Re: [PARPORT] Is the pt driver in kernel 2.2 different than in 2.0?


Ian Soboroff (ian@cs.umbc.edu)
16 Feb 2000 09:15:04 -0500


Barnet Wagman <wagman@enteract.com> writes:

> Does the pt driver in kernel 2.2 have the same functionality as the one
> in 2.0?
>
> I'm currently attempting to use pt with an HP 5gb parallel port
> tape drive under 2.0. It seems to work quite will but with limited
> funtionality; e.g. tar [cvx] works but tar [ar] does not.

yes, the 2.0 and 2.2 drivers will be pretty much the same with respect
to the problem you're referring to... the only mt_op that is
implemented is 'rewind', which means that programs can't write
filemarks, do fast-forwards, seek to filemarks, etc.

currently you won't be able to append to an archive. to skip over an
archive and write another one, use 'tar tf /dev/npt0 >/dev/null' and
then 'tar cf /dev/npt0 ...'

ian

-- 
----
Ian Soboroff                                       ian@cs.umbc.edu
University of MD Baltimore County      http://www.cs.umbc.edu/~ian

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