fpIOperm

Set permission on IO ports

Declaration

Source position: x86.pp line 41

Description

FpIOperm sets permissions on Num ports starting with port From to Value. The function returns zero if the call was successfull, 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