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    SubjectRe: Power management for SCSI
    On Wed, 13 Aug 2008, Pavel Machek wrote:

    > From: Alan Stern <>
    > 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:

    I haven't had time yet to work on an improved version.

    Alan Stern

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