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

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Message-ID: <4E08A0A0.1080409@redhat.com>
Date:	Mon, 27 Jun 2011 12:24:16 -0300
From:	Mauro Carvalho Chehab <mchehab@...hat.com>
To:	Andy Walls <awalls@...metrocast.net>
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

Em 27-06-2011 12:12, Andy Walls escreveu:
> 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

True, but it doesn't cover all error types. For sure we need to use the POSIX standard
when working at the DocBook.

Cheers,
Mauro
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