Re: [PATCH] libata: Handle drives that require a spin-up command before first access

[Jeff Garzik <jeff@garzik.org>]

Mark Lord wrote:
> 
> (S)ATA drives can be configured for "power-up in standby",
> a mode whereby a specific "spin up now!" command is required
> before the first media access.
> 
> Currently, a drive with this feature enabled can not be used at all
> with libata, and once in this mode, the drive becomes a doorstop.
> 
> The older drivers/ide subsystem at least enumerates the drive,
> so that it can be woken up after the fact from a userspace HDIO_*
> command, but not libata.
> 
> This patch adds support to libata for the "power-up in standby"
> mode where a "spin up now!" command (SET_FEATURES) is needed.
> With this, libata will recognize such drives, spin them up,
> and then re-IDENTIFY them if necessary to get a full/complete
> set of drive features data.
> 
> Drives in this state are determined by looking for
> special values in id[2], as documented in the current ATA specs.
> 
> Signed-off-by: Mark Lord <mlord@pobox.com>

applied

though I'm curious where the verify step went, that was in the previous 
rev of the patch