xref: /csrg-svn/share/man/man4/man4.hp300/ct.4 (revision 62968)
1.\" Copyright (c) 1990, 1991, 1993
2.\"	The Regents of the University of California.  All rights reserved.
3.\"
4.\" This code is derived from software contributed to Berkeley by
5.\" the Systems Programming Group of the University of Utah Computer
6.\" Science Department.
7.\"
8.\" %sccs.include.redist.man%
9.\"
10.\"     @(#)ct.4	8.1 (Berkeley) 06/09/93
11.\"
12.Dd
13.Dt CT 4 hp300
14.Os
15.Sh NAME
16.Nm \&ct
17.Nd
18.Tn CS/80
19cartridge tape interface
20.Sh SYNOPSIS
21.Cd "tape ct0 at hpib? slave ?"
22.Sh DESCRIPTION
23The cartridge tape interface as found in the 7946 and 9144 products
24provides a standard tape drive interface as described in
25.Xr mtio 4
26with the following exceptions:
27.Bl -enum
28.It
29There is only one density.
30.It
31Only the
32.Dq raw
33interface is supported.
34.It
35The
36.Dv MTIOCTOP
37.Xr ioctl 2
38is limited.
39In particular, the command,
40.Dv MTFSR
41is not supported.
42.It
43The
44.Dv MTIOCGET
45.Xr ioctl
46is not supported.
47.It
48The record size for read and write operations must be between
491K and 64K inclusive.
50.El
51.Pp
52Special files
53.Pa rct0
54through
55.Pa rct3
56refer to rewind on close interfaces to drives 0 to 3.
57Files
58.Pa rct4
59through
60.Pa rct7
61refer to no-rewind interfaces.
62Files
63.Pa rct8
64through
65.Pa rct11
66refer to streaming rewind on close interfaces. (Only 9144 type devices
67can stream.)
68Lastly,
69.Pa rct12
70through
71.Pa rct15
72refer to streaming no-rewind interfaces.
73.Sh SEE ALSO
74.Xr mt 1 ,
75.Xr tar 1 ,
76.Xr tp 1 ,
77.Xr mtio 4 .
78.Sh BUGS
79Read and writes of less than 1024 bytes will not behave as expected.
80