ad3552r_read_reg
ret = ad3552r_read_reg(dac, addr, ®);
err = ad3552r_read_reg(dac, AD3552R_REG_ADDR_CH_DAC_24B(ch),
err = ad3552r_read_reg(dac, AD3552R_REG_ADDR_POWERDOWN_CONFIG,
err = ad3552r_read_reg(dac, AD3552R_REG_ADDR_SCRATCH_PAD, &val);
err = ad3552r_read_reg(dac, AD3552R_REG_ADDR_SCRATCH_PAD, &val);
err = ad3552r_read_reg(addr->dac, addr->addr, &val);
err = ad3552r_read_reg(dac, AD3552R_REG_ADDR_PRODUCT_ID_L, &val);
err = ad3552r_read_reg(dac, AD3552R_REG_ADDR_PRODUCT_ID_H, &val);