.\"	$OpenBSD: iopsp.4,v 1.1 2001/07/01 20:24:58 mickey Exp $
.\"	$NetBSD: iopsp.4,v 1.2 2000/12/11 13:11:59 ad Exp $
.\"
.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Andrew Doran.
.\"
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.\" modification, are permitted provided that the following conditions
.\" are met:
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.\"    must display the following acknowledgement:
.\"        This product includes software developed by the NetBSD
.\"        Foundation, Inc. and its contributors.
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.\"    contributors may be used to endorse or promote products derived
.\"    from this software without specific prior written permission.
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.Dd November 8, 1999
.Dt IOPSP 4
.Os
.Sh NAME
.Nm iopsp
.Nd I2O SCSI port driver
.Sh SYNOPSIS
.Cd "iopsp* at iop? tid ?"
.Cd "scsibus* at iopsp?"
.Sh DESCRIPTION
The
.Nm
driver provides support for I2O SCSI bus adapter ports and child
peripherals.
.Pp
IOPs present each child peripheral attached to a bus adapter port as an
individual device.  In order to present the appearance of a bus, the
.Nm
driver groups child peripherals by controlling port.
.Pp
On IOPs containing a SCSI port and block or tape driver modules, some SCSI
devices may not be directly accessible.  For each inaccessible device, a
message will be displayed during configuration.  For example:
.Bd -literal
	iopsp0: target 0,0 (tid 70): in use by tid 47
.Ed
.Pp
Such devices will usually be indirectly accessible as block devices, either
individually or as part of an array.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr iop 4 ,
.Xr scsibus 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Nx 1.6 .
.Sh AUTHORS
The
.Nm
driver was written by Andrew Doran
.Aq ad@netbsd.org
and ported to
.Ox
by
.An Niklas Hallqvist Aq niklas@openbsd.org
and
.An Michael Shalayeff Aq mickey@openbsd.org .