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-rw-r--r--MdeModulePkg/Include/Ppi/UsbController.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/MdeModulePkg/Include/Ppi/UsbController.h b/MdeModulePkg/Include/Ppi/UsbController.h
index 10e025df55..f0537ecb66 100644
--- a/MdeModulePkg/Include/Ppi/UsbController.h
+++ b/MdeModulePkg/Include/Ppi/UsbController.h
@@ -2,7 +2,7 @@
Define APIs to retrieve USB Host Controller Info such as controller type and
I/O Port Base Address.
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
@@ -49,6 +49,12 @@ typedef struct _PEI_USB_CONTROLLER_PPI PEI_USB_CONTROLLER_PPI;
///
#define PEI_EHCI_CONTROLLER 0x03
+///
+/// This bit is used in the ControllerType return parameter of GetUsbController()
+/// to identify the USB Host Controller type as XHCI
+///
+#define PEI_XHCI_CONTROLLER 0x04
+
/**
Retrieve USB Host Controller Info such as controller type and I/O Base Address.