Eric Clément (clement.eric@xxxxxxxxx) wrote: > Hi, > > I know the base address (I/O memory) of my device, but I don't know > how to write information to the device. > > Which fonction shoud I use : > > outb, writeb or ... ? I think you should use outb(); You can see how is declared writeb() for x86 : http://lxr.linux.no/source/include/asm-i386/io.h#L165 But I think you should give more information to us to be able to help you. - Christophe -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/