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Date: Wed, 9 Sep 2015 10:33:17 -0400 (EDT)
From: Alan Stern <stern@...land.harvard.edu>
To: Oliver Neukum <oneukum@...e.com>
cc: "Tirdea, Irina" <irina.tirdea@...el.com>,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"Brown, Len" <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
"Purdila, Octavian" <octavian.purdila@...el.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [RFC PATCH] PM / Runtime: runtime: Add sysfs option for forcing
runtime suspend
On Wed, 9 Sep 2015, Oliver Neukum wrote:
> On Tue, 2015-09-08 at 10:44 -0400, Alan Stern wrote:
> > It would not put the device into runtime suspend immediately, like you
> > are proposing. Instead it would mean the same as the "auto" mode,
> > except that remote wakeup should be disabled during runtime suspend.
>
> Hi,
>
> this proposal is incomplete. If you don't want remote wakeup you
> imply that input is no longer needed or possible. If that is
> already known, we can just as well inform the driver, so that
> it can cease IO for input.
Like I said, it was never implemented. For that reason, it was never
completely fleshed out.
> Yet that is not necessarily the only scenario. For example
> if you run a screensaver, you might not care for where the
> user touches the screen, but the event as such is valuable.
I suspect it's not worth the effort to distinguish between getting an
event with all the details and merely knowing that an event occurred.
Alan Stern
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