2009/5/27 Florian Fainelli [off-list ref]:

Hi Dmitry,

Le Tuesday 26 May 2009 13:21:57 Dmitry Eremin-Solenikov, vous avez écrit :

quoted

The project page is available at
http://apps.sourceforge.net/trac/linux-zigbee with source code of kernel
part available from git at
http://zigbee-linux.git.sourceforge.net, mirrored for convenience at
git://git.kernel.org/pub/scm/linux/kernel/git/lumag/lowpan.git

The source code for userspace utils is available from git at
http://linux-zigbee.git.sourceforge.net/

From the project page I understand that you plan on providing a ZigBee stack,
based on this 802.15.4 stack ? Do you plan on submitting the ZigBee stack
later on ?

The ZigBee stack currently is in design stage of development. When it will be
more or less "in shape" we will present it to the community.

Maybe you should mention that this implementation is royalty-free, but that
commercial products using it should both respect the GPL license and pay a
ZigBee royalty as per the ZigBee Alliance . That is just for clarification
since right now it simply does 802.15.4 which is not subject to this royalty
thing.

We will look into this, thank you for putting our attention on this topic.

quoted

Several comments about our implementation:
* As with 802.11 there are two types of devices: the smart ones that
implement most parts of the protocol by themselves and more or less dumb
ones which simply send and receive what they are told. Currently we do only
support the second type of devices (SoftMAC)
* The implementation is split between code driving radio, (master, mwpanX
  interface: mdev.c), code processing frames according the IEEE 802.15.4
  rules (slave wpanX devices) and finally sockets (af_ieee802154.c,
dgram.c, raw.c).

This sounds good. Do you also plan on integrating some meshing algorithm on
top of 802.15.4 ? If so,

Hmmm. IIUC the 802.15.4 doesn't have any knowledge about meshing. It's the
part of higher level protocol. ZigBee part will of course contain some
kind of routing/
meshing algos. If you'd like to implement mesing over raw 802.15.4,
it's up to your
protocol. We plan to provide all hooks necessary for doing this.

quoted

* We do present two example drivers using our stack. One is purely virtual
  one either looping the packets back or connecting several virtual
interfaces (the one at fakelb.c), and the driver for the Freescale MC13192
evaluation boards (13192-SARD, 13192-EVK) using our custom firmware
(currently only available at request, we are working on publishing it). The
driver for the Atmel at86rf230/at86rf231 chips will follow in several
weeks.

Is the virtual interface just like mac80211_hwsim for 802.11 ?h

More or less.We do not implement the global 'monitor' interface, only separate
radios.  We have a page in the wiki that describes usage of this
virtual device driver:
http://apps.sourceforge.net/trac/linux-zigbee/wiki/GettingStarted

-- 
With best wishes
Dmitry