Re: No more floppy drive
From: Nate Lawson (nate_at_root.org)
Date: 08/26/04
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Date: Wed, 25 Aug 2004 16:28:07 -0700 To: "M. Warner Losh" <imp@bsdimp.com>
M. Warner Losh wrote:
> In message: <412D12D4.1000401@root.org>
> Nate Lawson <nate@root.org> writes:
> : There are only two ways currently to find fd0 on ISA systems: ACPI _FDE
> : probing and hints. The acpi probe automatically falls back to the hints
> : system if _FDE fails so you should leave the hint.fd.0 lines in but
> : comment out hint.fdc lines (as you've done).
>
> I think this is a bad idea, but may be what we have to do for 5.3. We
> can find out what drives are on the system by asking the rtc() if
> there's no _FDE, which is what the old, pre-acpi code did (which is
> why people are seeing their drives disappear now).
This is incorrect. The acpi commits did not remove any rtc probe; there
never was one. There were only two commits by me to fdc.c so check them
out to see what I mean. All I did was move the existing hints probe
into its own function, fdc_hints_probe(). The easiest way to see how
fdX gets probed is to look for callers to fdc_add_child(). They are
fdc_acpi_probe_children() and fdc_hints_probe(). The latter is called
by the ISA attachment or the ACPI attachment if the _FDE method is not
present. (BTW, it seems the pccard attachment doesn't probe this way?)
-- Nate _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
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