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 http://www.synce.org/ for more information about the SynCE project.
This manual page was written by David Eriksson
<firstname.lastname@example.org>. It was later updated by Jonny Lamb
<email@example.com> and Mark Ellis <firstname.lastname@example.org>.