Date: Tue, 17 Apr 2001 21:10:46 -0400 From: "Joseph Gleason" <clash@tasam.com> To: "Michael VanLoon" <MichaelV@EDIFECS.COM>, <freebsd-hardware@FreeBSD.ORG> Cc: "Paul" <tribble@tribble.net> Subject: Re: AMD MB + I/O address -> /dev/mem byteoffset question Message-ID: <003001c0c7a4$66d457d0$dc02010a@battleship> References: <F37F6A0194D1EF4BA8D0EF3B542BE3E00F1586@ecx1.edifecs.com>
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I know healthd didn't seem to support my chipset. It gave me a bunch of non-sensical values for everything. I assume it was reading the wrong I/O addresses. Can someone point me towards what exactly SMB is? I think I know, but I am certainly not sure. ----- Original Message ----- From: "Michael VanLoon" <MichaelV@EDIFECS.COM> > If I remember correctly, I/O space is separate from memory space on Intel > chips (i.e. I/O is not memory-mapped). You cannot read/write it with a > memory address. You need to use I/O functions to do so. > > There are at least two daemons that already do this. One is healthd, and I > forget the name of the other one. I believe you need to check into SMBus > protocol to work with these as well. > > > From: Joseph Gleason [mailto:clash@tasam.com] > > Sent: Tuesday, April 17, 2001 5:44 PM > > > > This brings up a somewhat unrealated point. In the manual it says: > > "Hardware monitoring features for temperatures, fans and voltages will > > occupy I/O address from 294H to 297H." > > > > Can I access that memory block by reading from a byte offset > > in /dev/mem? > > If so, what offset? Can someone explain the XXXH notation in terms of > > actual memory or point me somewhere that does? > > > > I am intersted in writing a little peice of software that > > will query these > > values. If I can read the appropriate chunk, I'm sure I can > > figure out > > exactly what byte is what by seeing what values change when I > > do diffrent > > things. > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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