Re: CD-ROM settings and hardware resources...

[pa3gcu <pa3gcu@zeelandnet.nl>]

On Wednesday 23 October 2002 21:46, you wrote:

I have directed a reply to the list as i find it relavant.

> According to a conversation I had with another helper on this list,
> there is an experimental IDE CR driver that does away with the scsi
> emulation.  I was under the impression that this was the only way to
> turn on the dma setting.

Then i stand corrected, as i know nothing of such a driver, it could be that 
such a driver is being developed into 2.5 kernels, however those kernels are 
not things to use on normal systems as they are what they are, "experimental".

Perhaps the "other helper" on this list would like to tell us where to find 
information on this driver.

>
> Anyway, I ask these questions because I have a lot of other things to
> deal with from day to day.  Sometimes I don't spend enough time
> researching solutions because of distractions.

That is a problem we all camp with.
Too be honest i made a mistake in the mail below, i said the CD-Writing-HOWTO 
explained about 'hdparm' i was wrong, i read it somewhere else, its just i 
cant remember where it was, possably in the README of Xcdroast which i use 
for buring CD's or some other program README.

>
> I could have done without the sarcasm, but thanks for the info.

It was not meant as sarcasm, if you took it that way then please accept my 
appols.

>
> On Wed, 2002-10-23 at 16:36, pa3gcu wrote:
> > On Wednesday 23 October 2002 19:20, Bryan Simmons wrote:
> > > The CD-ROM in question is a CD-RW.  The system set it up as /dev/scd0
> > > which is not accessible from hdparam.  if I turn it into an ide device,
> > > I will no longer be able to write CDs with it.
> >
> > You are missing the point, your cd-rom is no differnt to anyone else's,
> > you set things like dma with hdparm but you do it on the underlting
> > device which is /dev/hdX where X is a letter a b c or d.
> >
> > a = master device primary controller.
> > b = slave   device primary controller.
> > c = master device sec controller.
> > d = slave   device sec controller.
> >
> > hdparm /dev/hdc shows drive info;
> > hdparm -d1 /dev/hdc
> > will set dma to "on" on drive "c" as per above. /dev/scd0 is irrelavant.
> >
> > > Does anyone know a way around this?  I can't hardly believe that all
> > > the millions of Linux users have been, and still are, stuck with CD-RWs
> > > that have to masquerade as SCSI devices.
> >
> > There is no way around it, simply read the proper documentation, in this
> > case the CD-Writing HOWTO.
> > IDE-ATAPI CD-RW devices only work with SCSI emulation as they only do in
> > widows as well.
> > If you find a better way you can tell us millions how you did it then.
> >
> > --
> > Regards Richard
> > pa3gcu@zeelandnet.nl
> > http://people.zeelandnet.nl/pa3gcu/

-- 
Regards Richard
pa3gcu@zeelandnet.nl
http://people.zeelandnet.nl/pa3gcu/

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