In writing a kernel module for an SA-1110 based system I attempt to access GPIOs by calling 'GPDR |= GPIO_GPIO(#)' to set the direction register, but this results in "Unable to handle kernel paging request at virtual address 90040004". Could I be forgetting to do something to prepare the kernel for that type of memory access? If anyone knows where some good documentation on the subject is located, or can explain the process of accessing the GPIOs in such a manner, it would be much appreciated.
Philip Jones <[EMAIL PROTECTED]> _______________________________________________ http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm Please visit the above address for information on this list.
