From owner-freebsd-current Wed Jul 25 9: 7:56 2001 Delivered-To: freebsd-current@freebsd.org Received: from lpr-325.cable.inet.fi (lpr-325.cable.inet.fi [194.251.103.37]) by hub.freebsd.org (Postfix) with ESMTP id 4961637B41D for ; Wed, 25 Jul 2001 09:05:59 -0700 (PDT) (envelope-from Juha.Nurmela@quicknet.inet.fi) Received: from localhost (junki@localhost) by lpr-325.cable.inet.fi (8.11.4/8.11.4) with ESMTP id f6PG6Cd00706; Wed, 25 Jul 2001 19:06:12 +0300 (EEST) (envelope-from Juha.Nurmela@quicknet.inet.fi) Date: Wed, 25 Jul 2001 19:06:12 +0300 (EEST) From: Juha.Nurmela@quicknet.inet.fi X-Sender: junki@lpr-325.cable.inet.fi Reply-To: Juha.Nurmela@quicknet.inet.fi To: Kenneth Wayne Culver Cc: freebsd-current@freebsd.org Subject: Re: driver writing newbie In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Wed, 25 Jul 2001, Kenneth Wayne Culver wrote: > Well, I could do that, but I'd rather write a complete driver with all the > regular interfaces... (open, close, ioctl, and a specific major/minor in > the kernel, I'm going to add other chips to this driver eventually) The > way you are suggesting just opens /dev/io and uses inb and outb to do some > hacking around I believe. You are absolutely correct. I was not suggesting this as the proper approach, but as a throw-away checkpoint only (the mapping registers seemed inconsistent between OS/motherboard combinations). I suppose 0x70 is for HWMon and 0x90 is for the SMBus function, in Via 686B. Have you checked NetBSD, the seem to have a framework for temperature alarms etc. Juha To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message