Messages in this thread | | | Date | Tue, 23 Nov 2004 20:13:50 +0100 | From | Jens Axboe <> | Subject | Re: 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
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |