From 2c6802e80f2bc7be660981b183fe89ecd72061ce Mon Sep 17 00:00:00 2001
From: aiju <devnull@localhost>
Date: Fri, 15 Apr 2011 21:01:29 +0200
Subject: added io/seg utility

---
 sys/man/1/io | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 sys/man/1/io

(limited to 'sys/man/1/io')

diff --git a/sys/man/1/io b/sys/man/1/io
new file mode 100644
index 000000000..e96a60be0
--- /dev/null
+++ b/sys/man/1/io
@@ -0,0 +1,44 @@
+.TH IO 1
+.SH NAME
+io \- access PC I/O registers
+.SH SYNOPSIS
+.B io
+[
+.B -WLMrw
+]
+.I address
+[
+.I value
+]
+.SH DESCRIPTION
+.I io
+accesses PC I/O space.
+The operation to be performed is selected with
+.B -r
+or
+.B -w
+for reading or writing, respectively.
+The default operation size is a byte.
+C style notation for integers (e.g.
+.B 0x42
+or
+.BR 023 )
+is accepted for the
+.I address
+and
+.I value
+parameters.
+.PP
+.TP
+.B  -W
+Perform a word (16 bit) operation.
+.TP
+.B  -L
+Perform a long / double word (32 bit) operation.
+.TP
+.B  -M
+Access a 64 bit wide machine specific register (MSR).
+.SH SOURCE
+.B /sys/src/cmd/io.c
+.SH SEE ALSO
+.IR seg (1)
-- 
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