From owner-freebsd-questions@freebsd.org  Tue Jun 19 18:00:57 2018
Return-Path: <owner-freebsd-questions@freebsd.org>
Delivered-To: freebsd-questions@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 44E711004378
 for <freebsd-questions@mailman.ysv.freebsd.org>;
 Tue, 19 Jun 2018 18:00:57 +0000 (UTC)
 (envelope-from freebsd@edvax.de)
Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.17.24])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "mout.kundenserver.de",
 Issuer "TeleSec ServerPass DE-2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id A56B16DFA6
 for <freebsd-questions@freebsd.org>; Tue, 19 Jun 2018 18:00:56 +0000 (UTC)
 (envelope-from freebsd@edvax.de)
Received: from r56.edvax.de ([92.195.97.38]) by mrelayeu.kundenserver.de
 (mreue105 [212.227.15.183]) with ESMTPA (Nemesis) id
 0Lbr40-1fx0Bm1GpI-00jFDC; Tue, 19 Jun 2018 20:00:54 +0200
Date: Tue, 19 Jun 2018 20:00:54 +0200
From: Polytropon <freebsd@edvax.de>
To: Eric Joyner <ricera10@gmail.com>
Cc: freebsd-questions <freebsd-questions@freebsd.org>
Subject: Re: Is there a way to disable PCI devices before a driver attaches
 to them?
Message-Id: <20180619200054.1232602d.freebsd@edvax.de>
In-Reply-To: <CA+b0zg_9q86XE=4gT68cfqmD7+gdEN8F0_2veTYDDtwHeAN+Uw@mail.gmail.com>
References: <CA+b0zg_9q86XE=4gT68cfqmD7+gdEN8F0_2veTYDDtwHeAN+Uw@mail.gmail.com>
Reply-To: Polytropon <freebsd@edvax.de>
Organization: EDVAX
X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
X-Provags-ID: V03:K1:TW1XvyKqxcAEYxRBzGvb9WVtDMYAYeAXxtZyTqX/cFWrSjI5e9O
 afrK8cLr5T5oqcRNieFImwaGOkk+w/UYzp6CRhbH2G8PUDfahGR1bQU8Pfg+mt+I5s2AGCo
 Fe2DSnGXhu3Zrkh5g/dIJAHLfiWUgSXublZuyxUWxR04Z/FquP9fj0Fyc9DOfpa9eAFz2VK
 UJLocaKZudYwlD42JleMQ==
X-UI-Out-Filterresults: notjunk:1;V01:K0:BHyOoy003C4=:9BW86Jk0pl6jQzsoF3ldMx
 /O0SzwL56ij4crF9mft1fNLYvwfIl7Br6UBnUbLV+VC9V19r0tdTGMVjpIcOOHbxrZmMKaDcG
 kRWx3wCltxP6o4FCdriQ12jzzSF8Goll9/esdxI8QwA8Z7J3XEwL2IEylVNQySkjHjG5Zl1KI
 IztvseGuINyToP6ULm2zJIfz1X9U3JJJU7YjW6/iKmRMZT2HOkAGZ1a9M6W2T4pnj7/rltrIq
 krVjIDkle11R1WViDj6i8nBY6xtk3qvpYwSYgHY2xxFI6tkBfeAkPOvuSbVn1r2LrdDvMMyYE
 6+c7ZZCKcnn5mkVTX3I5qwzz0dic2jDjMj94EjnHfJCIJ0l9ooI9QeVHqZHt2zAsKoMgXQjyY
 tjSCY38tBUoueybFKW1jm+Npcunsj1PR4e2Ne9qwepcm06iCkFgeqOY7hUYySSSWp/v8cPyQV
 u5ncPKFsYv7P5jLf1pwINJ0sC0gdWpCx9cq22tSNBMEGD3/rtjPbs+qg964w/fwmnspciDAeK
 3oOLJZQrqAK6IEnqD1AHdVHGgMsd6N/Qzx7dEuGgHnqg59XAgpbc3EfyLSQbw/Xl1kM1GUB+Q
 I1PtaUa8cF79fBPC5exz34mEcG7Bfc/mcTmuFBhMzq7bonHzC5D1FX7HEZsNUK1uLgrOLfO7X
 NTqkM3Psqa29d86/DocedCJ3HlX1ys+0Rj9fJ2NiXhKEKhqXuzsvvfRNYtq/TtU5jaLjTfc4Q
 nG22LlGWEFb9RSiI
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.26
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions/>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 19 Jun 2018 18:00:57 -0000

On Tue, 19 Jun 2018 10:36:43 -0700, Eric Joyner wrote:
> ^ See subject ^
> 
> The only method I know of atm is to load vmm via loader.conf and use the
> pptdev variable to make the devices that I want to disable just "ppt"
> devices.

Maybe you can use /boot/device.hints to disable the device
you don't want a driver to attach to? Example:

	hint.ppt.0.disable="YES"

You should also be able to add such a statement to /boot/loader.conf
because device.hints might get replaced during updates (and it
is a system-provided file, while loader.conf usually is a
user-spplued file),

See "man device.hints", or:

https://www.freebsd.org/doc/handbook/device-hints.html

https://forums.freebsd.org/threads/disable-driver.14402/


-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...