DPOT_AD5270_1_2_4_RDAC
value = dpot_read_r8d16(dpot, DPOT_AD5270_1_2_4_RDAC << 2);
(DPOT_AD5270_1_2_4_RDAC << 2) |
return dpot_write_r8d8(dpot, (DPOT_AD5270_1_2_4_RDAC << 2) |