On Thu, Mar 13, 2014 at 4:05 PM, Cox, Alan <alan.cox@xxxxxxxxx> wrote: >> > + gpiod_set_raw_value(desc, !!((1 << i) & *value)); >> >> What is this? How can the expression !!((1 << i) possibly evaluate to >> anything else than "true"? I don't get it. Just (desc, *value) seem more >> apropriate. > > > The expression is !!((1 << i) & *value) > > so its the standard C sematic for 'logical and' ? 1 : 0 Hm I missed the first paranthesis when parsing in my head, all wrong, too bad. Thanks Alan. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
