Messages in this thread | | | From | Benjamin Herrenschmidt <> | Date | Fri, 26 Sep 2003 09:27:05 +0200 | Subject | Re: How do I access ioports from userspace? |
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On Fri, 2003-09-26 at 07:26, Frank v Waveren wrote: > On Thu, Sep 25, 2003 at 04:03:51PM -0700, Matthew Dharm wrote: > > I'd like to be able to access some ioports to some custom hardware directly > > from userspace, without creating a specialized kernel-level driver. Is > > there a way to do that? > Either use /dev/port, or if it's performance critical (but not performance > critical enough to do in kernelspace), use ioperm/iopl and inb/outb.
Simple note: the above will work on x86 only...
Ben.
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