Subject: Re: AMD SCSI driver? Another soul lost in Deskpro XL limbo...
To: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
From: Nathan J. Williams <nathanw@MIT.EDU>
List: port-i386
Date: 03/29/1999 11:15:40
Izumi Tsutsui <tsutsui@ceres.dti.ne.jp> writes:

> I've got the manual and noticed that 79c974 has two independent
> PCI configuration registers and has two device IDs 2000h and 2020h.
> So it should be probed as two independent le and pcscp devices
> by current (and also snapshot) kernel.

	Right, that's pretty much how multi-function PCI devices are
supposed to work; the oddity* is that the chip designers seem to have
taken the tack of making the device two totally separate PCI devices,
to the extent of having two each of the per-device IDSEL, REQ, and GNT
lines, instead of having two funcions on one device.

	- Nathan

* Well, it looks odd to me. Or is this common among device
manufacturers these days? Saves on making an internal bus-master
arbiter, I suppose.