From b16cef0dc0a88641b0253145c3c397b5f5cc9a52 Mon Sep 17 00:00:00 2001
From: Juan Lang <juan.lang@gmail.com>
Date: Thu, 20 Sep 2007 09:14:27 -0700
Subject: [PATCH] Save class GUID to registry when creating a device
---
 dlls/setupapi/devinst.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/dlls/setupapi/devinst.c b/dlls/setupapi/devinst.c
index e86b062..3bf8ca2 100644
--- a/dlls/setupapi/devinst.c
+++ b/dlls/setupapi/devinst.c
@@ -183,11 +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
-- 
1.4.1