> > Can you confirm that the socket and media are good, by
> trying them out
> > under windows or something?
>
> The same SD card and reader work fine under Windows Vista
> on this same
> machine. Ditto other SD cards in this reader. The fact that
> I am
> occasionally able to get this reader to work under Linux,
> though does
> make it seem like some timing or race issue that I'm
> hitting, though.
>
It does not look like a pure software issue from the debug trace.
Host issues initialisation commands to the media (8, 5, 55), each is retried 3
times. For all of them, command execution fails with
hardware error flag set (and those are cleaned in between).
I still tend to blame improper hardware initialisation, but I'll try
to look and see if there can be something else.
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