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Date:      Fri, 04 Oct 2002 15:30:19 +0200
From:      "Per olof Ljungmark" <peo@intersonic.se>
To:        Matthew Seaman <m.seaman@infracaninophile.co.uk>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: non-rewinding, non-compressing tape device
Message-ID:  <5.1.1.6.0.20021004152911.02764260@mail.inter-sonic.com>
In-Reply-To: <20021004131238.GD31681@happy-idiot-talk.infracaninophi>
References:  <5.1.1.6.0.20021004140817.026d88e0@mail.inter-sonic.com> <5.1.1.6.0.20021004140817.026d88e0@mail.inter-sonic.com>

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At 14:12 10/4/2002 +0100, Matthew Seaman wrote:
>On Fri, Oct 04, 2002 at 02:10:00PM +0200, Per olof Ljungmark wrote:
> > Is there a non-rewinding, non-compressing tape device on FreeBSD?
>
> From the sa(4) man page:
>
>FILES
>      /dev/[n][e]sa[0-9]  general form:
>      /dev/sa0            Rewind on close
>      /dev/nsa0           No rewind on close
>      /dev/esa0           Eject on close (if capable)
>      /dev/sa0.ctl        Control mode device (to examine state while another
>                          program is accessing the device, e.g.).
>
>BUGS
>      [...]
>
>      Fine grained density and compression mode support that is bound to spe-
>      cific device names needs to be added.
>
>
> > Also, is there a place where the stuff in /dev is documented?
>
>Devices are documented in secion 4 of the man pages. Generally there
>will be a man page for pretty much any device under /dev: just strip
>off any unit numbers or other extra characters.  Sometimes the man
>page is listed under the kernel option required to enable it.
>
>eg:
>
>     /dev/zero    --> zero(4)
>     /dev/sa0     --> sa(4)
>     /dev/nsa0    --> sa(4)
>     /dev/da0s1a  --> da(4)
>     /dev/dsp0.0  --> snd(4) a.k.a. pcm(4)
>
>         Cheers,
>
>         Matthew
>
>--
>Dr Matthew J Seaman MA, D.Phil.                       26 The Paddocks
>                                                       Savill Way
>                                                       Marlow
>Tel: +44 1628 476614                                  Bucks., SL7 1TH UK

Thanks Matthew, I read sa(8), maybe I'll learn sometime..


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