linux-kernel - Re: [PATCH] [media] v4l2 core: return -ENOIOCTLCMD if an ioctl doesn't exist

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Date:	Mon, 27 Jun 2011 11:12:49 -0400
From:	Andy Walls <awalls@...metrocast.net>
To:	Mauro Carvalho Chehab <mchehab@...hat.com>
Cc:	Hans Verkuil <hverkuil@...all.nl>,
	Sakari Ailus <sakari.ailus@....fi>,
	Arnd Bergmann <arnd@...db.de>,
	Linux Media Mailing List <linux-media@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] [media] v4l2 core: return -ENOIOCTLCMD if an ioctl 
 doesn't exist

On Mon, 2011-06-27 at 10:54 -0300, Mauro Carvalho Chehab wrote:

> The right thing to do is to create a separate chapter for error codes, based on errno(3)
> man page [snip]

IMO, the IEEE Std 1003.1 is a better source for errno definitions than
the errno(3) manpage:

http://pubs.opengroup.org/onlinepubs/000095399/functions/xsh_chap02_03.html

Regards,
Andy

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