Return-Path: Message-ID: <49FCD7E7.9020105@gmail.com> Date: Sun, 03 May 2009 03:31:51 +0400 From: Ilya Rubtsov MIME-Version: 1.0 To: linux-bluetooth@vger.kernel.org Subject: Re: DeviceFound and DeviceDisappeared signals References: <49FB0A07.2020200@gmail.com> <49FB3C18.8030505@gmail.com> <2d5a2c100905021520i374024a2u565626e4c7f00b87@mail.gmail.com> In-Reply-To: <2d5a2c100905021520i374024a2u565626e4c7f00b87@mail.gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Luiz Augusto von Dentz пишет: > Hi, > > On Fri, May 1, 2009 at 3:14 PM, Ilya Rubtsov wrote: > >> I just would add that with hardware scheduler DeviceDisappeared signal works >> fine if there two remote devices in the field, and doesn't work if there is >> only one remote device: >> >> --- >> # Now there only 00:16:B8:53:5F:17 is turned on >> Fri May 1 20:36:48 2009 Signal: DeviceFound 00:16:B8:53:5F:17 >> # Now I turn off 00:16:B8:53:5F:17 and wait, but no signal being emitted... >> # So, I turn on 00:02:76:16:F6:8F >> Fri May 1 20:38:52 2009 Signal: DeviceFound 00:02:76:16:F6:8F >> Fri May 1 20:39:01 2009 Signal: DeviceDisappeared 00:16:B8:53:5F:17 >> > > You may just have to wait longer to get the DeviceDisappeared signal > the fact the you turned off the device doesn't mean it will instantly > disappear it may happen that bluetoothd is idle waiting for scheduler > to start another discovery round (use Discovering property to check > that.). I will double check if there is some logic problem while > emitting DeviceDisappeared but I remember fixing it myself last time > and have no complaining since then. > > I connected to PropertyChanged signal: # device (bluetooth module in phone) is turned on. I run script Sun May 3 02:55:00 2009 Signal: PropertyChanged Discovering 1 Sun May 3 02:55:03 2009 Signal: DeviceFound 00:16:B8:53:5F:17 kkk -45 Sun May 3 02:55:10 2009 Signal: PropertyChanged Discovering 0 Sun May 3 02:55:21 2009 Signal: PropertyChanged Discovering 1 Sun May 3 02:55:31 2009 Signal: PropertyChanged Discovering 0 Sun May 3 02:55:50 2009 Signal: PropertyChanged Discovering 1 Sun May 3 02:56:00 2009 Signal: PropertyChanged Discovering 0 # turn device off # And then no signal. At all. You even may go and drink cup of coffee or smth :) There won't be any signal. But LED on my dongle indicates mode changing: waiting (blinking), inquiry (permanent light), waiting, inquiry... # turn device on Sun May 3 02:59:39 2009 Signal: PropertyChanged Discovering 0 Sun May 3 02:59:55 2009 Signal: PropertyChanged Discovering 1 Sun May 3 03:00:05 2009 Signal: PropertyChanged Discovering 0 Sun May 3 03:00:23 2009 Signal: PropertyChanged Discovering 1 Sun May 3 03:00:30 2009 Signal: PropertyChanged Discovering 0 Sun May 3 03:00:46 2009 Signal: PropertyChanged Discovering 1 Sun May 3 03:00:54 2009 Signal: PropertyChanged Discovering 0 Sun May 3 03:01:08 2009 Signal: PropertyChanged Discovering 1 Sun May 3 03:01:15 2009 Signal: PropertyChanged Discovering 0 Sun May 3 03:01:31 2009 Signal: PropertyChanged Discovering 1 Sun May 3 03:01:38 2009 Signal: PropertyChanged Discovering 0 Sun May 3 03:01:49 2009 Signal: PropertyChanged Discovering 1 Sun May 3 03:01:59 2009 Signal: PropertyChanged Discovering 0 Sun May 3 03:02:22 2009 Signal: PropertyChanged Discovering 1 Sun May 3 03:02:30 2009 Signal: PropertyChanged Discovering 0 Sun May 3 03:02:44 2009 Signal: PropertyChanged Discovering 1 # turn device off Sun May 3 03:02:51 2009 Signal: PropertyChanged Discovering 0 # and then silent... BlueZ 4.36 Script source: http://pastebin.com/m26afe2e2 Hardware scheduler