drivers/usb/gadget/g_zero.h

   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 */
  12 extern unsigned buflen;
  13 extern const struct usb_descriptor_header *otg_desc[];
  14
  15 /* common utilities */
  16 struct usb_request *alloc_ep_req(struct usb_ep *ep);
  17 void free_ep_req(struct usb_ep *ep, struct usb_request *req);
  18 void disable_endpoints(struct usb_composite_dev *cdev,
  19                 struct usb_ep *in, struct usb_ep *out);
  20
  21 /* configuration-specific linkup */
  22 int sourcesink_add(struct usb_composite_dev *cdev, bool autoresume);
  23 int loopback_add(struct usb_composite_dev *cdev, bool autoresume);
  24
  25 #endif /* __G_ZERO_H */