Re: WD_QUIRK_FORCE_LBA48

[Michael van Elst <mlelstv%serpens.de@localhost>]

On Mon, Dec 07, 2009 at 10:16:25AM +0100, Manuel Bouyer wrote:

> LBA48 uses the same LBA registers as LBA24, you write to
> the registers twice to give transfers LBA and size. Some controllers
> designed before LBA48 may have unpredictable behavior with such
> write sequence.

I can understand this to be a problem for SATA, but with PATA the
'controller' and the registers are part of the drive electronics.

Am I wrong?

Greetings,
-- 
                                Michael van Elst
Internet: mlelstv%serpens.de@localhost
                                "A potential Snark may lurk in every tree."