On 2017-06-12 19:39:03 [+0200], rolf.freitag@xxxxxxxx wrote: > When you use interrupt driven input, you have to wait for the interrupt and that depends on parameters like at how many bytes in the FIFO an interrupt is triggered. > But you can use polling instead of waiting for IRQ, e. g. check every 40 microseconds for new bytes. No, I think it is better to configure things properly and wait for the interrupt to occur instead of busy-polling for things to happen. > Regards, > > Rolf Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html