controller vibration / rumble

Been toying with adding rumble to the gamepad api. Something like:

partial interface Gamepad {
    Rumbler[]   getRumblers();
};

interface Rumbler {
    readonly    attribute DOMString           id;

    void        start(double strength, double periodInMilliseconds); //
leave out period to rumble indefinitely
    void        stop();
};

Any comments on that?
Should it resemble the vibrations api more (with patterns, and turning it
off by setting strength to 0)?
Should it be in the vibrations api instead (I don't think so)?

Regards,
Mikkel Staunsholm
@staunsholm


PS! I don't know if it is possible/feasible to make rumbling work on
osx/linux - fx. JInput doesn't report any ps3 rumblers on osx...