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SubjectRe: ide-cd problem
On Tue, Nov 23 2004, Jeff Garzik wrote:
> Jens Axboe wrote:
> > /* packet command */
> >- HWIF(drive)->OUTB(WIN_PACKETCMD, IDE_COMMAND_REG);
> >+ spin_lock_irqsave(&ide_lock, flags);
> >+ HWIF(drive)->OUTBSYNC(drive, WIN_PACKETCMD, IDE_COMMAND_REG);
> >+ ndelay(400);
> >+ spin_unlock_irqrestore(&ide_lock, flags);
> > return (*handler) (drive);
>
>
> FWIW this ndelay(400) is required by the spec, when you submit a command.

Yes, I know it isn't pulled out of thin air :)

--
Jens Axboe

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