int usb_get_configuration_no(struct usb_device *dev, unsigned char *buffer,
int cfgno);
int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type,
int usb_get_configuration_no(struct usb_device *dev, unsigned char *buffer,
int cfgno);
int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type,