/* * This header declares the utility functions used by "Gadget Zero", plus * interfaces to its two single-configuration function drivers. */ #ifndef __G_ZERO_H #define __G_ZERO_H #include <linux/usb/composite.h> /* global state */
extern unsigned buflen;
extern const struct usb_descriptor_header *otg_desc[]; /* common utilities */ struct usb_request *alloc_ep_req(struct usb_ep *ep); void free_ep_req(struct usb_ep *ep, struct usb_request *req); void disable_endpoints(struct usb_composite_dev *cdev, struct usb_ep *in, struct usb_ep *out); /* configuration-specific linkup */ int sourcesink_add(struct usb_composite_dev *cdev);
int loopback_add(struct usb_composite_dev *cdev);
#endif /* __G_ZERO_H */