Re: [MPlayer-users] mplayer and preemptible kernel

[Nyk Tarr <nyk@xxxxxxxxxxxx>]

On Tue, Oct 29, 2002 at 03:04:25PM -0600, Jeremy Brenner wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> On Tue, 2002-10-29 at 14:57, Green, Shaun wrote:
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> > > If you have 3 controllers in your computer and the DVD is hdc on the 3rd
> > > controller, yes.
> > > 
> > > Shaun 
> > >ok.. so "ide1=dma" enables ide for all drives on the secondary
> > >controller righto?
> > 
> > Well, it sets the bootup w/ DMA enabled if the 80 wire cables and a
> > supported controller is used. You still may need the /etc/harddisk* files as
> > well. I do both and it works perfectly. You can check it with /sbin/hdparm
> > /dev/hdc (as root).
> > 
> > Shaun 
> 
> but my hdc is scsi emulated... i'm trying to turn dma on despite the
> fact that I don't have an ide /dev entry that i can hdparm
> 

>From what I read on the linux kernel mailing list, ide-scsi does not
support dma. I suspect it never will as the only things that use it
(programs that need direct access to cd-rom/cd-rw etc. hardware) will
have a new interface to use in the next stable release. Oh, and the new
IDE code (>2.5.somethingorother) can have both ide-cd and ide-scsi
loaded for the same device.

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