fix no ascii char

[mirror_edk2.git] / MdePkg / Include / Protocol / DevicePath.h

diff --git a/MdePkg/Include/Protocol/DevicePath.h b/MdePkg/Include/Protocol/DevicePath.h
index 48c8f4b77bb05c42ca245c393f6b418e2ff015ea..f5df67a97f2704eb687a665fd9011ecc4a566a3a 100644 (file)
--- a/MdePkg/Include/Protocol/DevicePath.h
+++ b/MdePkg/Include/Protocol/DevicePath.h
@@ -40,10 +40,30 @@
 \r
 #pragma pack(1)\r
 \r
+/**\r
+  This protocol can be used on any device handle to obtain generic path/location \r
+  information concerning the physical device or logical device. If the handle does \r
+  not logically map to a physical device, the handle may not necessarily support \r
+  the device path protocol. The device path describes the location of the device \r
+  the handle is for. The size of the Device Path can be determined from the structures \r
+  that make up the Device Path.\r
+**/\r
 typedef struct {\r
-  UINT8 Type;\r
-  UINT8 SubType;\r
-  UINT8 Length[2];\r
+  UINT8 Type;       ///< 0x01 Hardware Device Path\r
+                    ///< 0x02 ACPI Device Path\r
+                    ///< 0x03 Messaging Device Path\r
+                    ///< 0x04 Media Device Path\r
+                    ///< 0x05 BIOS Boot Specification Device Path\r
+                    ///< 0x7F End of Hardware Device Path\r
+                    \r
+  UINT8 SubType;    ///< Varies by Type\r
+                    ///< 0xFF End Entire Device Path, or\r
+                    ///< 0x01 End This Instance of a Device Path and start a new\r
+                    ///< Device Path\r
+                    \r
+  UINT8 Length[2];  ///< Specific Device Path data. Type and Sub-Type define\r
+                    ///< type of data. Size of data is included in Length.\r
+                    \r
 } EFI_DEVICE_PATH_PROTOCOL;\r
 \r
 ///\r
@@ -110,6 +130,7 @@ typedef struct {
   ///\r
   /// Optional variable length _HIDSTR\r
   /// Optional variable length _UIDSTR\r
+  /// Optional variable length _CIDSTR\r
   ///\r
 } ACPI_EXTENDED_HID_DEVICE_PATH;\r
 \r