Problem with ioperm????
 

Hello,

I hava developed a driver to comunicate with pc/104 board. No problems to check_region and no problems to request_region.

But if have tried to read a byte (inb) always return me a 0xFF, but value must be other.

I have search in google about port access permission (IOPERM and IOPL), but when I try to compile my driver with this functions, Compiler return me a error:

I have this includes in my code:

#include <unistd.h>
#include <sys/io.h>

I use kernel 2.6.24.7-rt20.

Any advice