Re: Fixing ISA device probing

"Matthew N. Dodd" <[email protected]> Thu, 29 Aug 2002 15:12:30 -0400 (EDT)

Newsgroups	gmane.os.freebsd.devel.new-bus
Message-ID	<[email protected]>

On Tue, 27 Aug 2002, John Baldwin wrote:
> Currently we have several types of ISA devices:
> - Devices enumerated by the BIOS.  Currently we have two types: those
>   enumerated by ACPI and those by the PNPBIOS.  These two sets are
>   mutually exclusive.
> - PnP ISA devices.
> - ISA devices that only the user can tell us about (currently they can
>   use hints to tell us).

We can also have devices that perform their own enumerated either by
probing a list of possible IO addresses and retreiving their config from
the card directly ('ex') or by performing a probe using an isolation
protocol similar ISA PnP ('ep').

I won't get into destructive vs. non-destructive probes.

-- 
| Matthew N. Dodd  | '78 Datsun 280Z | '75 Volvo 164E | FreeBSD/NetBSD  |
| [email protected] |       2 x '84 Volvo 245DL        | ix86,sparc,pmax |
| http://www.jurai.net/~winter |  For Great Justice!  | ISO8802.5 4ever |


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