-// useless with lpc17xx:
-// if (!(IO0PIN&P0_SJA1000_INT_PIN)) //INT PIN is inverted
-// chip->chipspecops->irq_handler(0,chip);
+#ifdef CONFIG_OC_LINCAN_CARD_ul_usb1
+ /* polled IRQ mode for ul_usb1 board*/
+ if (!(IO0PIN&P0_SJA1000_INT_PIN)) /* INT PIN is inverted */
+ chip->chipspecops->irq_handler(0,chip);
+#endif