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       SynCE  -  A project for connecting to devices running Microsoft Windows


       The SynCE project aims to provide libraries and tools to connect to and
       synchronise  with  PDA’s  and  other  devices running Microsoft Windows
       Mobile, or Windows CE.

       The main components include :-

       Core library that provides various support services and functions.

       Core library implementing the RAPI protocol, equivalent to rapi.dll  on
       a  Windows  OS.  RAPI  is  used for most kinds of interaction with a WM

       This library actually implements two versions of the protocol.  RAPI  1
       is used for devices up to and including CE 5.0, with RAPI 2 coming into
       use from 5.1 (WM5).

       Library implementing RRA (Remote Replication Agent),  a  protocol  used
       for synchronisation. This protocol is used for all data synchronisation
       until WM5, at which point Airsync is used  for  the  majority.  RRA  is
       still used for file synchronisation however.

       The dccm daemon negotiates the initial connection with a WM device, and
       may provide keep-alive signals and client connections, depending on the
       device version and flavour of dccm.

       There  have  been a number of dccm ’flavours’. The original, also known
       as synce-dccm, is now considered obsolete and should not be used. Vdccm
       is  a  natural  progression  of dccm which is not greatly used anymore.
       Odccm is the most common in use at the moment, and uses dbus to provide
       connections to both legacy and modern devices. Hal-dccm is a new option
       that integrates the dccm functionality  into  hal  to  provide  a  more
       platform consistent interface.

       The following steps are required to get started with SynCE:

   (1)  Ensure  the  rndis  kernel  module or a serial connection mechanism is
       To use advanced network features (rndis) with a WM5  or  later  device,
       which  is recommended, you must use the usb-rndis-[lite|ng] driver from
       SynCE. For older devices or to use serial with WM5, if synce-hal is not
       used you will require the synce-serial package. You will of course also
       need a dccm daemon, synce-hal or odccm is recommended.

   (2) Start the connection daemon (as root)
       If using odccm, this daemon must run as the root user. With  synce-hal,
       dccm  will  be  started as required. Older dccm implementations must be
       run as your user.

   (3) Run tools that access the device (as user)
       See for example pls(1) and pcp(1).

       See for more information about the SynCE project.


       This     manual     page     was     written    by    David    Eriksson
       <>. It was later  updated  by  Jonny  Lamb
       <> and Mark Ellis <>.