On Thu, Nov 11, 2010 at 06:03:35AM -0800, Lighthart, EricX wrote: > User space cannot learn the current state of a GPIO key or switch. > Input system reports only changes, not state. > > Add two sysfs attributes, one each for keys and switches, that > report lists of keys or switches currently "on." There's EVIOCG* ioctl()s for this. Something sysfs (or a widely distributed utility) would be very helpful but there is actually a facility to read the state. > drivers/input/keyboard/gpio_keys.c | 68 ++++++++++++++++++++++++++++-------- If something is needed here it should be done as part of the input layer, not in a driver specific fashion - there's nothing specific to GPIO keys here. -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
