On Mon, May 11, 2009 at 03:56, leoyu1112 <wineforum-user@xxxxxxxxxx> wrote: > Hi there, > > Does anyone have the experience of access/control each pins of printer port by calling 3rd party dll file? It works well on windows XP/2000 O.S. but seems have no function under wine (I installed 1.0.1) > If it wqorks by using direct IN and OUT commands, you would need to run an iopl / ioperm call beforehand. This probably requires root access, and usising direct hardware I/O without a driver in a multi-user operating system is a bad idea.... Some man pages: http://linux.die.net/man/2/ioperm http://linux.die.net/man/2/iopl The least risky way is probably a wrapper that gets port permissions as root, drops its root permissions, and executes Wine with the program. The second part of this page explains how to get a Linux application to do Direct I/O. http://as6edriver.sourceforge.net/Parallel-Port-Programming-HOWTO/accessing.html http://www.faqs.org/docs/Linux-mini/IO-Port-Programming.html#ss2.1 Gert
