1.\" $NetBSD: uk.4,v 1.11 2010/03/22 18:58:31 joerg Exp $ 2.\" 3.\" Copyright (c) 1996 4.\" Julian Elischer <julian@freebsd.org>. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.Dd October 11, 1993 29.Dt UK 4 30.Os 31.Sh NAME 32.Nm uk 33.Nd SCSI user-level driver 34.Sh SYNOPSIS 35.Cd "uk* at scsibus? target ? lun ?" 36.Sh DESCRIPTION 37The 38.Nm 39driver provides support for a process to address devices on the 40.Tn SCSI 41bus for which there is no configured driver. 42.Pp 43A 44.Tn SCSI 45adapter must also be separately configured into the system before 46this driver makes sense. 47.Sh KERNEL CONFIGURATION 48If a 49.Ar count 50is given, that number of 51.Nm 52devices will be configured into the 53.Nx 54kernel. 55.Sh IOCTLS 56The 57.Nm 58driver has no ioctls of its own but rather acts as a medium for the generic 59.Xr scsi 4 60ioctls. 61These are described in 62.In sys/scsiio.h . 63.Sh FILES 64.Bl -tag -width /dev/uk[0-255] -compact 65.It Pa /dev/uk[0-255] 66unknown 67.Tn SCSI 68devices. 69.El 70.Sh DIAGNOSTICS 71All 72.Xr scsi 4 73debug ioctls work on 74.Nm 75devices. 76.Sh SEE ALSO 77.Xr ioctl 2 , 78.Xr cd 4 , 79.Xr ch 4 , 80.Xr scsi 4 , 81.Xr sd 4 , 82.Xr ss 4 , 83.Xr st 4 84.Sh HISTORY 85The 86.Nm 87driver appeared in 88.Tn 386BSD 0.1 . 89