The Ftape Installation Guide - Ioctls
MTIOCTOP
The MTIOCTOP
ioctl provides control over various tape operations.
The following list may be incomplete and covers at most those operations
that are supported by the zftape driver. Please refer also to the file
/usr/include/sys/mtio.h. Most of the operations below can be send
to a tape device using the mt
program, please refer to the manual
page of the mt program contained in the ftape `./contrib/gnumt
'
directory (`man 1 ftmt
')(1). Some of these commands take an optional
numerical argument which defaults to `1
' when using the mt
program. Each of the explanations below contains a short example how to
use the mt
program to send the command to the drive.
MTRESET | Reset drive and driver |
MTFSF | Skip forward over file marks |
MTBSF | Skip backward over file marks |
MTFSR | Skip forward over tape records |
MTBSR | Skip backwards over tape records |
MTWEOF | Write file mark |
MTREW | Rewind cartridge |
MTOFFL | Put drive off-line |
MTNOP | No op, set status |
MTRETEN | Retension the cartridge |
MTBSFM | Skip backwards over file marks |
MTFSFM | Skip forward over tape file marks |
MTEOM | Skip to end of recorded area |
MTERASE | Erase cartridge |
MTSETBLK | Setting the block size (zftape) |
MTSETDENSITY | Setting the debugging level (zftape) |
MTSEEK | Seek to absolute tape block (zftape) |
MTTELL | Request tape position, buggy |
MTSETDRVBUFFER | Set amount of driver memory (zftape) |
MTCOMPRESSION | Switch compression on and off (zftape) |
(1) The explanations below are
partially stolen from the manual page of the mt
program contained
in the GNU cpio package
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