usb_cdc_union_descriptor
struct usb_cdc_union_descriptor *ud;
ud = (struct usb_cdc_union_descriptor *)desc;
struct usb_cdc_union_descriptor *ud;
ud = (struct usb_cdc_union_descriptor *)desc;
const struct usb_cdc_union_descriptor *uniond;
(struct usb_cdc_union_descriptor *)desc;