[maemo-developers] AW: PC Suite communication

From: André Hänsel andre at webkr.de
Date: Wed Apr 14 16:21:38 EEST 2010

for two reasons:
a) It requires plugging in the cable and I like how it syncs automagically
via Bluetooth when I enter the office
b) I have even less experience with windows USB in general and USB composite
devices, so making a driver for the g_nokia USB networking is quite a
challenge (see also


> -----Ursprüngliche Nachricht-----
> Von: maemo-developers-bounces at maemo.org [mailto:maemo-developers-
> bounces at maemo.org] Im Auftrag von Jarmo.Tikka at nokia.com
> Gesendet: Mittwoch, 14. April 2010 11:19
> An: maemo-developers at maemo.org
> Betreff: RE: PC Suite communication
> Hi,
> I do not know much about you actual question about obex etc.
> I just wondered why you don't just setup USB/BT networking between
> Maemo device and host with Maemo PC Connectivity. After that you can
> use standard TCP/IP between host PC and device.
> http://maemo.org/news/announcements/maemo_pc_connectivity_2nd_edition_f
> inal_released/
> Cheers,
> //Jarmo
> >Date: Wed, 14 Apr 2010 03:34:21 +0200
> >From: Andr? H?nsel <andre at webkr.de>
> >Subject: PC Suite communication
> >To: <maemo-developers at maemo.org>
> >Message-ID: <001901cadb72$9bc7fcd0$d357f670$@de>
> >Content-Type: text/plain;	charset="iso-8859-1"
> >
> >Hi list,
> >
> >I am currently evaluating my chances to use the PC Suite connection to
> >connect from an application running on the host to a daemon running on
> the
> >N900. For this I'm having a look at e.g. syncd and in particular
> obexd.
> >
> >As far as I understand, when using bluetooth connection, the PC Suite
> >application talks to one of the bluetooth COM ports. The virtual
> serial
> >connection is somehow taken by BlueZ and forwarded to a socket of type
> >PF_BLUETOOTH on which obexd listens and answers the connection. So far
> I
> >don't understand how the Windows application instructs BlueZ to
> forward the
> >data to a certain socket and not just to a virtual serial port.
> Apparently
> >it's not an rfcomm connection since there is no rfcomm device and it
> doesn't
> >show up in rfcomm output.
> >
> >As for the USB side I know even less. The data is probably transmitted
> using
> >one of the "Wireless Communication Devices" (Nokia N900 USB Generic,
> Nokia
> >N900 USB OBEX, Nokia N900 USB Phone Parent) and received by the
> g_nokia
> >module, but how do they get to obexd?
> >
> >Can someone provide me with any information on these matters?
> >
> >Regards,
> >Andr?
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