Robert Schwebel wrote: > ... > In december, we have made a synchronisation meeting with the VW people > who made the initial port for 2.4; they are more focussed on having > higher level transport protocols ontop of the "raw" socket interface we > currently use. During that process we have reviewed the user interface > with regard to their use cases, so it will have to be changed a little > bit before we have something which is in a state to be posted on lkml. >
Beyond the outstanding comparably minor API adjustments, we furthermore discussed first ideas how to define the lowest interface, i.e. the CAN network device layer. That should be done in a way which makes porting CAN low-level drivers between the standard kernel and a real-time Linux CAN stack trivial. That's a unique chance (compared to the situation of RTnet e.g.), so we should take it. This real-time stack is to be derived from the RT-SJA1000 driver Wolfgang pointed at. It is already based on an abstraction layer (RTDM) that makes it portable across many of the various RT-Linux variant. So far this includes support for Xenomai and RTAI, RTLinux/GPL is planning to adopt RTDM as well. This means we could end up with portable CAN applications and drivers, RT and non-RT! As Robert said, it "just" requires some resources for implementing this... ;) Jan -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 256 bytes Desc: OpenPGP digital signature Url : http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20051229/b2dc7ccb/attachment.pgp
