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From: Benoit Boissinot <bboissin@gmail.com>
To: Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Question: ioctl functions
Date: Sat, 23 Apr 2005 00:18:30 +0200	[thread overview]
Message-ID: <40f323d005042215184714acda@mail.gmail.com> (raw)

It looks like (i havent checked all the tree) that every function that
is registered as ioctl (or
read_ioctl or fb_ioctl or ...) have an argument "unsigned long arg",
then each function is using
it like this:

void __user *argp = (void __user *)arg;

I am wondering why the argument isn't from type "void __user *".

Thanks,

Benoit

                 reply	other threads:[~2005-04-22 22:18 UTC|newest]

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