On Tue, May 10, 2016 at 6:40 PM, Crestez Dan Leonard <leonard.crestez@xxxxxxxxx> wrote: > [Me] >> ChangeLog v5->v6: >> - Add a loop counter to the threaded value poll function: let's >> just loop here for at maximum 10 loops before we exit and >> let the thread re-trigger if more interrupts arrived. > > This only serves to hide the problem. Not really. The system can preempt after exiting the thread but before processing the next set of samples. > Version 5 seems preferable. Or > even just adding msleep(10) in that infinite loop. That provides a preemption point I guess but usleep_range() is usually preferrable for such cases. 10ms is way to long time to wait, because the max sample frequency will be 1/10ms = 100Hz and some ST sensors I have support 1kHz updates even. The usleep range would need to be very short. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
