From e9d96e87acbd79b22837ac4b225ceb0bd0e1942e Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Wed, 18 May 2011 12:20:19 +1000 Subject: Add a property to toggle function key mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On some keyboards, the multimedia function keys are overlaid with the F keys. This property enables clients to switch the primary mode of these F keys between function keys and multimedia keys. Some keyboards provide an Fn key to toggle between the modes. This is hardware-specific and may or may not work on any given keyboard device. The current imlementation is only hooked up to apple keyboards. The kernel provides a tweak to enable/disable. /sys/module/hid_apple/parameters/fnmode 0 .. keyboard sends Fx keys, Fn disabled 1 .. keyboard sends multimedia keys, Fn toggles to function keys 2 .. keyboard sends function keys, Fn toggles to multimedia keys If fnmode is on 0, we force it to 2. Signed-off-by: Peter Hutterer Reviewed-by: Michel Dänzer --- include/evdev-properties.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/evdev-properties.h b/include/evdev-properties.h index 16f2af7..745a1ba 100644 --- a/include/evdev-properties.h +++ b/include/evdev-properties.h @@ -75,4 +75,16 @@ /* CARD32 */ #define EVDEV_PROP_THIRDBUTTON_THRESHOLD "Evdev Third Button Emulation Threshold" +/* CARD8, 1 value, + This property is initialized on devices that have multimedia keys on the + function keys. The value of the property selects the default behaviour + for the function keys. The behaviour of the fn key (if any exists) is + hardware specific. On some hardware, fn may toggle the other set of + functions available on the keys. + + 0 send functions keys by default, fn may toggle to multimedia keys + 1 send multimedia keys by default, fn may toggle to function keys +*/ +#define EVDEV_PROP_FUNCTION_KEYS "Evdev Function Keys" + #endif -- cgit v1.2.3