inb/outb could be used from the usr space on x86 class PC-computer to access to io ports this is what i assume that you are trying
You need to compile the program with -O option (expantion of Inline function ) To perform io operation on ports ioprem/iopl system call must be used (To get permissio to perform io operation) Program must run as root on non 86 platform try using /dev/port device file in the application misbah Arnd Bergmann wrote: > > On Saturday 06 October 2007, Benjamin Herrenschmidt wrote: >> On Sun, 2007-10-07 at 00:47 +0400, Peter Lemenkov wrote: >> > Hello All! >> > I can't compile one small software title because of lack <sys/io.h> >> > and inb/outb macros. What sould I do to overcome this obstacle? >> > >> > My linux distro is Fedora 7 if it is matter. >> >> They don't exist in user space on non-x86. You have to do things >> differently. What is your software trying to do ? If it's trying to >> access a PCI device IO space, you probably want to mmap it in sysfs and >> write your own accessors with appropriate memory barriers. > > All cases where I've seen application software use <sys/io.h>, there was > actually a full device driver in the kernel that already exported a > high-level interface to user space. If that's the case here, the > application > should use that instead of sysfs. > > Arnd <>< > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-dev > > -- View this message in context: http://www.nabble.com/Where-are-inb-outb-macros--tf4581135.html#a13091078 Sent from the linuxppc-dev mailing list archive at Nabble.com. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
