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From: daniel.baluta@gmail.com (Daniel Baluta)
To: kernelnewbies@lists.kernelnewbies.org
Subject: unlocked_ioctl explanation
Date: Thu, 19 May 2011 22:11:01 +0300	[thread overview]
Message-ID: <BANLkTiktJXky9P5Gjm7rVtr7_fsBc62p5g@mail.gmail.com> (raw)
In-Reply-To: <222949.7257.qm@web39310.mail.mud.yahoo.com>

2011/5/19 Ezequiel Garc?a <elezegarcia@yahoo.com.ar>
>
> Thanks Dave for your answer. I guess the same question has been answered several times before. For the interest reader, I've found these:
>
> http://unix.stackexchange.com/questions/4711/what-is-the-difference-between-ioctl-unlocked-ioctl-and-compat-ioctl
>
> http://lwn.net/Articles/119652/
>
> http://www.mail-archive.com/kernelnewbies at nl.linux.org/msg00269.html
>
> I have a remaining question, though. In the lwn article I read this:
>
> "The ioctl() system call has long been out of favor among the kernel developers, who see it as a completely uncontrolled entry point into the kernel".
>
> Is this pointing that ioctl() is planning to get removed from the kernel ? In that case what's the currently preferred mechanism for giving 'control commands' to device drivers ?

I would bet for 'sysfs'.

thanks,
Daniel.

      reply	other threads:[~2011-05-19 19:11 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-18  3:23 unlocked_ioctl explanation Ezequiel García
2011-05-18  6:20 ` Dave Hylands
2011-05-19 17:53   ` Ezequiel García
2011-05-19 19:11     ` Daniel Baluta [this message]

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