Copyright (c) 1990 The Regents of the University of California.
All rights reserved.

This code is derived from software contributed to Berkeley by
the Systems Programming Group of the University of Utah Computer
Science Department.

%sccs.include.redist.man%

@(#)ct.4 5.1 (Berkeley) 06/29/90

C 7 ct - CS/80 cartridge tape interface "tape ct0 at hpib? slave ?" The cartridge tape interface as found in the 7946 and 9144 products provides a standard tape drive interface as described in mtio (4) with the following exceptions:

3 1. There is only one density.

3 2. Only the ``raw'' interface is supported.

3 3. The MTIOCTOP ioctl is limited. In particular, the command, MTFSR is not supported.

3 4. The MTIOCGET ioctl is not supported.

3 5. The record size for read and write operations must be between 1K and 64K inclusive.

Special files rct0 through rct3 refer to rewind on close interfaces to drives 0 to 3. Rct4 through rct7 refer to no-rewind interfaces. Rct8 through rct11 refer to streaming rewind on close interfaces. (Only 9144 type devices can stream.) Rct12 through rct15 refer to streaming no-rewind interfaces.

Read and writes of less than 1024 bytes will not behave as expected. mt(1), tar(1), tp(1), mtio(4).