From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg KH <gregkh@suse.de>,
linux-pci@vger.kernel.org, linux-usb@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>,
Linux-pm mailing list <linux-pm@lists.linux-foundation.org>
Subject: Re: [RFC] PCI: Runtime power management
Date: Sun, 16 Aug 2009 17:04:06 +0100 [thread overview]
Message-ID: <20090816160406.GA10163__8019.47975201092$1250438713$gmane$org@srcf.ucam.org> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0908161151020.6522-100000@netrider.rowland.org>
On Sun, Aug 16, 2009 at 11:57:53AM -0400, Alan Stern wrote:
> On Sat, 15 Aug 2009, Rafael J. Wysocki wrote:
>
> > > Why would you ever want runtime_wakeup to be false unless
> > > runtime_forbidden is true? Surely the point of runtime power management
> > > is to be transparent to the user, in which case remote wakeup is
> > > required?
>
> Matthew, what makes you think remote wakeup is required? Lots of
> power-manageable devices don't support it at all (consider disk drives
> or display screens).
Sorry, I meant in cases where remote wakeup is a sensible concept. For
things like storage there's obviously no reason to require it, but for
something like USB the absence of remote wakeup would effectively break
the driver for most users.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2009-08-16 16:04 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-08 14:25 [PATCH] PM: Introduce core framework for run-time PM of I/O devices (rev. 14) Rafael J. Wysocki
2009-08-09 21:13 ` [PATCH update] PM: Introduce core framework for run-time PM of I/O devices (rev. 15) Rafael J. Wysocki
2009-08-09 21:13 ` Rafael J. Wysocki
2009-08-12 10:37 ` Magnus Damm
2009-08-12 15:47 ` Alan Stern
2009-08-12 15:47 ` Alan Stern
2009-08-12 20:13 ` Rafael J. Wysocki
2009-08-12 20:13 ` Rafael J. Wysocki
2009-08-12 10:37 ` Magnus Damm
2009-08-13 0:29 ` [RFC] PCI: Runtime power management Matthew Garrett
2009-08-13 0:29 ` Matthew Garrett
2009-08-13 0:35 ` [RFC] usb: Add support for runtime power management of the hcd Matthew Garrett
2009-08-13 12:16 ` Oliver Neukum
2009-08-13 12:16 ` [linux-pm] " Oliver Neukum
2009-08-13 12:30 ` Matthew Garrett
2009-08-13 12:30 ` [linux-pm] " Matthew Garrett
2009-08-13 14:26 ` Oliver Neukum
2009-08-13 14:26 ` [linux-pm] " Oliver Neukum
2009-08-13 21:42 ` Matthew Garrett
2009-08-13 21:42 ` Matthew Garrett
2009-08-13 15:22 ` Alan Stern
2009-08-13 15:22 ` Alan Stern
2009-08-13 21:47 ` Matthew Garrett
2009-08-13 21:47 ` Matthew Garrett
2009-08-13 0:35 ` Matthew Garrett
2009-08-13 15:17 ` [RFC] PCI: Runtime power management Alan Stern
2009-08-13 21:47 ` Matthew Garrett
2009-08-14 12:30 ` Matthew Garrett
2009-08-14 12:30 ` [linux-pm] " Matthew Garrett
2009-08-14 14:43 ` Alan Stern
2009-08-14 14:43 ` [linux-pm] " Alan Stern
2009-08-14 17:05 ` Rafael J. Wysocki
2009-08-14 17:05 ` [linux-pm] " Rafael J. Wysocki
2009-08-14 17:13 ` Rafael J. Wysocki
2009-08-14 17:13 ` [linux-pm] " Rafael J. Wysocki
2009-08-14 19:01 ` Alan Stern
2009-08-14 19:01 ` Alan Stern
2009-08-14 20:05 ` [linux-pm] " Rafael J. Wysocki
2009-08-14 22:21 ` Matthew Garrett
2009-08-15 14:18 ` Rafael J. Wysocki
2009-08-15 14:18 ` [linux-pm] " Rafael J. Wysocki
2009-08-15 15:53 ` Alan Stern
2009-08-15 15:53 ` [linux-pm] " Alan Stern
2009-08-15 20:54 ` Rafael J. Wysocki
2009-08-15 20:54 ` [linux-pm] " Rafael J. Wysocki
2009-08-15 20:58 ` Matthew Garrett
2009-08-15 20:58 ` [linux-pm] " Matthew Garrett
2009-08-15 21:21 ` Rafael J. Wysocki
2009-08-15 21:21 ` Rafael J. Wysocki
2009-08-15 21:27 ` [linux-pm] " Matthew Garrett
2009-08-15 21:44 ` Rafael J. Wysocki
2009-08-15 21:44 ` [linux-pm] " Rafael J. Wysocki
2009-08-16 16:09 ` Alan Stern
2009-08-16 16:09 ` Alan Stern
2009-08-15 21:27 ` Matthew Garrett
2009-08-16 15:57 ` Alan Stern
2009-08-16 15:57 ` [linux-pm] " Alan Stern
2009-08-16 16:04 ` Matthew Garrett [this message]
2009-08-16 16:04 ` Matthew Garrett
2009-08-16 15:50 ` Alan Stern
2009-08-16 15:50 ` [linux-pm] " Alan Stern
2009-08-14 22:21 ` Matthew Garrett
2009-08-14 20:05 ` Rafael J. Wysocki
2009-08-13 21:47 ` Matthew Garrett
2009-08-13 15:17 ` Alan Stern
2009-08-14 17:37 ` Jesse Barnes
2009-08-14 17:37 ` Jesse Barnes
2009-08-14 19:15 ` Rafael J. Wysocki
2009-08-14 19:15 ` Rafael J. Wysocki
2009-08-14 21:22 ` Rafael J. Wysocki
2009-08-14 22:30 ` Matthew Garrett
2009-08-14 22:30 ` Matthew Garrett
2009-08-15 14:41 ` Rafael J. Wysocki
2009-08-15 15:24 ` Rafael J. Wysocki
2009-08-15 15:24 ` Rafael J. Wysocki
2009-08-15 14:41 ` Rafael J. Wysocki
2009-08-14 21:22 ` Rafael J. Wysocki
2009-08-13 20:56 ` [PATCH update 2x] PM: Introduce core framework for run-time PM of I/O devices (rev. 16) Rafael J. Wysocki
2009-08-13 21:03 ` Paul Mundt
2009-08-13 21:03 ` Paul Mundt
2009-08-13 21:14 ` Rafael J. Wysocki
2009-08-13 21:14 ` Rafael J. Wysocki
2009-08-14 9:08 ` Magnus Damm
2009-08-14 17:19 ` Rafael J. Wysocki
2009-08-14 17:19 ` Rafael J. Wysocki
2009-08-14 9:08 ` Magnus Damm
2009-08-14 17:25 ` [PATCH update 3x] PM: Introduce core framework for run-time PM of I/O devices (rev. 17) Rafael J. Wysocki
2009-08-14 17:25 ` Rafael J. Wysocki
2009-08-13 20:56 ` [PATCH update 2x] PM: Introduce core framework for run-time PM of I/O devices (rev. 16) Rafael J. Wysocki
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