Update for recent smbus changes.

1 files changed, 29 insertions, 14 deletions

diff --git a/share/man/man4/piixpm.4 b/share/man/man4/piixpm.4
index 4d31f61ead9..42b02a1c1c5 100644
--- a/share/man/man4/piixpm.4
+++ b/share/man/man4/piixpm.4
@@ -1,6 +1,6 @@
-.\"	$OpenBSD: piixpm.4,v 1.3 2005/09/30 20:34:24 jaredy Exp $
+.\"	$OpenBSD: piixpm.4,v 1.4 2005/12/25 09:08:10 grange Exp $
 .\"
-.\" Copyright (c) 2004 Alexander Yurchenko <grange@openbsd.org>
+.\" Copyright (c) 2004, 2005 Alexander Yurchenko <grange@openbsd.org>
 .\"
 .\" Permission to use, copy, modify, and distribute this software for any
 .\" purpose with or without fee is hereby granted, provided that the above
@@ -19,31 +19,46 @@
 .Os
 .Sh NAME
 .Nm piixpm
-.Nd Intel PIIX Power Management
+.Nd Intel PIIX and compatible SMBus controller
 .Sh SYNOPSIS
 .Cd "piixpm* at pci?"
+.Cd "iic* at piixpm?"
 .Sh DESCRIPTION
 The
 .Nm
-driver provides support for the Intel PIIX Power Management controller.
-Only power management timer is supported for now.
+driver provides support for the Intel PIIX and compatible SMBus controllers
+to be used with the
+.Xr iic 4
+framework.
+.Pp
+Supported chipsets:
+.Bl -bullet -compact -offset indent
+.It
+Intel 82371AB PIIX4, 82440MX
+.It
+ServerWorks OSB4, CSB5, CSB6
+.El
 .Sh SEE ALSO
+.Xr iic 4 ,
 .Xr intro 4 ,
 .Xr pci 4
 .Sh HISTORY
 The
 .Nm
 driver first appeared in
-.Ox 3.7 .
+.Ox 3.7
+to provide support for the power management (ACPI) timer.
+In
+.Ox 3.9
+power management support was dropped in favor of
+.Xr acpitimer 4
+driver and SMBus functionality was added.
 .Sh AUTHORS
 .An -nosplit
-The
+Current
 .Nm
 driver was written by
-.An Poul-Henning Kamp Aq phk@FreeBSD.ORG
-for
-.Fx
-and ported to
-.Ox
-by
-.An Thorsten Lockert Aq tholo@openbsd.org .
+.An Alexander Yurchenko Aq grange@openbsd.org .
+.Sh BUGS
+The driver doesn't support I2C commands with data buffer size more
+than 2 bytes.