-int msmcan_init_obj_data(struct chip_t *chip, int objnr);
-void msmcan_write_register(unsigned data, unsigned long address);
-unsigned msmcan_read_register(unsigned long address);
+int msmcan_init_obj_data(struct canchip_t *chip, int objnr);
+void msmcan_write_register(unsigned data, can_ioptr_t address);
+unsigned msmcan_read_register(can_ioptr_t address);