Dmitry Eremin-Solenikov wrote: > * Did I miss something? CSMA ? ARQ without hardware assistance ? Security ? (Though I find the concept of link-layer security dubious in most cases.)
Here's my plan from the side of the Qi-Hardware project: we want to use IEEE 802.15.4 as a general connectivity solution for the Ben NanoNote, a bit like WiFi, accepting that rate and range will be inferior. We now have the atben/atusb boards, and all that's missing is the protocol stack. My plan is to tackle things at the driver (AT86RF230/1) and MAC layer, always with TCP/IP-style data communication in mind. Alas, Qi-Hardware is a penniless endeavour and I won't be able to do this as a full-time hobby for much longer. So I don't think I'll have time to do more than getting the basics to work properly. Since it would be a shame to leave things in an almost-usable-yet-not- quite-there state, I've hacked a quick and dirty IPv4 tunnel I call "dirtpan": http://projects.qi-hardware.com/index.php/p/ben-wpan/source/tree/master/tools/dirtpan/ It even survives light SSH but becomes unusable at higher loads, probably due to the lack of CSMA. Here's the video to prove that it works at all: http://downloads.qi-hardware.com/people/werner/wpan/tmp/wpan-ipv4.ogg (I have to admit that I haven't attempted to formally verify my little protocol yet. I'll do that when I get stuck elsewhere.) Anyway, this is the general direction in which I'm heading. If I can be of help with anything specific, please let me know. - Werner ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev _______________________________________________ Linux-zigbee-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-zigbee-devel
