Hello,
I am running a Qtopia 4.3 simulation on my Linux host. In addition, I
have a USB Bluetooth dongle plugged in and hciconfig tells me that
"hci0" is up and running. On the shell I can scan for devices, find some
and query the respective device info. All well so far.
Now, during the Qtopia startup, a bluetooth local device manager gets in
touch with the hci0 adatpter by creating an instance of a dbus interface
with "org.bluez", "/org/bluez", and "org.bluez.Manager" as parameters
(the redundancy in these values still astonishes me). Unfortunately, the
return is "Could not find org.bluez interface".
Could this be due to a security setting, or some other access problems?
Any hints are very much appreciated,
peter
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Hello Marcel,
> might be, but I don't have enough information to tell you. Can you get
> the full error message. Or test it with a simple Python script.
Unfortunately I cannot really provide that much information, as the
single error message comes from QTopia. So it is not a bluez issue, but
I hope to get some hints.
Digging into the Qtopia 4.3 code, I see that the private part of the
constructor of QBluetoothLocalDeviceManager contains a new
QDBusInterface with the parameters mentioned before. Adding some log
messages reveals:
Bluetooth : new QDBusInterface("org.bluez", "/org/bluez",
"org.bluez.Manager", dbc);
Bluetooth : QDBusAbstractInterfacePrivate::QDBusAbstractInterfacePrivate
dynamic
Bluetooth : QDBusAbstractInterfacePrivate::QDBusAbstractInterfacePrivate
service = "org.bluez"
Bluetooth : QDBusConnectionPrivate::getNameOwner: service = "org.bluez"
Bluetooth : QDBusConnectionPrivate::getNameOwner: message =
QDBusMessage(type=MethodCall, service="org.freedesktop.DBus",
path="/org/freedesktop/DBus", interface="org.freedesktop.DBus",
member="GetNameOwner", signature="", contents=(QString("org.bluez")) )
Bluetooth : QDBusAbstractInterfacePrivate::QDBusAbstractInterfacePrivate
currentOwner isEmpty, error =
"org.freedesktop.DBus.Error.NameHasNoOwner"
Could not find org.bluez interface
Maybe you have an idea what is going wrong, and I will continue to dig
deeper.
Regards,
peter
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Hi Peter,
> I am running a Qtopia 4.3 simulation on my Linux host. In addition, I
> have a USB Bluetooth dongle plugged in and hciconfig tells me that
> "hci0" is up and running. On the shell I can scan for devices, find
> some
> and query the respective device info. All well so far.
>
> Now, during the Qtopia startup, a bluetooth local device manager
> gets in
> touch with the hci0 adatpter by creating an instance of a dbus
> interface
> with "org.bluez", "/org/bluez", and "org.bluez.Manager" as parameters
> (the redundancy in these values still astonishes me). Unfortunately,
> the
> return is "Could not find org.bluez interface".
>
> Could this be due to a security setting, or some other access
> problems?
might be, but I don't have enough information to tell you. Can you get
the full error message. Or test it with a simple Python script.
Regards
Marcel
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