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    SubjectRe: How do I access ioports from userspace?
    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.

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