ccw_io_region
sizeof(struct ccw_io_region), 0,
sizeof(struct ccw_io_region), NULL);
struct ccw_io_region *io_region = private->io_region;
struct ccw_io_region *region;
struct ccw_io_region *region;
info->size = sizeof(struct ccw_io_region);
struct ccw_io_region *io_region;