IOperm

Set permission on IO ports

Declaration

Source position: oldlinux.pp line 1552

function IOperm(

From: Cardinal;

Num: Cardinal;

Value: LongInt

):Boolean;

Description

IOperm sets permissions on Num ports starting with port From to Value. The function returns True if the call was successfull, False otherwise.

Note:

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

Errors

Errors are returned in LinuxError

Notes

 No notes exist for this page yet.