usb_string 1670 include/linux/usb.h extern int usb_string(struct usb_device *dev, int index, usb_string 495 include/linux/usb/composite.h struct usb_string *str); usb_string 496 include/linux/usb/composite.h extern struct usb_string *usb_gstrings_attach(struct usb_composite_dev *cdev, usb_string 958 include/linux/usb/gadget.h struct usb_string *strings;