Re: How to turn off ide dma ...

[Stephan von Krawczynski]

On Fri, 6 Jun 2003 10:22:52 -0700 
Ho Lee <[e-mail]> wrote:

> 
> ide=nodma option would help you. It disables DMA on every
> IDE interfaces. 

Thanks, I know that. My problem is disabling DMA on _certain_ ide devices,
while others remain with DMA enabled. How do you do that?

Regards,
Stephan

 
> Regards,
> Ho
> 
> -----Original Message-----
> From: Stephan von Krawczynski [mailto:[e-mail]]
> Sent: Friday, June 06, 2003 5:25 AM
> To: linux-kernel
> Subject: How to turn off ide dma ...
> 
> 
> for certain devices as boot-option in kernel 2.4.20 ?
> 
> E.g. you have three devices and want one of them (not all) to come up PIO
> instead of DMA.
> As using hdparm gives errors and delays for about 20-30 seconds on this
> device
> it would be better to turn it off right from the beginning.
> 
> Regards,
> Stephan