Date: Wed, 18 Jul 2001 21:08:31 -0400 (EDT) From: Kenneth Wayne Culver <culverk@wam.umd.edu> To: freebsd-questions@freebsd.org, freebsd-hackers@freebsd.org Subject: pci device driver writing newbie Message-ID: <Pine.GSO.4.21.0107182059230.3375-100000@rac5.wam.umd.edu>
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I'm currently trying to write a driver for the hardware monitoring function of the Via 686a/b chipset, but I have a problem. I'm trying to get my module (which right now does mostly nothing except probing and attaching) to detect the ACPI function of this chip, but right now pciconf -l shows it as "chip0". I found the devid in /usr/src/sys/pci/pcisupport.c, (0x30571106) and commented that case out, recompiled my kernel, and rebooted, but no luck, it still detects as chip0. What can I do to keep this from happening. This is the only way I can accurately probe and attach this device and find it's base i/o address. Once I have this chip probing and attaching, and have the base io address, I can do the rest of the hardware monitoring functions of this driver on my own. (as a note, to avoid doing floating point calculations in the kernel, and to avoid doing some really nasty hacks that I found in the linux version of this driver, I'll be making the driver return the raw values from the registers, and I'll be writing a library that takes care of making the values that come from the registers useful.) Thanks ahead of time :-) Ken To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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