Hi Julia, > Actually, I later realized that one can also use the result of > request_mem_region in place of res. Even though it is not the same > structure, it has the same start and end field information, which is the > only information that is used. But I haven't had a chance to send a patch > that follows that strategy. So if it is preferred to keep res, then that > can be done. If you look at the driver then you will see that it will use wdt_base to control the device: static void __iomem *wdt_base; ... res=platform_get_resource(pdev, IORESOURCE_MEM, 0); ... wdt_base = ioremap(res->start, size); So the memory resource is only used for: 1) requesting the memory region 2) ioremapping the memory so that we can use the registers. My opinion: res can go out so that wdt_mem and wdt_irq get similar platform resource info. Kind regards, Wim. -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html