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    SubjectRe: Who uses hdx=bswap or hdx=swapdata?
    On Jan 04, Geert Uytterhoeven wrote:
    > On Thu, 3 Jan 2002, Alan Cox wrote:
    > > > Is the hdx=bswap or hdx=swapdata option actually in use?
    > > > When is it needed?
    > >
    > > Certain M68K machines
    > >
    > > > The current implementation can cause data corruptions on SMP with PIO
    > > > transfers:
    > > >
    > > > Is it possible to remove the option entirely, or should it be fixed?
    > >
    > > Show me an SMP Atari ST 8)
    >
    > IIRC it's used to access non-Atari IDE disks on Atari (which has a byte-swapped
    > IDE interface) and vice-versa.
    >
    > So yes, you can use it on SMP machines, to access disks that were used before
    > on Atari.

    The byteswapping flags are also used by people hacking TiVos; the
    non-MIPS models have byte-swapped IDE interfaces, and so the bswap
    flag is needed to mount a TiVo disk on a PC.


    Chris
    --
    Chris Lawrence <cnlawren@olemiss.edu> - http://www.lordsutch.com/chris/

    Instructor and Ph.D. Candidate, Political Science, Univ. of Mississippi
    208 Deupree Hall - 662-915-5765
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