int usb_pdi_read_endpoint( usb_ep_t *ep, void *ptr, int size) USB_UDEV_REENTRANT_SIGN;
int usb_pdi_write_endpoint( usb_ep_t *ep, const void *ptr, int size) USB_UDEV_REENTRANT_SIGN;
int usb_pdi_read_endpoint( usb_ep_t *ep, void *ptr, int size) USB_UDEV_REENTRANT_SIGN;
int usb_pdi_write_endpoint( usb_ep_t *ep, const void *ptr, int size) USB_UDEV_REENTRANT_SIGN;