Date: Wed, 25 Jul 2001 19:06:12 +0300 (EEST) From: Juha.Nurmela@quicknet.inet.fi To: Kenneth Wayne Culver <culverk@wam.umd.edu> Cc: freebsd-current@freebsd.org Subject: Re: driver writing newbie Message-ID: <Pine.BSF.4.10.10107251856400.704-100000@lpr-325.cable.inet.fi> In-Reply-To: <Pine.GSO.4.21.0107251140530.10112-100000@rac2.wam.umd.edu>
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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
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