setupapi: Set the device class in SetupDiBuildDriverInfoList().

This matches Windows XP behaviour. In Vista and later this appears to be done by UpdateDriverForPlugAndPlayDevices(). Signed-off-by: Zebediah Figura <z.figura12@gmail.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

setupapi: Set the device class in SetupDiBuildDriverInfoList().
7d152715 · Zebediah Figura · Alexandre Julliard · 161a0c25 · 7d152715
Commit 7d152715 authored Nov 07, 2019 by Zebediah Figura Committed by Alexandre Julliard Nov 08, 2019
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devinst.c dlls/setupapi/devinst.c +14 -0

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--- a/dlls/setupapi/devinst.c
+++ b/dlls/setupapi/devinst.c
@@ -4545,6 +4545,20 @@ BOOL WINAPI SetupDiBuildDriverInfoList(HDEVINFO devinfo, SP_DEVINFO_DATA *device
        }
    }

+    if (device->driver_count)
+    {
+        WCHAR classname[MAX_CLASS_NAME_LEN], guidstr[39];
+        GUID class;
+
+        if (SetupDiGetINFClassW(device->drivers[0].inf_path, &class, classname, ARRAY_SIZE(classname), NULL))
+        {
+            device_data->ClassGuid = device->class = class;
+            SETUPDI_GuidToString(&class, guidstr);
+            RegSetValueExW(device->key, L"ClassGUID", 0, REG_SZ, (BYTE *)guidstr, sizeof(guidstr));
+            RegSetValueExW(device->key, L"Class", 0, REG_SZ, (BYTE *)classname, wcslen(classname) * sizeof(WCHAR));
+        }
+    }
+
    return TRUE;
 }