Am 27.03.2013 um 14:55 schrieb Kent A. Reed: > On 3/27/2013 2:52 AM, Michael Haberler wrote: >> I'm entertaining ideas here - it would not be good if the price for using >> such devices would be a collection of special-purpose hacks per-platform and >> per-device. > > But of course that is just what the pick-an-IP-from-column-A and one > from column-B, and ..., approach in the ARM world is doing to the entire > smart-devices industry :-( > > The curmudgeon in me worries we're trying to out-ski an avalanche. > Exhilarating for as long as it's still behind you; crushing once it > catches up.
Well I dont see really that many different patterns: - shared memory between RTAPI and the device, pin-structured or otherwise (eg some arbitrary data type not fitting the HAL type model) - some type of I/O memory - some kind of queue, where the HAL ringbuffer might fit in, provided the device behavior is programmable - register polling, which could be memory access or some I/O instruction like inb/outb - interrupts, which are probably not a good idea not sure what can be abstracted or supported by generalized primitives here, but then I'm not that clueful in this area maybe Peter has some ideas? - Michael > > I'm glad you're thinking ahead (and like the ring buffer as supporting > infrastructure). > > Regards, > Kent > > > ------------------------------------------------------------------------------ > Own the Future-Intel® Level Up Game Demo Contest 2013 > Rise to greatness in Intel's independent game demo contest. > Compete for recognition, cash, and the chance to get your game > on Steam. $5K grand prize plus 10 genre and skill prizes. > Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ Own the Future-Intel® Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
