usb: gadget: add endpoint capabilities flags

	void (*fifo_flush) (struct usb_ep *ep);

};

/**

 * struct usb_ep_caps - endpoint capabilities description

 * @type_control:Endpoint supports control type (reserved for ep0).

 * @type_iso:Endpoint supports isochronous transfers.

 * @type_bulk:Endpoint supports bulk transfers.

 * @type_int:Endpoint supports interrupt transfers.

 * @dir_in:Endpoint supports IN direction.

 * @dir_out:Endpoint supports OUT direction.

 */

struct usb_ep_caps {

	unsigned type_control:1;

	unsigned type_iso:1;

	unsigned type_bulk:1;

	unsigned type_int:1;

	unsigned dir_in:1;

	unsigned dir_out:1;

};

/**

 * struct usb_ep - device side representation of USB endpoint

 * @name:identifier for the endpoint, such as "ep-a" or "ep9in-bulk"

 * @ops: Function pointers used to access hardware-specific operations.

 * @ep_list:the gadget's ep_list holds all of its endpoints

 * @caps:The structure describing types and directions supported by endoint.

 * @maxpacket:The maximum packet size used on this endpoint.  The initial

 *	value can sometimes be reduced (hardware allowing), according to

 *      the endpoint descriptor used to configure the endpoint.

 * gadget->ep_list.  the control endpoint (gadget->ep0) is not in that list,

 * and is accessed only in response to a driver setup() callback.

 */

struct usb_ep {

	void			*driver_data;

	const char		*name;

	const struct usb_ep_ops	*ops;

	struct list_head	ep_list;

	struct usb_ep_caps	caps;

	bool			claimed;

	unsigned		maxpacket:16;

	unsigned		maxpacket_limit:16;