libusb_interface_descriptor
} libusb_interface_descriptor __aligned(sizeof(void *));
struct libusb_interface_descriptor *altsetting;
struct libusb_interface_descriptor *pdinf;
struct libusb_interface_descriptor *ifd;
(nalt * sizeof(libusb_interface_descriptor)) +
ifd = (libusb_interface_descriptor *) (pconfd->interface + nif);