HID: wiimote: Add extension initializer stubs

	WIIEXT_NUNCHUCK,	/* Nintendo nunchuck controller */

};

/* diable all extensions */

static void ext_disable(struct wiimote_ext *ext)

{

	unsigned long flags;

	spin_lock_irqsave(&ext->wdata->state.lock, flags);

	ext->motionp = false;

	ext->ext_type = WIIEXT_NONE;

	spin_unlock_irqrestore(&ext->wdata->state.lock, flags);

}

static bool motionp_read(struct wiimote_ext *ext)

{

	return false;

}

static __u8 ext_read(struct wiimote_ext *ext)

{

	return WIIEXT_NONE;

}

static void ext_enable(struct wiimote_ext *ext, bool motionp, __u8 ext_type)

{

	unsigned long flags;

	spin_lock_irqsave(&ext->wdata->state.lock, flags);

	ext->motionp = motionp;

	ext->ext_type = ext_type;

	spin_unlock_irqrestore(&ext->wdata->state.lock, flags);

}

static void wiiext_worker(struct work_struct *work)

{

	struct wiimote_ext *ext = container_of(work, struct wiimote_ext,

									worker);

	bool motionp;

	__u8 ext_type;

	ext_disable(ext);

	motionp = motionp_read(ext);

	ext_type = ext_read(ext);

	ext_enable(ext, motionp, ext_type);

}

/* schedule work only once, otherwise mark for reschedule */