From 3d08cd331c1adcf0d917392f7e527b3f00511748 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 24 May 2024 06:52:22 +0200 Subject: Merging upstream version 6.8. Signed-off-by: Daniel Baumann --- man2/ioperm.2 | 105 ---------------------------------------------------------- 1 file changed, 105 deletions(-) delete mode 100644 man2/ioperm.2 (limited to 'man2/ioperm.2') diff --git a/man2/ioperm.2 b/man2/ioperm.2 deleted file mode 100644 index dd62ce5..0000000 --- a/man2/ioperm.2 +++ /dev/null @@ -1,105 +0,0 @@ -.\" Copyright (c) 1993 Michael Haardt -.\" (michael@moria.de) -.\" Fri Apr 2 11:32:09 MET DST 1993 -.\" -.\" SPDX-License-Identifier: GPL-2.0-or-later -.\" -.\" Modified Sat Jul 24 15:12:05 1993 by Rik Faith -.\" Modified Tue Aug 1 16:27 1995 by Jochen Karrer -.\" -.\" Modified Tue Oct 22 08:11:14 EDT 1996 by Eric S. Raymond -.\" Modified Mon Feb 15 17:28:41 CET 1999 by Andries E. Brouwer -.\" Modified, 27 May 2004, Michael Kerrisk -.\" Added notes on capability requirements -.\" -.TH ioperm 2 2023-10-31 "Linux man-pages 6.7" -.SH NAME -ioperm \- set port input/output permissions -.SH LIBRARY -Standard C library -.RI ( libc ", " \-lc ) -.SH SYNOPSIS -.nf -.B #include -.P -.BI "int ioperm(unsigned long " from ", unsigned long " num ", int " turn_on ); -.fi -.SH DESCRIPTION -.BR ioperm () -sets the port access permission bits for the calling thread for -.I num -bits starting from port address -.IR from . -If -.I turn_on -is nonzero, then permission for the specified bits is enabled; -otherwise it is disabled. -If -.I turn_on -is nonzero, the calling thread must be privileged -.RB ( CAP_SYS_RAWIO ). -.P -Before Linux 2.6.8, -only the first 0x3ff I/O ports could be specified in this manner. -For more ports, the -.BR iopl (2) -system call had to be used (with a -.I level -argument of 3). -Since Linux 2.6.8, 65,536 I/O ports can be specified. -.P -Permissions are inherited by the child created by -.BR fork (2) -(but see NOTES). -Permissions are preserved across -.BR execve (2); -this is useful for giving port access permissions to unprivileged -programs. -.P -This call is mostly for the i386 architecture. -On many other architectures it does not exist or will always -return an error. -.SH RETURN VALUE -On success, zero is returned. -On error, \-1 is returned, and -.I errno -is set to indicate the error. -.SH ERRORS -.TP -.B EINVAL -Invalid values for -.I from -or -.IR num . -.TP -.B EIO -(on PowerPC) This call is not supported. -.TP -.B ENOMEM -.\" Could not allocate I/O bitmap. -Out of memory. -.TP -.B EPERM -The calling thread has insufficient privilege. -.SH VERSIONS -glibc has an -.BR ioperm () -prototype both in -.I -and in -.IR . -Avoid the latter, it is available on i386 only. -.SH STANDARDS -Linux. -.SH HISTORY -Before Linux 2.4, -permissions were not inherited by a child created by -.BR fork (2). -.SH NOTES -The -.I /proc/ioports -file shows the I/O ports that are currently allocated on the system. -.SH SEE ALSO -.BR iopl (2), -.BR outb (2), -.BR capabilities (7) -- cgit v1.2.3