-int pcccan_init_obj_data(struct chip_t *chip, int objnr);
-void pcccan_write_register(unsigned data, unsigned long address);
-unsigned pcccan_read_register(unsigned long address);
+int pcccan_init_obj_data(struct canchip_t *chip, int objnr);
+void pcccan_write_register(unsigned data, can_ioptr_t address);
+unsigned pcccan_read_register(can_ioptr_t address);