Messages in this thread | | | From | Robert Hancock <> | Subject | Re: [PATCH] ide: Fix ata_id_has_dword_io to return DWORD I/O support properly | Date | Fri, 19 Dec 2008 19:58:03 -0600 |
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Alan Cox wrote: >> This seems like a risky assumption... > > Its wrong on various counts > > - ata_id_major_version can't tell early ATA versions apart > - on anything later than the early ISA IDE paddles (the ones that > basically were just bus decoders) its invisible to the drive > > Except for legacy ISA bus controllers (and even there it is questionable) > I would favour simply ignoring it.
32-bit IO wouldn't work on any ISA controller, would it? What happens if you do 32-bit IO port access on something on the ISA bus?
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