xenbus_directory(XBT_NIL, nodename, "", &dir_n);
devclass = xenbus_directory(XBT_NIL, "device", "", &devclass_n);
dev = xenbus_directory(XBT_NIL, "device", devclass[i], &dev_n);
EXPORT_SYMBOL_GPL(xenbus_directory);
d = xenbus_directory(t, dir, node, &dir_n);
char **xenbus_directory(struct xenbus_transaction t,