Subject: Re: Compact Flash w/ Sony VAIO quirks (fixed?)
To: Castor Fu <email@example.com>
From: Jason Thorpe <firstname.lastname@example.org>
Date: 12/12/1999 12:24:16
On Sun, 12 Dec 1999 12:14:19 -0800 (PST)
"Castor Fu" <email@example.com> wrote:
> > If turning on debugging makes the card work, this suggests a timing
> > problem, yes?
> Sticking a delay before the debug printf in wdccommand_intr during
> the attach seems to work equivalently. When I have some more time,
> I can dig into it further, but if others have seen similar problems,
> maybe there's a common problem.
I note that before one instance of __wdccommand_intr() there is the following;
* Polled command. Wait for drive ready or drq. Done in intr().
* Wait for at last 400ns for status bit to be valid.
__wdccommand_intr(chp, xfer, 0);
...perhaps we should move that `delay(10)' into the body of
__wdccommand_intr()? Try that, and see what happens...
-- Jason R. Thorpe <firstname.lastname@example.org>