1/*
 2 * This header declares the utility functions used by "Gadget Zero", plus
 3 * interfaces to its two single-configuration function drivers.
 4 */
 5
 6#ifndef __G_ZERO_H
 7#define __G_ZERO_H
 8
 9#include <linux/usb/composite.h>
10
11/* global state */
12extern unsigned buflen;
13extern const struct usb_descriptor_header *otg_desc[];
14
15/* common utilities */
16struct usb_request *alloc_ep_req(struct usb_ep *ep, int len);
17void free_ep_req(struct usb_ep *ep, struct usb_request *req);
18void disable_endpoints(struct usb_composite_dev *cdev,
19		struct usb_ep *in, struct usb_ep *out,
20		struct usb_ep *iso_in, struct usb_ep *iso_out);
21
22/* configuration-specific linkup */
23int sourcesink_add(struct usb_composite_dev *cdev, bool autoresume);
24int loopback_add(struct usb_composite_dev *cdev, bool autoresume);
25
26#endif /* __G_ZERO_H */