Messages in this thread | | | Date | Wed, 10 Apr 2002 11:10:01 +0200 | From | Matthias Andree <> | Subject | Re: PROMBLEM: CD burning at 16x uses excessive CPU, although DMA is enabled |
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On Tue, 09 Apr 2002, Andre Hedrick wrote:
> This is because there are not a proper and correct state diagram data > handler set for ATAPI, period. Initially the driver evolved out of PIO > calls to the PACKET_COMMAND opcode for the ATA command set. Since there > has been zero updates/attempts to create a proper ATAPI/ASPI by anyone, > you can expect PIO transactions. > > Who knows once I finally have taskfile completed and the kernel fixed to > not violate the basics of hardware atomic for storage devices, I may fix > all of the atapi/aspi transport. It is a real mess to grunt through all > the docs. However, I suspect I could get some help (co-author a > standard's proposal) with the original author to outline and create a 500+ > page techincal referrence guide. So if there are any companies want to > fund such an adventure, please let me know off-line. > > Understand that only in PIO can you be sure of how much data you could get > from a device, argh it still s a pig in a poke.
How about Andrew Morton's akpm-ide patch? http://www.zipworld.com.au/~akpm/linux/patches/2.4/2.4.18-pre9/ide-akpm.patch
-- Matthias Andree - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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