On Mon, Dec 1, 2014 at 11:59 AM, Richard Weinberger <richard@xxxxxx> wrote: > Am 01.12.2014 um 11:49 schrieb Harald Geyer: >> Any input from gpiolib people about what the proper fix would be in >> their opinion, of course is appreciated. I don't think the dht11 driver >> is doing anything unreasonable per se, so maybe they can clarify how >> the API is intended to be used? > > Your driver sets up a GPIO as IRQ and then you switch the mode to output > to enable the DHT sensor. > This is not an API issue, it is an design issue. > I'm not a hardware expert but AFAIK setting an IRQ pin into output mode can > lead to undefined behavior. Well that check is there exactly to prevent madness like this. IRQs on pins set to output *does* *not* *make* *sense*. Remove the IRQ before setting the pin to output and vice versa and everyone will be happier. 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
