On Wed, Oct 07, 2009 at 03:17:54PM +0900, Kyungmin Park wrote:
> Describe the haptic class and how to use
>
> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> ---
> Documentation/haptic-class.txt | 20 ++++++++++++++++++++
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>
> diff --git a/Documentation/haptic-class.txt b/Documentation/haptic-class.txt
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> +
> +Haptic handling under Linux
> +========================
> +
> +In its simplest form, the haptic class just allows control of Haptics from
> +userspace. Haptic appears in /sys/class/haptic/. The maximum level of the
> +haptic is defined in max_level file.
> +
> +To use simple. it provides the oneshot mode. Give millisecond time to this
> +property. It working at given time with pre-defined level.
> +Of course, you can adjust the level by setting level property
"The interface is pretty simple - it provides oneshot mode where user
can specify duration of the effect (in milliseconds) and desired level":
> +
> +# echo ${millisecond} > /sys/class/haptic/<device>/oneshot
> +
> +# echo ${level} > /sys/class/haptic/<device>/level
> +
> +Also you can enable/disable by setting enable property
> +
"You can also enable or disable haptics devices by manipulating 'enable'
attribute:"
> +# echo 1 > /sys/class/haptic/<device>/level -> Enable
^^^^^^ enable
> +# echo 0 > /sys/class/haptic/<device>/level -> Disable
^^^^^^
--
Dmitry
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