Home
Main website
Display Sidebar
Hide Ads
Recent Changes
View Source:
outb(2)
Edit
PageHistory
Diff
Info
LikePages
!!NAME outb, outw, outl, outsb, outsw, outsl - port output%%% inb, inw, inl, insb, insw, insl - port input%%% outb_p, outw_p, outl_p, inb_p, inw_p, inl_p - paused I/O%%% !!DESCRIPTION This family of functions is used to do low level port input and output. They are primarily designed for internal kernel use, but can be used from user space, given the following information ''in addition'' to that given in ''outb(9)'' You compile with __-O__ or __-O2__ or similar. The functions are defined as inline macros, and will not be substituted in without optimization enabled, causing unresolved references at link time. You use ''ioperm(2)'' or alternatively ''iopl(2)'' to tell the kernel to allow the user space application to access the I/O ports in question. Failure to do this will because the application to receive a segmentation fault. !!CONFORMING TO __outb__ and friends are hardware specific. The ''port'' and ''value'' arguments are in the opposite order to most DOS implementations. !!SEE ALSO ioperm(2), iopl(2)
One page links to
outb(2)
:
Man2o
This page is a man page (or other imported legacy content). We are unable to automatically determine the license status of this page.
