APS_WRITE_0
if (aps_do_io(iot, ioh, iobuf, APS_WRITE_0, APS_READ_1)) {
if (aps_do_io(iot, ioh, iobuf, APS_WRITE_0, APS_READ_1))
if (aps_do_io(iot, ioh, iobuf, APS_WRITE_0, APS_READ_ALL))
aps_do_io(iot, ioh, iobuf, APS_WRITE_0, APS_READ_1);