add a manpage for iosf(4)

diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index ad8d357..66d99f4 100644 (file)
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -1,4 +1,4 @@
-#      $OpenBSD: Makefile,v 1.840 2023/04/20 19:28:30 jcs Exp $
+#      $OpenBSD: Makefile,v 1.841 2023/04/23 00:44:44 dlg Exp $
 
 MAN=   aac.4 abcrtc.4 abl.4 ac97.4 acphy.4 acrtc.4 \
        acpi.4 acpiac.4 acpials.4 acpiasus.4 acpibat.4 \
@@ -47,7 +47,7 @@ MAN=  aac.4 abcrtc.4 abl.4 ac97.4 acphy.4 acrtc.4 \
        igc.4 iha.4 ihidev.4 iic.4 iicmux.4 ikbd.4 ims.4 imt.4 imxanatop.4 \
        imxdog.4 imxesdhc.4 imxgpc.4 imxgpio.4 imxiic.4 imxpciephy.4 \
        imxpwm.4 imxrtc.4 imxspi.4 imxsrc.4 imxtmu.4 imxuart.4 \
-       inet.4 inet6.4 inphy.4 iophy.4 ip.4 ip6.4 ipcomp.4 ipgphy.4 \
+       inet.4 inet6.4 inphy.4 iophy.4 iosf.4 ip.4 ip6.4 ipcomp.4 ipgphy.4 \
        ipmi.4 ips.4 ipsec.4 ipw.4 isa.4 isagpio.4 isapnp.4 islrtc.4 \
        it.4 itherm.4 iwi.4 iwn.4 iwm.4 iwx.4 ix.4 ixgb.4 ixl.4 \
        jmb.4 jme.4 jmphy.4 \

diff --git a/share/man/man4/dwiic.4 b/share/man/man4/dwiic.4
index 91a2efa..87ab0fa 100644 (file)
--- a/share/man/man4/dwiic.4
+++ b/share/man/man4/dwiic.4
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: dwiic.4,v 1.4 2017/11/16 21:08:42 jmc Exp $
+.\"    $OpenBSD: dwiic.4,v 1.5 2023/04/23 00:44:44 dlg Exp $
 .\"
 .\" Copyright (c) 2016 Jonathan Gray <jsg@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: November 16 2017 $
+.Dd $Mdocdate: April 23 2023 $
 .Dt DWIIC 4
 .Os
 .Sh NAME
@@ -31,9 +31,16 @@ driver supports the Synopsys DesignWare I2C controller for use
 with the
 .Xr iic 4
 framework.
+.Pp
+On systems using the Intel OnChip System Fabric,
+.Nm
+may need the
+.Xr iosf 4
+driver to coordinate access to the I2C bus.
 .Sh SEE ALSO
 .Xr acpi 4 ,
 .Xr iic 4 ,
+.Xr iosf 4 ,
 .Xr pci 4
 .Sh HISTORY
 The

diff --git a/share/man/man4/iosf.4 b/share/man/man4/iosf.4
new file mode 100644 (file)
index 0000000..29f8da7
--- /dev/null
+++ b/share/man/man4/iosf.4
@@ -0,0 +1,50 @@
+.\"    $OpenBSD: iosf.4,v 1.1 2023/04/23 00:44:44 dlg Exp $
+.\"
+.\" Copyright (c) 2023 David Gwynne <dlg@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
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: April 23 2023 $
+.Dt IOSF 4
+.Os
+.Sh NAME
+.Nm iosf
+.Nd Intel OnChip System Fabric device
+.Sh SYNOPSIS
+.Cd "iosf* at acpi?"
+.Cd "iosf* at pci?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support routines for platforms using the
+Intel OnChip System Fabric.
+.Pp
+The
+.Xr dwiic 4
+driver uses the MailBox Interface (MBI) provided by
+.Nm
+to coordinate access to I2C devices.
+.Sh SEE ALSO
+.Xr acpi 4 ,
+.Xr dwiic 4 ,
+.Xr pci 4
+.Sh HISTORY
+The
+.Nm
+device driver first appeared in
+.Ox 7.4 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An David Gwynne Aq Mt dlg@openbsd.org .