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author | Olof Johansson <olof@lixom.net> | 2012-03-13 21:35:51 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-13 21:37:04 -0700 |
commit | 2cd36877ad1c61429e00c099b6903ebcd936ca00 (patch) | |
tree | c9f7618f3b49c2ba5516c9023ba7e5604aa6b08c /Documentation/devicetree | |
parent | b51425becfe127e0c17a8501ffa079b37241ed11 (diff) | |
download | op-kernel-dev-2cd36877ad1c61429e00c099b6903ebcd936ca00.zip op-kernel-dev-2cd36877ad1c61429e00c099b6903ebcd936ca00.tar.gz |
Input: of_keymap - add device tree bindings for simple key matrices
This adds a simple device tree binding for simple key matrix data and
a helper to fill in the platform data.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r-- | Documentation/devicetree/bindings/input/matrix-keymap.txt | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/matrix-keymap.txt b/Documentation/devicetree/bindings/input/matrix-keymap.txt new file mode 100644 index 0000000..3cd8b98 --- /dev/null +++ b/Documentation/devicetree/bindings/input/matrix-keymap.txt @@ -0,0 +1,19 @@ +A simple common binding for matrix-connected key boards. Currently targeted at +defining the keys in the scope of linux key codes since that is a stable and +standardized interface at this time. + +Required properties: +- linux,keymap: an array of packed 1-cell entries containing the equivalent + of row, column and linux key-code. The 32-bit big endian cell is packed + as: + row << 24 | column << 16 | key-code + +Optional properties: +Some users of this binding might choose to specify secondary keymaps for +cases where there is a modifier key such as a Fn key. Proposed names +for said properties are "linux,fn-keymap" or with another descriptive +word for the modifier other from "Fn". + +Example: + linux,keymap = < 0x00030012 + 0x0102003a >; |