From 0a5846433c5f08d593a1931ee62d1000b36d5c5f Mon Sep 17 00:00:00 2001
From: Juan Lang <juan.lang@gmail.com>
Date: Wed, 19 Sep 2007 17:55:35 -0700
Subject: [PATCH] Save class GUID to registry when creating a device
---
 dlls/setupapi/devinst.c |   29 ++++++++++++++++++-----------
 1 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/dlls/setupapi/devinst.c b/dlls/setupapi/devinst.c
index 80b965a..4c9b513 100644
--- a/dlls/setupapi/devinst.c
+++ b/dlls/setupapi/devinst.c
@@ -147,6 +147,18 @@ static void SETUPDI_FreeDeviceInfo(struc
     HeapFree(GetProcessHeap(), 0, devInfo);
 }
 
+static void SETUPDI_GuidToString(const GUID *guid, LPWSTR guidStr)
+{
+    static const WCHAR fmt[] = {'{','%','0','8','X','-','%','0','4','X','-',
+        '%','0','4','X','-','%','0','2','X','%','0','2','X','-','%','0','2',
+        'X','%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','%',
+        '0','2','X','}',0};
+
+    sprintfW(guidStr, fmt, guid->Data1, guid->Data2, guid->Data3,
+        guid->Data4[0], guid->Data4[1], guid->Data4[2], guid->Data4[3],
+        guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
+}
+
 /* Adds a device with GUID guid and identifer devInst to set.  Allocates a
  * struct DeviceInfo, and points the returned device info's Reserved member
  * to it.
@@ -171,11 +183,17 @@ static BOOL SETUPDI_AddDeviceToSet(struc
                     sizeof(SP_DEVINFO_DATA));
         if (set->devices)
         {
+            WCHAR classGuidStr[39];
+
             *dev = &set->devices[set->cDevices++];
             (*dev)->cbSize = sizeof(SP_DEVINFO_DATA);
             memcpy(&(*dev)->ClassGuid, guid, sizeof(GUID));
             (*dev)->DevInst = devInst;
             (*dev)->Reserved = (ULONG_PTR)devInfo;
+            SETUPDI_GuidToString(guid, classGuidStr);
+            SetupDiSetDeviceRegistryPropertyW((HDEVINFO)set,
+                *dev, SPDRP_CLASSGUID, (const BYTE *)classGuidStr,
+                lstrlenW(classGuidStr) * sizeof(WCHAR));
             ret = TRUE;
         }
         else
@@ -186,17 +204,6 @@ static BOOL SETUPDI_AddDeviceToSet(struc
     }
     return ret;
 }
-static void SETUPDI_GuidToString(const GUID *guid, LPWSTR guidStr)
-{
-    static const WCHAR fmt[] = {'{','%','0','8','X','-','%','0','4','X','-',
-        '%','0','4','X','-','%','0','2','X','%','0','2','X','-','%','0','2',
-        'X','%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','%',
-        '0','2','X','}',0};
-
-    sprintfW(guidStr, fmt, guid->Data1, guid->Data2, guid->Data3,
-        guid->Data4[0], guid->Data4[1], guid->Data4[2], guid->Data4[3],
-        guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
-}
 
 /***********************************************************************
  *              SetupDiBuildClassInfoList  (SETUPAPI.@)
-- 
1.4.1