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	*/			*/
	static void			static void
	xenbusb_devices_changed(struct xs_watch watch, const char *vec,			xenbusb_devices_changed(struct xs_watch watch, const char *vec,
	unsigned int len)			unsigned int len)
	{			{
	struct xenbusb_softc *xbs;			struct xenbusb_softc *xbs;
	device_t dev;			device_t dev;
	char *node;			char *node;
	char *bus;
	char *type;			char *type;
	char *id;			char *id;
	char *p;			char *p;
	u_int component;			u_int component;

	xbs = (struct xenbusb_softc *)watch->callback_data;			xbs = (struct xenbusb_softc *)watch->callback_data;
	dev = xbs->xbs_dev;			dev = xbs->xbs_dev;

	if (len <= XS_WATCH_PATH) {			if (len <= XS_WATCH_PATH) {
	device_printf(dev, "xenbusb_devices_changed: "			device_printf(dev, "xenbusb_devices_changed: "
	"Short Event Data.\n");			"Short Event Data.\n");
	return;			return;
	}			}

	node = strdup(vec[XS_WATCH_PATH], M_XENBUS);			node = strdup(vec[XS_WATCH_PATH], M_XENBUS);
	p = strchr(node, '/');			p = strchr(node, '/');
	if (p == NULL)			if (p == NULL)
	goto out;			goto out;
	bus = node;
	*p = 0;			*p = 0;
	type = p + 1;			type = p + 1;

	p = strchr(type, '/');			p = strchr(type, '/');
	if (p == NULL)			if (p == NULL)
	goto out;			goto out;
	*p++ = 0;			*p++ = 0;

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