Hi Jiri and Marcel, 2018-05-11 23:39 GMT+08:00 Marcel Holtmann <mar...@holtmann.org>: > Hi Jian-Hong, > >> A Low-Power Wide-Area Network (LPWAN) is a type of wireless >> telecommunication wide area network designed to allow long range >> communications at a low bit rate among things (connected objects), such >> as sensors operated on a battery. It can be used widely in IoT area. >> LoRaWAN, which is one kind of implementation of LPWAN, is a medium >> access control (MAC) layer protocol for managing communication between >> LPWAN gateways and end-node devices, maintained by the LoRa Alliance. >> LoRaWAN™ Specification could be downloaded at: >> https://lora-alliance.org/lorawan-for-developers >> >> However, LoRaWAN is not implemented in Linux kernel right now, so I am >> trying to develop it. Here is my repository: >> https://github.com/starnight/LoRa/tree/lorawan-ndo/LoRaWAN >> >> Because it is a kind of network, the ideal usage in an user space >> program should be like "socket(PF_LORAWAN, SOCK_DGRAM, 0)" and with >> other socket APIs. Therefore, the definitions like AF_LORAWAN, >> PF_LORAWAN ..., must be listed in the header files of glibc. >> For the driver in kernel space, the definitions also must be listed in >> the corresponding Linux socket header files. >> Especially, both are for the testing programs. >> >> Back to the mentioned "LoRaWAN is not implemented in Linux kernel now". >> Could or should we add the definitions into corresponding kernel header >> files now, if LoRaWAN will be accepted as a subsystem in Linux? > > when you submit your LoRaWAN subsystem to netdev for review, include a patch > that adds these new address family definitions. Just pick the next one > available. There will be no pre-allocation of numbers until your work has > been accepted upstream. Meaning, that the number might change if other > address families get merged before yours. So you have to keep updating. glibc > will eventually follow the number assigned by the kernel.
Thanks for your guidance. I will follow the steps. Thanks a lot, Jian-Hong Pan > Regards > > Marcel >
