Hardware Support Q and A for Linux

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  -o)/ /  (_)__  __ ____  __      Derek Winterstien
  /\\ /__/ / _ \/ // /\ \/ /      r.o.a.c.h.@.r.o.b.o.t.z...c.o.m
 _\_v __/_/_//_/\_,_/ /_/\_\

This text document addresses various hardware support questions
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You can reduce the speed of IDE CD-ROM drives with hdparm or a program called
setcd. It works like this:

    hdparm -E [speed] [cdrom device]

    setcd -x [speed] [cdrom device]

You can also try

    echo current_speed:4 > /proc/ide/[cdrom device]/settings

but you will need root privileges. The following command may also help:

    echo file_readahead:2000000 > /proc/ide/[cdrom device]/settings
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tune your CD-ROM drive with hdparm:

    hdparm -d1 -a8 -u1 (cdrom device)

This enables DMA access, read-ahead, and IRQ unmasking (read the hdparm man
page for a detailed explanation).

Please refer to "/proc/ide/[cdrom device]/settings" for fine-tuning your
CD-ROM.