linux-kernel - Re: Generic events for wake up from S1-S4

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Message-ID: <43e72e890907151100j37feb30av7281d09960ca5db2@mail.gmail.com>
Date:	Wed, 15 Jul 2009 11:00:07 -0700
From:	"Luis R. Rodriguez" <mcgrof@...il.com>
To:	Pavel Machek <pavel@....cz>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org,
	Johannes Berg <johannes@...solutions.net>,
	"John W. Linville" <linville@...driver.com>,
	Jouni Malinen <j@...fi>,
	linux-wireless <linux-wireless@...r.kernel.org>,
	Stephen Chen <Stephen.Chen@...eros.com>
Subject: Re: Generic events for wake up from S1-S4

On Wed, Jul 15, 2009 at 8:51 AM, Luis R. Rodriguez<mcgrof@...il.com> wrote:
> On Tue, Jul 14, 2009 at 4:53 PM, Pavel Machek<pavel@....cz> wrote:
>> On Tue 2009-07-14 15:11:45, Luis R. Rodriguez wrote:
>>> I'm working on Wake-on-Wireless support for wireless right now [1].
>>> Upon wake up I wanted to inform the kernel of the event which caused
>>> the wake up but am not clear if there is a generic API for this. Mind
>>> you, for WoW we'll need at least some AC power to the card so we'll
>>> need to at least be in S3-Hot so we'll only need events for that for
>>> now.
>>>
>>> Do we have some generic infrastructure to gather reasons for wake up
>>> from S1-S4 and pass this to userspace yet?
>>
>> I do not think generic api exists...

Going back to this topic -- any suggestions? Will a generic netlink
family be OK? Or perhaps easier a udev event for some suitable
existing parent ?

  Luis
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