[src/trunk]: src/share/man/man9 Add mention of the _IO() ioctl type: ioctls t...

[atatat <atatat%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/75dea12adfb1
branches:  trunk
changeset: 514900:75dea12adfb1
user:      atatat <atatat%NetBSD.org@localhost>
date:      Thu Sep 13 17:19:55 2001 +0000

description:
Add mention of the _IO() ioctl type: ioctls that just frob something
in the kernel, but don't copy anything in or out.

diffstat:

 share/man/man9/ioctl.9 |  5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diffs (19 lines):

diff -r 85bd6442c5d3 -r 75dea12adfb1 share/man/man9/ioctl.9
--- a/share/man/man9/ioctl.9    Thu Sep 13 16:18:53 2001 +0000
+++ b/share/man/man9/ioctl.9    Thu Sep 13 17:19:55 2001 +0000
@@ -1,4 +1,4 @@
-.\" $NetBSD: ioctl.9,v 1.10 2001/09/10 23:36:57 wiz Exp $
+.\" $NetBSD: ioctl.9,v 1.11 2001/09/13 17:19:55 atatat Exp $
 .\"
 .\" Copyright (c) 1999  The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -61,6 +61,9 @@
 .It Fn fun
 a macro which can be one of
 .Bl -tag -width _IOWR
+.It _IO
+the call is a simple message to the kernel by itself.  It does not copy
+anything into the kernel, nor does it want anything back.
 .It _IOR
 the call only reads parameters from the kernel and does not
 pass any to it