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From: othman@oasys.pc.my (Othman Ahmad)
Newsgroups: comp.os.386bsd.questions
Subject: Re: CDROM support
Message-ID: <DykkFc3w165w@oasys.pc.my>
Date: Mon, 03 Jan 94 09:16:36 +800
References: <2g5qaq$ng0@u.cc.utah.edu>
Organization: Telekom Malaysia, Kota Kinabalu, Sabah, Malaysia
Lines: 27
terry@cs.weber.edu (A Wizard of Earth C) writes:
>
> I was under the (correct me if I am mistaken) impression that the Mitsumi
> and the SoundBlaster interfaces were identical. I am *NOT* talking about
They are not identical. Linux boot disk from Walnut Creek, will detect
a Panasonic Interface(Equivalent to Soundblaster I believe), as a Mitsumi
CDROM but ffails to transfer any data.
> the SoundBlaster SCSI, which wants a CPU-intensive driver to push its
> bits for it, unlike decent, God-fearing SCSI cards that will do bus-mastering
Beware though that direct memory read can be faster than any DMA given the
right processor.
> DMA for you. My impression is that it would be easier to implement drivers
> for some of the crummy older SCSI cards than it would for the SoundBlaster
If you can get some info. At least for the Soundblaster, we have lots of
codes to study from.
> SCSI.
>
Just for information and my opinion.
SABAH is HEAVEN. Beautiful islands, mountains and jungles are next to 5 star
hotels. There are no natural and very few man-made disasters,
BUT for how long will it last?
Disclaimer: I only speak for myself