Hi Dmitry
ping?
David
On Mon, Dec 16, 2013 at 4:23 PM, David Herrmann <dh.herrmann@xxxxxxxxx> wrote:
> We must not reassign those axes or we will break backwards-compat. Add a
> small note for that so we don't accidentally some day reuse these.
>
> Signed-off-by: David Herrmann <dh.herrmann@xxxxxxxxx>
> ---
> include/uapi/linux/input.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
> index a372627..da1125e 100644
> --- a/include/uapi/linux/input.h
> +++ b/include/uapi/linux/input.h
> @@ -816,6 +816,10 @@ struct input_keymap_entry {
>
> #define ABS_MISC 0x28
>
> +/* ABS_MISC+x is used by HID to assign to unknown axes. Note that they used to
> + * flow over into the MT definitions. For backwards-compatibility, we must
> + * not reassign [0x29-0x2e] */
> +
> #define ABS_MT_SLOT 0x2f /* MT slot being modified */
> #define ABS_MT_TOUCH_MAJOR 0x30 /* Major axis of touching ellipse */
> #define ABS_MT_TOUCH_MINOR 0x31 /* Minor axis (omit if circular) */
> --
> 1.8.5.1
>
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