Unit 'x86'	Package
[Overview][Procedures and functions][Index]	[#rtl]

fpIOperm

Set permission on IO ports.

Declaration

Source position: x86.pp line 49

function fpIOperm(

From: Cardinal;

Num: Cardinal;

Value: cint

):cint;

Description

FpIOperm sets permissions on Num ports starting with port From to Value. The function returns zero if the call was successful, a nonzero value otherwise.

Note:

This works ONLY as root.
Only the first 0x03ff ports can be set.
When doing a FpFork, the permissions are reset. When doing a FpExecVE they are kept.

Errors

Extended error information can be retrieved with FpGetErrno