> Was that something intentional or was it a happy accident?  There can be
quoted text
> bus ownership problem on PATA and on SATA this is much more state logic

IDLE IMMEDIATE is part of the "historic" specification rather than modern
ATA standards. Older drives support it happily newer ones tended to get
quite cross.

quoted text
> on both sides of the cable and I think things like that would be more
> difficult to work accidentally.

We'd have to query the drive vendors to see what they expected.

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