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I386_GET_IOPERM (2) | System calls | Unix Manual Pages | :man

NAME

i386_get_ioperm, i386_set_ioperm - manage per-process access to the i386 I/O port space

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
Authors

LIBRARY


.Lb libc

SYNOPSIS


.In machine/sysarch.h int i386_get_ioperm "unsigned int start" "unsigned int *length" "int *enable" int i386_set_ioperm "unsigned int start" "unsigned int length" "int enable"

DESCRIPTION

The i386_get_ioperm system call will return the permission for the process’ I/O port space in the *enable argument. The port range starts at start and the number of contiguous entries will be returned in *length.

The i386_set_ioperm system call will set access to a range of I/O ports described by the start and length arguments to the state specified by the enable argument.

RETURN VALUES


.Rv -std

ERRORS

The i386_get_ioperm and i386_set_ioperm system calls will fail if:
[EINVAL]
An invalid range was specified by the start or length arguments.
[EPERM]
The caller of i386_set_ioperm was not the superuser.

SEE ALSO

io(4)

AUTHORS


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