From owner-freebsd-hackers@FreeBSD.ORG  Tue Dec  2 20:54:33 2014
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 6D01BC2F
 for <freebsd-hackers@freebsd.org>; Tue,  2 Dec 2014 20:54:33 +0000 (UTC)
Received: from mail.turbocat.net (heidi.turbocat.net [88.198.202.214])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 2E3BF12D
 for <freebsd-hackers@freebsd.org>; Tue,  2 Dec 2014 20:54:32 +0000 (UTC)
Received: from laptop015.home.selasky.org
 (cm-176.74.213.204.customer.telag.net [176.74.213.204])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (No client certificate requested)
 by mail.turbocat.net (Postfix) with ESMTPSA id 0529C1FE022;
 Tue,  2 Dec 2014 21:54:23 +0100 (CET)
Message-ID: <547E271A.6070005@selasky.org>
Date: Tue, 02 Dec 2014 21:54:50 +0100
From: Hans Petter Selasky <hps@selasky.org>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
 rv:31.0) Gecko/20100101 Thunderbird/31.2.0
MIME-Version: 1.0
To: arrowdodger <6yearold@gmail.com>, 
 freebsd-hackers <freebsd-hackers@freebsd.org>
Subject: Re: Mapping SCSI driver to USB one.
References: <CALH631kGdAh_Eod5OsAeFKB4c5XgW88ghD3Rm+hT0Z04UNC8rQ@mail.gmail.com>
In-Reply-To: <CALH631kGdAh_Eod5OsAeFKB4c5XgW88ghD3Rm+hT0Z04UNC8rQ@mail.gmail.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
 <freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers/>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
 <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 02 Dec 2014 20:54:33 -0000

On 12/02/14 21:39, arrowdodger wrote:
> Hello.
> I'm playing around with sysutils/hal sources and can't find a way to obtain
> a SCSI driver to the corresponding USB device. In other words, knowing
> "umass0" i want to get "da0" for it.
>>From what i can tell, HAL uses CAM API's (/dev/xpt0 stuff), but working
> with it requires elevated privileges. Probably, because of that hald-runner
> is running under root.
> Is there any way to perform such mapping as regular user?

Hi,

Maybe "devinfo" will give you the answer.

--HPS