Help me to test top of tree bluetooth subsystem

Help me to test top of tree bluetooth subsystem

[balaji palaniswami]

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Hi All ,

I have upgraded the ubuntu 8.04 kernel to 2.6.30-rc5 and bluez 4.39. I did pairing with Jabra headset using below pyhton script. I got below error message. This issue is related with ubuntu application dbus. so please advise me which distribution , setup procedure  would be suitable to test top tree of bluetooth subsystem.

Thanks,
Balaji.P


Traceback (most recent call last):
  File "./bthstereoheadset.py", line 25, in <module>
    path = audio.CreateDevice(headsetAddress)
  File "/var/lib/python-support/python2.5/dbus/proxies.py", line 68, in __call__
    return self._proxy_method(*args, **keywords)
  File "/var/lib/python-support/python2.5/dbus/proxies.py", line 140, in __call__
    **keywords)
  File "/var/lib/python-support/python2.5/dbus/connection.py", line 607, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.bluez.Error.ConnectionAttemptFailed: Host is down


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#!/usr/bin/python
import dbus
import os
import sys

def printusage():
	print 'bthstereoheadset.py <options>'
	print '    create - create a stereo headset'
	print '    start  - connect sink'
	print '    stop   - disconnect sink'
	return
	
headsetAddress = os.getenv("BTSTEREO_HEADSET")

print 'BT Stereo Headset Is :  => %s' % headsetAddress

bus = dbus.SystemBus()
manager = dbus.Interface(bus.get_object('org.bluez', '/org/bluez'), 'org.bluez.Manager')
bus_id = manager.ActivateService('audio')
audio = dbus.Interface(bus.get_object(bus_id, '/org/bluez/audio'), 'org.bluez.audio.Manager')
   
if len(sys.argv) == 1 :
	printusage()
elif len(sys.argv) > 1 and sys.argv[1] == 'create'  :
	path = audio.CreateDevice(headsetAddress)
	audio.ChangeDefaultDevice(path) 
	sink = dbus.Interface (bus.get_object(bus_id, path), 'org.bluez.audio.Sink')
	sink.Connect()
	print 'Stereo Headset Connect Done'
elif len(sys.argv) > 1 and sys.argv[1] == 'start'  :
	path = audio.DefaultDevice()
	sink = dbus.Interface (bus.get_object(bus_id, path), 'org.bluez.audio.Sink') 
	if not sink.IsConnected() :
		sink.Connect()				
	print 'Audio connected'
elif len(sys.argv) > 1 and sys.argv[1] == 'stop'  :
	path = audio.DefaultDevice()
	sink = dbus.Interface (bus.get_object(bus_id, path), 'org.bluez.audio.Sink') 
	try : 
		sink.Disconnect()
	except dbus.exceptions.DBusException:
		print 'Disconnect Failed'		
	print 'Stereo headset disconnect complete'

Re: Help me to test top of tree bluetooth subsystem

[Vinicius Gomes]

Hi Balaji,

On Tue, May 12, 2009 at 9:14 AM, balaji palaniswami
<balaji_palaniswami@yahoo.com> wrote:
> Hi All ,
>
> I have upgraded the ubuntu 8.04 kernel to 2.6.30-rc5 and bluez 4.39. I did pairing with Jabra headset using below pyhton script. I got below error message. This issue is related with ubuntu application dbus. so please advise me which distribution , setup procedure  would be suitable to test top tree of bluetooth subsystem.
>

There is an audio devices howto at the wiki[1], which has been updated
recently (thanks Zygo!),
it covers pretty much everything.

Taking a look at the traceback and the script you have provided it
seems that you still are running
a daemon from the old 3.x series. The dbus interface has changed,
please take a look at the *-api.txt
files in the doc directory in a more recent version.

> Thanks,
> Balaji.P
>
>
> Traceback (most recent call last):
>  File "./bthstereoheadset.py", line 25, in <module>
>    path = audio.CreateDevice(headsetAddress)
>  File "/var/lib/python-support/python2.5/dbus/proxies.py", line 68, in __call__
>    return self._proxy_method(*args, **keywords)
>  File "/var/lib/python-support/python2.5/dbus/proxies.py", line 140, in __call__
>    **keywords)
>  File "/var/lib/python-support/python2.5/dbus/connection.py", line 607, in call_blocking
>    message, timeout)
> dbus.exceptions.DBusException: org.bluez.Error.ConnectionAttemptFailed: Host is down
>
>
>      Now surf faster and smarter ! Check out the new Firefox 3 - Yahoo! Edition http://downloads.yahoo.com/in/firefox/?fr=om_email_firefox


Cheers,
-- 
Vinicius Gomes
INdT - Instituto Nokia de Tecnologia

[1] http://wiki.bluez.org/wiki/HOWTO/AudioDevices