linux-kernel - Re: [PATCH] libata: Register for dock events when the drive is inside a dock station

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Message-ID: <47C6804A.50705@gmail.com>
Date:	Thu, 28 Feb 2008 18:35:06 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Tejun Heo <htejun@...il.com>, Jeff Garzik <jeff@...zik.org>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	Kristen Carlson Accardi <kristen.c.accardi@...el.com>
Subject: Re: [PATCH] libata: Register for dock events when the drive is	inside
 a dock station

Holger Macht wrote:
> The hotplug handler is only called if the device is actually inside the
> dock station. If it is not, nothing will happen. I hope that I got your
> question right?

Yes, right.

> However, if this would be helpful, it would be easy to add something like
> a am_I_on_dock_station?(...) function to the dock driver.

Hmm.. as long as the event is only delivered when the device is actually
connected behind dock, I think it's okay.

Does the attached patch fix the previous undock problem?  It now
explicitly tells libata EH to detach the notified devices on
EJECT_REQUEST and wait for EH to complete such that control is returned
to ACPI after all notified devices are actually detached.

Thanks.

-- 
tejun

View attachment "patch" of type "text/plain" (3496 bytes)