Dear List, I would like to use the request_region function in the kernel. I if use in a module there is no problem, but if I put it into the kernel, it hangs during the boot. Can anyone help me how to use it? It is a 2.4.7 kernel for a PPC platform. I added the following lines to the arch/ppc/kernel/m8xx_setup.c in the m8xx_get_rtc_time function : if(!rtc_vm_base) if (!request_region(IO_ADR_RTC, IO_LEN_RTC, "k14_rtc")) printk("Can't request IO ports\n"); rtc_vm_base = ioremap(IO_ADR_RTC, IO_LEN_RTC); If I comment the first three lines it works nicely, but I'd like to allocate this IO region not to allow other modules to modify the chip settings. How can I do that? TIA && Good byte! -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/