Re: [PATCH] Re: Linux v2.6.22-rc3

[Jeff Garzik]

On Fri, Jun 08, 2007 at 04:38:04PM +0100, Alan Cox wrote:
> > See a URL I posted earlier in this thread.  With dumb ATAPI devices we
> > actually have to wait a bit for BSY to be asserted.  Not only at reset,
> > but also for every command
> 
> 400nS and the current code correctly accounts for it.

No, _far_ longer than 400nS.  2ms minimum by the spec, but,

ATADRVR. blackmagic.html and googling around shows plenty of ATAPI
devices that don't get their shit together for 50-100ms.

The BIOS source I'm reviewing right now waits 50ms, after SRST.

	Jeff



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