Date: Fri, 9 Feb 2001 11:50:01 -0800 (PST) From: Julian Elischer <julian@elischer.org> To: freebsd-doc@freebsd.org Subject: Re: docs/24786: missing FILES descriptions in sa(4) Message-ID: <200102091950.f19Jo1K06123@freefall.freebsd.org>
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The following reply was made to PR docs/24786; it has been noted by GNATS.
From: Julian Elischer <julian@elischer.org>
To: Nik Clayton <nik@freebsd.org>
Cc: Rich Morin <rdm@cfcl.com>, FreeBSD-gnats-submit@freebsd.org,
julian@freebsd.org, mjacob@freebsd.org
Subject: Re: docs/24786: missing FILES descriptions in sa(4)
Date: Fri, 09 Feb 2001 11:44:06 -0800
Nik Clayton wrote:
>
> I'm copying Julian and Matt on this, who know more about this subsystem
> than I do.
>
> On Thu, Feb 01, 2001 at 03:51:47PM -0800, Rich Morin wrote:
> > >Number: 24786
> > >Category: docs
> > >Synopsis: missing FILES descriptions in sa(4)
>
> <...>
>
> > The sa(4) man page neglects to give definitions for
> > /dev/[en][r]sa0.
>
> Yes it does.
>
> The device name takes the form
>
> /dev/[n][e]sa[0-9]
>
> If it's just /dev/sa then the device will try and rewind the tape when
> the device is closed.
>
> If there's a leading 'n' then the device will not be rewound.
>
> If there's a leading 'e' then the device will be ejected on close.
>
> So if your application opens /dev/nesa0, and then closes the device, the
> tape will not be rewound, and the driver will tell the drive to eject
> the tape.
>
> This is all in the FILES section.
>
> 'r' means 'raw', but that isn't used on FreeBSD any more. It looks as
> if MAKEDEV wasn't updated to remove the code that creates the rsa*
> devices.
>
> > It also fails to describe the meaning
> > of the ".[0-3]" extensions (e.g., /dev/sa0.1).
>
> Covered in the SUB-MODES section in the man page (I think), although this is
> somewhat cryptic.
>
> We could probably add something like
>
> /dev/sa0.0 Corresponds to sub-mode 00
> /dev/sa0.1 Corresponds to sub-mode 01
> /dev/sa0.2 Corresponds to sub-mode 10
> /dev/sa0.3 Corresponds to sub-mode 11
>
> to the FILES section.
>
> Matt, Julian, any thoughts on
>
> 1. Adding the above to the FILES section.
>
> 2. Remove the code from MAKEDEV that creates /dev/rsa*
>
> If it's OK, I'll go and commit.
OK by me, but I haven't been hearding that code for about 5 years :-)
check who's doing all the commts therre these days... Probably Ken Merry
there was also a control device that allowed you to set teh modes for each
virtual device.
I assume that's still documented correctly..
>
> N
> --
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__--_|\ Julian Elischer
/ \ julian@elischer.org
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