From owner-freebsd-hackers@FreeBSD.ORG Fri Apr 1 14:29:58 2011 Return-Path: Delivered-To: freebsd-hackers@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D448E106564A; Fri, 1 Apr 2011 14:29:58 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 9BE198FC08; Fri, 1 Apr 2011 14:29:57 +0000 (UTC) Received: from odyssey.starpoint.kiev.ua (alpha-e.starpoint.kiev.ua [212.40.38.101]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id RAA26851; Fri, 01 Apr 2011 17:29:55 +0300 (EEST) (envelope-from avg@FreeBSD.org) Message-ID: <4D95E162.40605@FreeBSD.org> Date: Fri, 01 Apr 2011 17:29:54 +0300 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.15) Gecko/20110309 Lightning/1.0b2 Thunderbird/3.1.9 MIME-Version: 1.0 To: FreeBSD Arch , FreeBSD Hackers X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: Subject: looking for error codes X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Apr 2011 14:29:58 -0000 I am looking for error codes that would unambiguously signal that a disk drive has readonly or write-protected media and that disk drive has no media at the moment. I foresee these error codes being used mostly between disk peripheral drivers and filesystem drivers. I will appreciate your suggestions. P.S. I see that Linux uses EROFS and ENOMEDIUM for these purposes. I am not sure about EROFS in this role. And we don't have ENOMEDIUM (nor EMEDIUMTYPE). -- Andriy Gapon