Re: [PATCH] libata: Handle bay devices in dock stations

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On Tue, Jun 03, 2008 at 08:27:59PM +0200, Holger Macht wrote:
> * Differentiate between bay devices in dock stations and others:
> 
>  - When an ACPI_NOTIFY_EJECT_REQUEST appears, just signal uevent to
>    userspace (that is when the optional eject button on a bay device is
>    pressed/pulled) giving the possibility to unmount file systems and to
>    clean up. Also, only send uevent in case we get an EJECT_REQUEST
>    without doing anything else. In other cases, you'll get an add/remove
>    event because libata attaches/detaches the device.
> 
>  - In case of a dock event, which in turn signals an
>    ACPI_NOTIFY_EJECT_REQUEST, immediately detach the device, because it
>    may already have been gone
> 
> * In case of an ACPI_NOTIFY_DEVICE/BUS_CHECK, evaluate _STA to check if
>   the device has been plugged or unplugged. If plugged, hotplug it, if
>   unplugged, just signal event to userspace
>   (initial patch by Matthew Garrett <mjg59@xxxxxxxxxxxxx>)
> 
> * Call ACPI _EJ0 for detached devices
> 
> Signed-off-by: Holger Macht <hmacht@xxxxxxx>

Acked-by: Matthew Garrett <mjg@xxxxxxxxxx>

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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