usbfs_setinterface 1389 third_party/libusb/src/libusb/os/linux_usbfs.c 	struct usbfs_setinterface setintf;
usbfs_setinterface  138 third_party/libusb/src/libusb/os/linux_usbfs.h #define IOCTL_USBFS_SETINTF	_IOR('U', 4, struct usbfs_setinterface)