diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 8e6ef671be9b..0e7d0e81a7cb 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -2537,6 +2537,9 @@ static long usbdev_do_ioctl(struct file *file, unsigned int cmd,
 	case USBDEVFS_DROP_PRIVILEGES:
 		ret = proc_drop_privileges(ps, p);
 		break;
+	case USBDEVFS_GET_SPEED:
+		ret = ps->dev->speed;
+		break;
 	}
 
  done:
diff --git a/include/uapi/linux/usbdevice_fs.h b/include/uapi/linux/usbdevice_fs.h
index a8653a6f40df..0bbfd4abd2e3 100644
--- a/include/uapi/linux/usbdevice_fs.h
+++ b/include/uapi/linux/usbdevice_fs.h
@@ -156,6 +156,11 @@ struct usbdevfs_streams {
 	unsigned char eps[0];
 };
 
+/*
+ * USB_SPEED_* values returned by USBDEVFS_GET_SPEED are defined in
+ * linux/usb/ch9.h
+ */
+
 #define USBDEVFS_CONTROL           _IOWR('U', 0, struct usbdevfs_ctrltransfer)
 #define USBDEVFS_CONTROL32           _IOWR('U', 0, struct usbdevfs_ctrltransfer32)
 #define USBDEVFS_BULK              _IOWR('U', 2, struct usbdevfs_bulktransfer)
@@ -190,5 +195,6 @@ struct usbdevfs_streams {
 #define USBDEVFS_ALLOC_STREAMS     _IOR('U', 28, struct usbdevfs_streams)
 #define USBDEVFS_FREE_STREAMS      _IOR('U', 29, struct usbdevfs_streams)
 #define USBDEVFS_DROP_PRIVILEGES   _IOW('U', 30, __u32)
+#define USBDEVFS_GET_SPEED         _IO('U', 31)
 
 #endif /* _UAPI_LINUX_USBDEVICE_FS_H */