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From: Michael Trimarchi <trimarchi@gandalf.sssup.it>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg KH <greg@kroah.com>,
	linux-pm@lists.linux-foundation.org, len.brown@intel.com
Subject: Re: [RFC Add no_suspend attribute V2] Let the driver know if it's in use
Date: Thu, 23 Jul 2009 18:00:19 +0200	[thread overview]
Message-ID: <4A688913.7040000@gandalf.sssup.it> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0907231053040.2825-100000@iolanthe.rowland.org>

Alan Stern wrote:
> On Thu, 23 Jul 2009, Rafael J. Wysocki wrote:
>
>   
>>> I follow the discussion around the new runtime support and I would like 
>>> to know if I can
>>> add to the new interface the no_suspend flag or maybe now there is a 
>>> better solution.
>>>       
>> Hmm.  Do I remember correctly that the no_suspend flag is for preventing the
>> system-wide suspend in case some devices are in use?
>>     
>
> As I recall, the no_suspend flag was used to mark a few devices which
> should not be powered down during an otherwise normal system sleep.
>
> For example, you might want to suspend the computer while leaving a
> built-in DVB tuner on because the tuner is attached to an external TV
> set.
>
> Alan Stern
>   
Is it ok for you if a prepare only the patch the add the flag and let 
the user space
and the driver to use it?

Michael
>
>   

  reply	other threads:[~2009-07-23 16:00 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-24 17:24 [RFC Add no_suspend attribute V2] Let the driver know if it's in use Michael Trimarchi
2009-04-24 17:31 ` Randy Dunlap
2009-04-24 17:36   ` Michael Trimarchi
2009-04-24 17:55 ` Michael Trimarchi
2009-04-24 22:55   ` Greg KH
2009-04-25  8:21     ` Michael Trimarchi
2009-04-25  9:07     ` Michael Trimarchi
2009-04-25 10:56       ` Rafael J. Wysocki
2009-04-25 12:03         ` Michael Trimarchi
2009-04-25 16:57           ` Alan Stern
2009-04-25 17:11             ` Michael Trimarchi
2009-04-25 18:33               ` Alan Stern
2009-04-30 23:42                 ` Michael Trimarchi
2009-05-01  2:27                   ` Alan Stern
2009-07-23 14:09             ` Michael Trimarchi
2009-07-23 14:32               ` Rafael J. Wysocki
2009-07-23 14:56                 ` Alan Stern
2009-07-23 16:00                   ` Michael Trimarchi [this message]
2009-07-24 15:36                     ` Rafael J. Wysocki

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