[PATCH 2/6] usb: Add enum for xHCI

[Patrick Rudolph]

Will be used in future patches.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
---
 include/grub/usb.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/grub/usb.h b/include/grub/usb.h
index 0527a3e2b..f65ac4f5d 100644
--- a/include/grub/usb.h
+++ b/include/grub/usb.h
@@ -47,7 +47,8 @@ typedef enum
     GRUB_USB_SPEED_NONE,
     GRUB_USB_SPEED_LOW,
     GRUB_USB_SPEED_FULL,
-    GRUB_USB_SPEED_HIGH
+    GRUB_USB_SPEED_HIGH,
+    GRUB_USB_SPEED_SUPER
   } grub_usb_speed_t;
 
 typedef int (*grub_usb_iterate_hook_t) (grub_usb_device_t dev, void *data);
-- 
2.26.2