From owner-freebsd-doc@FreeBSD.ORG Wed Mar 2 19:40:26 2005 Return-Path: Delivered-To: freebsd-doc@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C176316A4CE for ; Wed, 2 Mar 2005 19:40:26 +0000 (GMT) Received: from postfix3-1.free.fr (postfix3-1.free.fr [213.228.0.44]) by mx1.FreeBSD.org (Postfix) with ESMTP id 70C6643D48 for ; Wed, 2 Mar 2005 19:40:26 +0000 (GMT) (envelope-from riccius@free.fr) Received: from concept (def92-1-82-231-204-103.fbx.proxad.net [82.231.204.103]) by postfix3-1.free.fr (Postfix) with SMTP id 35B6D1734B6 for ; Wed, 2 Mar 2005 20:40:24 +0100 (CET) From: "Eric Guerineau" To: Date: Wed, 2 Mar 2005 20:40:26 +0100 Message-ID: MIME-Version: 1.0 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.1 Subject: Question about driver of PCI SIO X-BeenThere: freebsd-doc@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Documentation project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Mar 2005 19:40:26 -0000 Hello, After getting information on the device driver for a PCI board multi port RS232, I want to understand the device driver of an IO device driver based on the files sio.c. I don't really make a diferrence between the function outb and the function sio_setreg, and the opposite for the function inb and sio_getreg. Could you help me? Thanks Eric