Re: error in setting speakergain in own application

-------- Original-Nachricht --------

Datum: Wed, 02 Sep 2009 15:37:59 +0100
Von: Bastien Nocera [off-list ref]
An: Peter Kornatowski [off-list ref]
CC: linux-bluetooth@vger.kernel.org
Betreff: Re: error in setting speakergain in own application

On Wed, 2009-09-02 at 13:52 +0200, Peter Kornatowski wrote:

quoted

Hi,

I have a linux application where i do some stuff with bluez (4.50) over

dbus. I have 3 headsets with which I test (Jabra BT530, Sora B-Speech,
official PS3-BT headset) and on all I get the same behaviour/error.

quoted

I would like to set the speakergain of a headset from my linux-app. I

tried two methods:

quoted

a) call the method "SetProperty":

GValue value;
value.g_type = 0; // also tried: value = { 0 };
guint16 ugain = (guint16)gain; // also tried: guint ugain = (guint)gain;
g_value_init(&value, G_TYPE_UINT);
g_value_set_uint(&value, ugain);
dbus_g_proxy_call(proxy, "SetProperty", &error, G_TYPE_STRING,
  "SpeakerGain", G_TYPE_VALUE, &value, G_TYPE_INVALID, G_TYPE_INVALID);

This would work (and you don't need to use a GValue, the call will take
care of marshalling the value to the proper type:
dbus_g_proxy_call(proxy, "SetProperty", &error, G_TYPE_STRING,
  "SpeakerGain", G_TYPE_UINT, ugain, G_TYPE_INVALID, G_TYPE_INVALID);

Thanks for the idea, but now I get the following error:
Method "SetProperty" with signature "su" on interface "org.bluez.Headset" doesn't exist

So the value is not set to the proper type, it still remains "u".
Do you have any other ideas?

Greetings, Peter

quoted

g_value_unset(&value);

Cheers

--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth"
in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

-- 
Neu: GMX Doppel-FLAT mit Internet-Flatrate + Telefon-Flatrate
für nur 19,99 Euro/mtl.!* http://portal.gmx.net/de/go/dsl02