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Date: Tue, 19 Feb 2002 12:56:44 -0800
From: Andrew Morton <akpm@zip.com.au>
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To: Pavel Machek <pavel@ucw.cz>
CC: kernel list <linux-kernel@vger.kernel.org>
Subject: Re: ENOTTY from ext3 code?
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Pavel Machek wrote:
> 
> Hi!
> 
> ext3/ioctl.c:
> 
> ...
>         return -ENOTTY;
> 
> Does it really make sense to return "not a typewriter" from ext3
> ioctl?

ERRORS
       ...

       ENOTTY d  is  not  associated  with  a  character  special
              device.

       ENOTTY The specified request does not apply to the kind of
              object that the descriptor d references.


Lots and lots of ioctls return ENOTTY when passed a request
which they don't understand.  There's probably a great reason
for this, but I can't immediately think what it might be.

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