xboxkrnl: Add documentation for *_PORT_BUFFER_* methods

lib/xboxkrnl/xboxkrnl.h

@@ -1729,20 +1729,38 @@ XBAPI XBOX_KEY_DATA XboxEEPROMKey;
 
 XBAPI XBOX_KEY_DATA XboxAlternateSignatureKeys[];
 
+/**
+ * Writes a number of USHORT values from the specified port address into a buffer.
+ * @param Port The memory mapped I/O address of the port. E.g., `(PUSHORT)0x0cf8` for port 0x0CF8.
+ * @param Buffer Pointer to a buffer containing the values to be written.
+ * @param Count Specifies the number of values to be written to the port.
+ */
 XBAPI VOID NTAPI WRITE_PORT_BUFFER_USHORT
 (
     IN PUSHORT Port,
     IN PUSHORT Buffer,
     IN ULONG Count
 );
 
+/**
+ * Writes a number of ULONG values from the specified port address into a buffer.
+ * @param Port The memory mapped I/O address of the port. E.g., `(PULONG)0x0cf8` for port 0x0CF8.
+ * @param Buffer Pointer to a buffer containing the values to be written.
+ * @param Count Specifies the number of values to be written to the port.
+ */
 XBAPI VOID NTAPI WRITE_PORT_BUFFER_ULONG
 (
     IN PULONG Port,
     IN PULONG Buffer,
     IN ULONG Count
 );
 
+/**
+ * Writes a number of UCHAR values from the specified port address into a buffer.
+ * @param Port The memory mapped I/O address of the port. E.g., `(PUCHAR)0x0cf8` for port 0x0CF8.
+ * @param Buffer Pointer to a buffer containing the values to be written.
+ * @param Count Specifies the number of values to be written to the port.
+ */
 XBAPI VOID NTAPI WRITE_PORT_BUFFER_UCHAR
 (
     IN PUCHAR Port,
@@ -2302,20 +2320,38 @@ XBAPI NTSTATUS NTAPI RtlAnsiStringToUnicodeString
     BOOLEAN AllocateDestinationString
 );
 
+/**
+ * Reads a number of USHORT values from the specified port address into a buffer.
+ * @param Port The memory mapped I/O address of the port. E.g., `(PUSHORT)0x0cf8` for port 0x0CF8.
+ * @param Buffer Pointer to a buffer into which the array of values will be written.
+ * @param Count Specifies the number of values to be read from the port and written into the buffer.
+ */
 XBAPI VOID NTAPI READ_PORT_BUFFER_USHORT
 (
     IN PUSHORT Port,
     OUT PUSHORT Buffer,
     IN ULONG Count
 );
 
+/**
+ * Reads a number of ULONG values from the specified port address into a buffer.
+ * @param Port The memory mapped I/O address of the port. E.g., `(PULONG)0x0cf8` for port 0x0CF8.
+ * @param Buffer Pointer to a buffer into which the array of values will be written.
+ * @param Count Specifies the number of values to be read from the port and written into the buffer.
+ */
 XBAPI VOID NTAPI READ_PORT_BUFFER_ULONG
 (
     IN PULONG Port,
     OUT PULONG Buffer,
     IN ULONG Count
 );
 
+/**
+ * Reads a number of UCHAR values from the specified port address into a buffer.
+ * @param Port The memory mapped I/O address of the port. E.g., `(PUCHAR)0x0cf8` for port 0x0CF8.
+ * @param Buffer Pointer to a buffer into which the array of values will be written.
+ * @param Count Specifies the number of values to be read from the port and written into the buffer.
+ */
 XBAPI VOID NTAPI READ_PORT_BUFFER_UCHAR
 (
     IN PUCHAR Port,