(For others who, like me, didn't know this one): Ioperm sets the port access permission bits for the process for num bytes starting from port address from to the value turn_on. The use of ioperm requires root privileges. As far as I know, this doesn't exist. You have to write a kernel driver for this. Let me ask - what are you doing? On 2003-10-22 at 17:41:31 [-0400], Jan-Rixt Van Hoye wrote: > Hi! > > Can someone tell me what function I can use in (Open)Beos instead of the > function 'i386_set_ioperm' from BSD or 'ioperm' from Linux? And please tell > me in what library I can find it. > > > thx > JR