S5K4AA_ROWSTART_LO
{SENSOR, S5K4AA_ROWSTART_LO, 0x29, 0x00},
{SENSOR, S5K4AA_ROWSTART_LO, 0x09, 0x00},
err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);