From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [RFC][PATCH 00/11] Android PM extensions Date: Sun, 1 Feb 2009 00:20:04 +0100 Message-ID: <200902010020.04696.rjw@sisk.pl> References: <20090131074743.GA13633@bulgaria.corp.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: linux-pm@lists.linux-foundation.org Cc: Brian Swetland , Nigel Cunningham List-Id: linux-pm@vger.kernel.org On Saturday 31 January 2009, Arve Hj=F8nnev=E5g wrote: > On Sat, Jan 31, 2009 at 7:41 AM, Alan Stern w= rote: > > On Fri, 30 Jan 2009, Brian Swetland wrote: > >> Imagine the computer in question is a cellphone which is going to need > >> to wake up when a call comes in to do traditional cellphone things, li= ke > >> ring, bring up the incall UI (so the user can answer/cancel), etc. > > > > Yes. So what? Nothing I said prevents the computer from waking up > > when a call comes in. What I said was that when the user tells the > > computer to suspend (e.g., by writing "mem" to /sys/power/state), the > > computer should suspend even if some wakelocks are still locked. > = > But this could prevent the phone from ringing. What if the user-space > code that is responsible for playing the ringtone has been notified > that a call is coming in and starts reading the audio file with the > ringtone. At the same, the user, unaware that someone is calling, > presses the power button. If we ignore the wakelock in this situation, > the phone will not ring. What if the user decides to power off the phone and a call comes in at the same time? Rafael