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    SubjectRe: Power management for SCSI
    Hi!

    > > Add support for autosuspend/autoresume. Lowlevel driver can use it to
    > > spin the disk down and power down its SATA link, to turn off the USB
    > > interface, etc.
    > >
    > > Spinning down the disk is useful - saves ~0.5W here. Powering down
    > > SATA controller is even better -- should save ~1W.
    > >
    > > Now, I guess the patch will need to be split to small pieces for
    > > merge... I tried to rearrange it so that the documentation and hooks
    > > go before stuff that needs the hooks, and before Kconfig enabler. If
    > > it looks reasonably good, I'll split it into smaller pieces.
    >
    > James had a number of objections to my original patch; you can read
    > them here:
    >
    > https://lists.linux-foundation.org/pipermail/linux-pm/2008-March/016849.html
    >
    > I haven't had time yet to work on an improved version.

    Would it make sense to split the patches into "autosuspend for SCSI
    devices" and "autosuspend for SCSI controllers" for easier
    review/merge? I guess I'll start with the devices, they seem easier...
    Pavel
    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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