From owner-freebsd-hackers@FreeBSD.ORG Wed Feb 11 14:15:10 2009 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 BCD9F1065672 for ; Wed, 11 Feb 2009 14:15:10 +0000 (UTC) (envelope-from avg@icyb.net.ua) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id DF10D8FC0A for ; Wed, 11 Feb 2009 14:15:09 +0000 (UTC) (envelope-from avg@icyb.net.ua) 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 QAA14182 for ; Wed, 11 Feb 2009 16:15:08 +0200 (EET) (envelope-from avg@icyb.net.ua) Message-ID: <4992DD6B.3050507@icyb.net.ua> Date: Wed, 11 Feb 2009 16:15:07 +0200 From: Andriy Gapon User-Agent: Thunderbird 2.0.0.19 (X11/20090110) MIME-Version: 1.0 To: freebsd-hackers@FreeBSD.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Subject: userland driver? 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: Wed, 11 Feb 2009 14:15:11 -0000 has anybody tried anything in the area of userland drivers on FreeBSD? I mean a driver for something sufficiently simple and standalone and not driven by interrupts. E.g. some sort of a watchdog driver that simply reads/writes some io registers from time to time. Brute-force and a very bad way is to go through /dev/mem, /dev/io, /dev/pci, but I am thinking about something that would allow to plug into newbus framework from userland. -- Andriy Gapon