From: Tomas Carnecky <tom@dbservice.com>
To: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Cc: Miklos Szeredi <miklos@szeredi.hu>,
ecki-news2004-05@lina.inka.de, linux-kernel@vger.kernel.org
Subject: Re: Problem with ioctl command TCGETS
Date: Sun, 28 Nov 2004 14:07:04 +0100 [thread overview]
Message-ID: <41A9CD78.1050002@dbservice.com> (raw)
In-Reply-To: <20041128121800.GZ26051@parcelfarce.linux.theplanet.co.uk>
Al Viro wrote:
> On Sun, Nov 28, 2004 at 12:22:03PM +0100, Miklos Szeredi wrote:
>
>>>The set-get is supposed to be used for queries, too? The size of value is
>>>only used for the get case to describe the buffer length in that case?
>>>because otherwise the set-get case may require a short value in and a large
>>>answer structure out.
>>
>>You misunderstand the motivation. This is to get/set small compact
>>parameters, not huge structures or big data. Think get/setsockopt().
>
>
> Think read(2)/write(2). We already have several barfbags too many,
> and that includes both ioctl() and setsockopt(). We are stuck with
> them for compatibility reasons, but why the hell would we need yet
> another one?
And what's the option? So without ioctl, how would you reaplace this:
ioctl(cdrom_fd, CDROMEJECT, 0)?
tom
next prev parent reply other threads:[~2004-11-28 13:03 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-28 0:22 Problem with ioctl command TCGETS Ozan Eren Bilgen
2004-11-28 0:39 ` Al Viro
2004-11-28 9:59 ` Miklos Szeredi
2004-11-28 10:08 ` Jan Engelhardt
2004-11-28 10:18 ` Miklos Szeredi
2004-11-28 10:28 ` Bernd Eckenfels
2004-11-28 10:56 ` Wichert Akkerman
2004-11-28 11:52 ` Bernd Eckenfels
2004-11-28 11:22 ` Miklos Szeredi
2004-11-28 12:18 ` Al Viro
2004-11-28 12:32 ` Miklos Szeredi
2004-11-28 12:48 ` Al Viro
2004-11-28 12:52 ` Miklos Szeredi
2004-11-28 13:03 ` Al Viro
2004-11-28 14:30 ` Tomas Carnecky
2004-11-28 15:27 ` Al Viro
2004-11-28 18:23 ` Tomas Carnecky
2004-11-28 18:51 ` Miklos Szeredi
2004-12-10 4:01 ` Ingo Oeser
2004-11-28 13:20 ` Tomas Carnecky
2004-11-28 14:05 ` Al Viro
2004-11-28 13:07 ` Tomas Carnecky [this message]
2004-11-28 13:11 ` Al Viro
2004-11-28 13:19 ` Tomas Carnecky
2004-11-28 17:42 ` Alan Cox
2004-11-30 13:26 ` Pavel Machek
2004-11-30 15:46 ` Al Viro
2004-11-28 12:23 ` Bernd Eckenfels
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