USBDEVFS_GET_SPEED  221 include/uapi/linux/usbdevice_fs.h #define USBDEVFS_GET_SPEED         _IO('U', 31)
USBDEVFS_GET_SPEED  221 tools/include/uapi/linux/usbdevice_fs.h #define USBDEVFS_GET_SPEED         _IO('U', 31)