On Tue, Oct 23, 2012 at 1:06 PM, Mathias Nyman <mathias.ny...@linux.intel.com> wrote: > [Me] >> Anyway, if the callback is only called internally in the GPIOlib >> why are you making the function public to the entire >> kernel > > Thought I'd do it the same was as gpio_direction_output() and > gpio_direction_input(), but if there is no need for getting the direction > outside gpiolob then it can be skipped. Main motivation was to get correct > direction values in debug and sysfs after boot.
OK then keep them static til the day they are needed. > gpiolib currently uses cached values of gpio_direction_output/input() in > sysfs. If the .get_direction callback exists it is used to refresh the > cached values. OK! (I'm not yet familiar enough with gpiolib as you can see ...) Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
