Hello, I wrote:
I shall draw the obvious conclusion from the fact you don't feel like
providing one
The logic is this
ATA-3 or higher - that word has a defined meaning
ATA < 3 that word should be 0x0000
pre ATA (EIDE) or head up backside implementations that would will be
anything but usually 0x0000 or 0xFFFF
We cannot test for ATA < 3 because there is no version bit for it
That's not quite true, read the ATA-3 standard better.
Therefore we want to check
CFA signature -> CFA (good for CFA 1.1 and later devices using it)
ATA >= 3 claimed - word is trustable bit is 0 or means CFA
The problem is that the CF specs explicitly forbid (!) to report
anything in word 80 -- it's reserved and must be 0.
Yes the implementation is paranoid, but having done ten years working for
a distro dealing with PC hardware in volume day in and day out I've yet
Working while checking word 82 ISO word 83? Who are you trying to cheat?
I'm sorry, that was totally off base. I've misread this whole paragraph in
haste. :-<
The rest of my evening was wasted, sigh.
MBR, Sergei
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