From: Greg KH <gregkh@suse.de>
To: "Hans J. Koch" <hjk@hansjkoch.de>
Cc: "Benenati, Chris J" <chris.j.benenati@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: uio: power management of user-space drivers
Date: Tue, 15 Feb 2011 17:17:54 -0800 [thread overview]
Message-ID: <20110216011754.GA11181@suse.de> (raw)
In-Reply-To: <20110216001847.GF2785@local>
On Wed, Feb 16, 2011 at 01:21:04AM +0100, Hans J. Koch wrote:
> Let me guess: suspend/resume functions are supposed to leave your hardware in
> a consistent state and you don't know the state if the suspend() catches you
> in the middle of your userspace processing?
> I remember the Android guys had problems like that and invented some
> "suspend blockers". However, I don't remember what the final answer in that
> discussion was. Greg?
It's all in the kernel today. See:
http://lwn.net/Articles/416690/
for all of the details you will ever need.
Hope this helps,
greg k-h
next prev parent reply other threads:[~2011-02-16 1:19 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <0635488208022A4F82521A04A4772E15C555EC7E@orsmsx503.amr.corp.intel.com>
[not found] ` <20110215231236.GE2785@local>
2011-02-15 23:27 ` power management of user-space drivers Benenati, Chris J
2011-02-16 0:21 ` uio: " Hans J. Koch
2011-02-16 0:35 ` Benenati, Chris J
2011-02-16 1:40 ` Greg KH
2011-02-16 1:17 ` Greg KH [this message]
2011-02-16 18:15 ` Hans J. Koch
2011-02-16 0:20 ` Benenati, Chris J
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