1.Fix a typo in DevicePath Driver

2.Fix a bug in EBC, the periodic callback timer should be 1s
3.Add a dependency file for DriverSample in UI since it consume EFI_SIMPLE_TEXT_OUT protocol.
4.Fix a memory allocation defects in DriverSample.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2227 6f19259b-4bc3-4df7-8a09-765794883524

EdkModulePkg/Universal/DevicePath/Dxe/DevicePathFromText.c

@@ -510,7 +510,7 @@ TrimHexStr (
     Str += 1;
   }
   //
-  // skip preceeding white space
+  // skip preceeding character 'x' or 'X'
   //
   if (*Str && (*Str == 'x' || *Str == 'X')) {
     Str += 1;

EdkModulePkg/Universal/Ebc/Dxe/EbcInt.h

@@ -104,7 +104,8 @@ EbcDebugSignalException (
 // Define a constant of how often to call the debugger periodic callback
 // function.
 //
-#define EBC_VM_PERIODIC_CALLBACK_RATE 1000
+#define EFI_TIMER_UNIT_1MS            (1000 * 10)
+#define EBC_VM_PERIODIC_CALLBACK_RATE (1000 * EFI_TIMER_UNIT_1MS)
 
 EFI_STATUS
 EbcDebugSignalPeriodic (

EdkModulePkg/Universal/UserInterface/DriverSample/DriverSample.c

@@ -242,7 +242,7 @@ Returns:
     //
     // Allocate space for creation of Buffer
     //
-    QuestionId = (UINT16) ((UINTN) (&NVStruc.DynamicCheck));
+    QuestionId = (UINT16) ((UINTN) (&NVStruc.DynamicCheck) - (UINTN) (&NVStruc));
     Status = gBS->AllocatePool (
                     EfiBootServicesData,
                     0x1000,

EdkModulePkg/Universal/UserInterface/DriverSample/DriverSample.dxs

@@ -0,0 +1,26 @@
+/*++
+
+Copyright (c) 2007, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  DriverSample.dxs
+
+Abstract:
+
+  Dependency expression source file.
+  
+--*/
+
+#include <DxeDepex.h>
+
+DEPENDENCY_START
+  EFI_SIMPLE_TEXT_OUT_PROTOCOL_GUID
+DEPENDENCY_END

EdkModulePkg/Universal/UserInterface/DriverSample/DriverSample.msa

@@ -67,6 +67,7 @@
     <Filename>DriverSample.c</Filename>
     <Filename>NVDataStruc.h</Filename>
     <Filename>DriverSample.h</Filename>
+    <Filename>DriverSample.dxs</Filename>
   </SourceFiles>
   <PackageDependencies>
     <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>