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RG
1.Dd October 11, 1993
2.Dt UK 4
3.Os 386BSD/NetBSD
4.Sh NAME
5.Nm uk
6.Nd scsi user-level driver
7.Sh SYNOPSIS
8.Nm device-driver uk
9.Sh DESCRIPTION
10The
11.Xr uk
12driver provides support for a
13process to address devices on the scsi bus for which there is no configured
14driver.
15.Nm
16devices are numbered in the order they are found.
17.Pp
18A scsi adapter must also be separatly configured into the system
19before this driver makes sense.
20.Pp
21.Sh KERNEL CONFIGURATION
22If an count is given that number of
23.Nm
24devices will be configured into the kernel.
25
26
27.Pp
28.Sh IOCTLS
29The
30.Nm
31driver has no ioctls of it's own but rather acts as a medium for the
32generic
33.Xr scsi 4
34ioctls. These are described in
35.Em sys/scsiio.h.
36
37
38.Sh FILES
39.Bl -tag -width /dev/uk0XXX -compact
40.It Pa /dev/uk[0-255]
41uk{x} is the 'xth'unknown device found.
42.El
43.Sh DIAGNOSTICS
44All
45.Xr scsi 4
46debug ioclts work on
47.Nm
48devices.
49.Sh SEE ALSO
50.Xr sd 4
51.Xr st 4
52.Xr cd 4
53.Xr ch 4
54.Xr su 4
55.Xr scsi 4
56.Sh HISTORY
57The
58.Nm
59driver appeared in 386BSD 0.1
60