From owner-freebsd-questions Thu Jan 10 11:43:12 2002 Delivered-To: freebsd-questions@freebsd.org Received: from lists.blarg.net (lists.blarg.net [206.124.128.17]) by hub.freebsd.org (Postfix) with ESMTP id CA3D837B41A for ; Thu, 10 Jan 2002 11:43:10 -0800 (PST) Received: from thig.blarg.net (thig.blarg.net [206.124.128.18]) by lists.blarg.net (Postfix) with ESMTP id 6EEC0BDD5; Thu, 10 Jan 2002 11:43:10 -0800 (PST) Received: from localhost.localdomain ([206.124.139.115]) by thig.blarg.net (8.9.3/8.9.3) with ESMTP id LAA20570; Thu, 10 Jan 2002 11:43:10 -0800 Received: (from jojo@localhost) by localhost.localdomain (8.11.6/8.11.3) id g0AJhR843951; Thu, 10 Jan 2002 11:43:27 -0800 (PST) (envelope-from swear@blarg.net) To: Nils Holland Cc: freebsd-questions@FreeBSD.ORG Subject: Re: device eisa... References: <20020110194243.A29397@tisys.org> From: swear@blarg.net (Gary W. Swearingen) Date: 10 Jan 2002 11:43:27 -0800 In-Reply-To: <20020110194243.A29397@tisys.org> Message-ID: Lines: 17 User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.1 (Cuyahoga Valley) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Nils Holland writes: > I've been wondering about the following: Is there actually a need to keep > the line "device eisa" in the kernel? I realize that my systems need > "device pci" for the PCI cards and "device isa" for some internal things > and probably installed ISA cards, but I really wonder what eisa is good > for. So, does one *always* have to enable eisa if one enables isa (which > means that eisa can not really ever be disabled), or does eisa only refer > to special hardware that is not generally included in most PCs and can thus > be disabled? You need to keep it only if your motherboard has an EISA bus. It's probably in GENERIC because there are still a lot of old 486 EISA MBs which were usually used in servers. The EISA bus was an advanced (32 bit?) peripheral bus with much better performance than ISA, but it could hold either EISA or ISA cards because of its expensive connector. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message