Hi list, If we map device memory into user space using mmap(), the user will be able to do read / write into device using normal memory handling routines, right? But as mentioned in LDD3, should appropriate readb() / writeb() routines be actually used to read / write into device memory? Thanks, Dan - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs