1.\" $OpenBSD: uk.4,v 1.9 2001/10/05 14:45:53 mpech Exp $ 2.\" $NetBSD: uk.4,v 1.3 1996/10/20 23:15:26 explorer Exp $ 3.\" 4.\" Copyright (c) 1996 5.\" Julian Elischer <julian@freebsd.org>. All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27.\" SUCH DAMAGE. 28.\" 29.Dd October 11, 1993 30.Dt UK 4 31.Os 32.Sh NAME 33.Nm uk 34.Nd scsi user-level driver 35.Sh SYNOPSIS 36.Nm uk* at scsibus? target ? lun ? 37.Sh DESCRIPTION 38The 39.Nm 40driver provides support for a 41process to address devices on the scsi bus for which there is no configured 42driver. 43.Pp 44A scsi adapter must also be separately configured into the system 45before this driver makes sense. 46.Sh KERNEL CONFIGURATION 47If a count is given that number of 48.Nm 49devices will be configured into the kernel. 50.Sh IOCTLS 51The 52.Nm 53driver has no ioctls of its own but rather acts as a medium for the 54generic 55.Xr scsi 4 56ioctls. 57These are described in 58.Em sys/scsiio.h. 59.Sh FILES 60.Bl -tag -width /dev/uk[0-255] -compact 61.It Pa /dev/uk[0-255] 62uk{x} is the 'xth' unknown device found. 63.El 64.Sh DIAGNOSTICS 65All 66.Xr scsi 4 67debug ioctls work on 68.Nm 69devices. 70.Sh SEE ALSO 71.Xr cd 4 , 72.Xr ch 4 , 73.Xr scsi 4 , 74.Xr sd 4 , 75.Xr st 4 , 76.Xr su 4 77.Sh HISTORY 78The 79.Nm 80driver appeared in 386BSD 0.1 81