int sja1000_start_chip(struct chip_t *chip);
int sja1000_stop_chip(struct chip_t *chip);
can_irqreturn_t sja1000_irq_handler(int irq, void *dev_id, struct pt_regs *regs);
int sja1000_start_chip(struct chip_t *chip);
int sja1000_stop_chip(struct chip_t *chip);
can_irqreturn_t sja1000_irq_handler(int irq, void *dev_id, struct pt_regs *regs);