On Tue, Nov 03, 2009 at 06:13:37PM +0530, ???????????? wrote: > Hi List > > I am having doubt whether UIO supports asynchronous notification or not. The > Documentaion<http://www.kernel.org/doc/htmldocs/uio-howto.html#wait_for_interrupts>says > u have to block on read system call to get the event. > > I think the interrupt implementation in user space needs asynchronous > events. right? > > In case of RT signals, I am not sure whether the latency will be bearable or > not. And by default queuing capacity of RT signals is 1024. You may have to > override that, in ur case, depending upon ur hardware. We have laser welding robots using the UIO code just fine. Same goes for robots cutting wood at 3 meters a second, so I think the latency of UIO is not an issue :) good luck, greg k-h -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
