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SubjectRe: autosuspend for SCSI devices
On Fri, Aug 22, 2008 at 12:56:27 +0200, Pavel Machek wrote:
> From: Alan Stern <>
> Add support for autosuspend/autoresume of the SCSI devices. Lowlevel
> driver can use it to spin the disk down... and it is neccessary step
> for powering down the controllers.
> Spinning down the disk is useful - saves ~0.5W here, and it is last
> major thing we can do to save power on some small machines like
> Kohjinsha subnotebooks.

Is there a difference regarding power saving to the already existing
ways to spin down a disk, like noflushd? In a previous patch you
mentioned that this can be used to disable the SATA port so save even
more power. However, this part seems to be missing in this patch,


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