cache_load_desc
cache_load_desc(DM_ALIAS, dp, ap->alias, NULL, &error);
cache_load_desc(DM_BUS, bp, NULL, NULL, &error);
cache_load_desc(DM_CONTROLLER, cp, NULL, NULL, &error);
void cache_load_desc(int type, void *gp, char *name,
cache_load_desc(DM_DRIVE, dp, NULL, NULL, &error);
cache_load_desc(DM_MEDIA, dp, mname, NULL, &error);
cache_load_desc(DM_PARTITION, dp,
cache_load_desc(DM_PATH, cp->paths[i], NULL, NULL, &error);
cache_load_desc(DM_SLICE, dp, devpath, mname, &error);