>>> Ack support is something that's been on my radar to add, but haven't had
>>> time. Maybe you have time to do this properly, by making a new netlink >>> item to turn acking on and off and pushing it through iz. >> I would like to see ACK support, too. But I think, it should implemented >> in the mac layer too, for situations where auto ack isn't an option. > > I'm not sure it can be implemented in software, due to the non-realtime > nature of the Linux kernel. The mrf24j40 datasheet hints at it almost > being a requirement to be done in hardware because of the timing > requirements of the 802.15.4 standard. Yes, I think you are right. I didn't realize that the ack frames are send with such a tight timing and without csma/ca. Ack frames are required to be send within 12 symbol periods (192us for 2,4GHz). > We need at some point to add support for switching promiscuous mode on > and off from iz. > >> An other example would be, >> if we have multiple wpan devices configured for a single phy, where each >> devices can get its own short address. > > I sent an email to netdev (probably CC'd here) about this a few months > ago. There's support for it (multiple wpans on a single phy) in the > code, but I don't understand how it would be physically possible to have > multiple wpan devices on a single phy. A hardware phy just isn't set up > that way. You're talking about short addresses (which could be handled > in software with promiscuous mode turned on in hardware), but the > current implementation even allows for separate channels, which seems > impossible. Supporting multiple channels in parallel would be nice, but I fear there is no phy supporting this ;) The handling of the multiple wpan devices isn't clear to me too. Time for bed now, I hope I will have a look at the irq setup tomorrow. Thanks, Sascha -- Hi! I'm a .signature virus! Copy me into your ~/.signature to help me spread! ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar _______________________________________________ Linux-zigbee-devel mailing list Linux-zigbee-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-zigbee-devel
