On Tue, Oct 14, 2014 at 1:50 AM, Soren Brinkmann <[email protected]> wrote:
> Add an attribute 'wakeup' to the GPIO sysfs interface which allows > marking/unmarking a GPIO as wake IRQ. > The file 'wakeup' is created in each exported GPIOs directory, if an IRQ > is associated with that GPIO and the irqchip implements set_wake(). > Writing 'enabled' to that file will enable wake for that GPIO, while > writing 'disabled' will disable wake. > Reading that file will return either 'disabled' or 'enabled' depening on > the currently set flag for the GPIO's IRQ. > > Signed-off-by: Soren Brinkmann <[email protected]> > Reviewed-by: Alexandre Courbot <[email protected]> > --- > v2: > - fix error path to unlock mutex before return As you're adding an ABI, you should be patching Documentation/ABI/testing/sysfs-gpio and Documentation/gpio/sysfs.txt in this patch. While I *HATE* the idea of adding IRQ support to userspace for GPIOs, this "just" adds the wakeup capacity, so I guess I'm OK with it. Provided you add it to the ABI doc... Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
