On Tue, Nov 22, 2005 at 01:56:39PM -0500, Alan Stern wrote:
> I know practically nothing about how your device works, so this is just a
> guess. It seems likely that the IEEE1394-USB/ATA interface controller
> translates the commands it receives over the external bus into a sequence
> of ATA or ATAPI commands that is somewhat different from the sequence of
> commands Linux would use if the drive were directly attached to an IDE
> controller. As a result, perhaps the drive sends those "not ready"
> replies when you use it over an external bus but not when you use attach
> it over ATA.
>
> Or maybe not... Maybe the drive _does_ send those "not ready" messages
> and the IDE driver ignores them instead of printing them in the system
> log. Or perhaps those messages are sent by the bus interface controller
> and not by the drive itself. I just don't know.
The difference is between ide-cd.c and sr.c, most likely.
Jeff
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