iqs5xx_read_burst
error = iqs5xx_read_burst(client, reg, &val_buf, sizeof(val_buf));
error = iqs5xx_read_burst(client, IQS5XX_PROD_NUM,
error = iqs5xx_read_burst(client, IQS5XX_EXP_FILE,
error = iqs5xx_read_burst(client, IQS5XX_SYS_INFO0,