Re: driverfs problem

Pavel Machek (pavel@ucw.cz)
Tue, 21 May 2002 23:26:06 +0200


Hi!

> > - I'm not sure about how to name the device directories. I don't have anything
> > like a hierarchical structure (except for something like scsi devices behind
> > a channel device) but rather a flat list of up to 65536 devices that are
> > accessed by a device number that was defined by the system administrator.
> > Each device also has a control unit type, comparable to a PCI ID, and in the
> > general case each device driver knows about one control unit type. A
> > hypothetical system might have
> > - one console, control unit type 0x3215, device number 0x0000
> > - three network devices, control unit type 0x1732, devno 0x0100 to 0x0102
> > - 1024 storage devices, control unit type 0x3390, devno 0x1000 to 0x13ff
>
> The control unit types are irrelevant at this point, as they dictate the
> type of device. You want to accurately represent the physical layout of
> the system.

s390 is linux on the top of vm. Linux runs under vmware-kind of
machine.... Its difficult to talk about "physical".
Pavel

-- 
(about SSSCA) "I don't say this lightly.  However, I really think that the U.S.
no longer is classifiable as a democracy, but rather as a plutocracy." --hpa
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