AD9523_TRANSF_LEN
.rx_buf = &st->data[1].d8[4 - AD9523_TRANSF_LEN(addr)],
.len = AD9523_TRANSF_LEN(addr),
AD9523_CNT(AD9523_TRANSF_LEN(addr)) |
(8 * (3 - AD9523_TRANSF_LEN(addr))));
.tx_buf = &st->data[1].d8[4 - AD9523_TRANSF_LEN(addr)],
.len = AD9523_TRANSF_LEN(addr),
AD9523_CNT(AD9523_TRANSF_LEN(addr)) |