On Wed, 3 Feb 1999, David Wright wrote: > I don't think it would be sufficient to be root. AIUI, when > any non-kernel process is running, its privilege level is > set so it can't do any I/O etc. itself. The root setuid programs in Linux on Intel x86 may perform I/O, however they may not use interrupts. (This is the way how the "user space drivers" work). Wojtek Zabolotny wzab@ise.pw.edu.pl