[PATCH v4 2/3] win32u: Set DEVPKEY_Device_BusNumber for GPUs.

[Paul Gofman]

From: Paul Gofman

---
 dlls/gdi32/tests/driver.c | 12 ++++++++++++
 dlls/win32u/sysparams.c   | 17 +++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/dlls/gdi32/tests/driver.c b/dlls/gdi32/tests/driver.c
index 092bde0e5c1..eabd3ed15b8 100644
--- a/dlls/gdi32/tests/driver.c
+++ b/dlls/gdi32/tests/driver.c
@@ -1006,6 +1006,7 @@ static void test_gpu_device_properties_guid(const GUID *devinterface_guid)
     WCHAR device_id[256];
     DEVPROPTYPE type;
     unsigned int i;
+    UINT32 value;
     HDEVINFO set;
     BOOL ret;

@@ -1030,6 +1031,17 @@ static void test_gpu_device_properties_guid(const GUID *devinterface_guid)
         ok(ret, "Got unexpected ret %d, GetLastError() %lu.\n", ret, GetLastError());
         ok(type == DEVPROP_TYPE_STRING, "Got type %ld.\n", type);

+        ret = SetupDiGetDevicePropertyW(set, &device_data, &DEVPKEY_Device_BusNumber, &type,
+                (BYTE *)&value, sizeof(value), NULL, 0);
+        if (!wcsicmp(device_id, L"root\basicrender") || !wcsicmp(device_id, L"root\basicdisplay"))
+        {
+            ok(!ret, "Found Bus Id.\n");
+        }
+        else
+        {
+            ok(ret, "Got unexpected ret %d, GetLastError() %lu, %s.\n", ret, GetLastError(), debugstr_w(device_id));
+            ok(type == DEVPROP_TYPE_UINT32, "Got type %ld.\n", type);
+        }
         ++i;
     }
     SetupDiDestroyDeviceInfoList(set);
diff --git a/dlls/win32u/sysparams.c b/dlls/win32u/sysparams.c
index a02158a17a0..8ed27860cf5 100644
--- a/dlls/win32u/sysparams.c
+++ b/dlls/win32u/sysparams.c
@@ -101,6 +101,14 @@ static const WCHAR devpkey_device_matching_device_id[] =
     '\','0','0','0','8'
 };

+static const WCHAR devpkey_device_bus_number[] =
+{
+    'P','r','o','p','e','r','t','i','e','s',
+    '\','{','A','4','5','C','2','5','4','E','-','D','F','1','C','-','4','E','F','D',
+    '-','8','0','2','0','-','6','7','D','1','4','6','A','8','5','0','E','0','}',
+    '\','0','0','1','7'
+};
+
 static const WCHAR devpropkey_device_ispresentW[] =
 {
     'P','r','o','p','e','r','t','i','e','s',
@@ -1237,6 +1245,15 @@ static void add_gpu( const struct gdi_gpu *gpu, void *param )
         NtClose( subkey );
     }

+    if (gpu->vendor_id && gpu->device_id)
+    {
+        if ((subkey = reg_create_key( hkey, devpkey_device_bus_number,
+                                      sizeof(devpkey_device_bus_number), 0, NULL )))
+            set_reg_value( subkey, NULL, 0xffff0000 | DEVPROP_TYPE_UINT32,
+                           &gpu_index, sizeof(gpu_index) );
+        NtClose( subkey );
+    }
+
     desc = gpu->name;
     if (!desc[0]) desc = wine_adapterW;
     set_reg_value( hkey, device_descW, REG_SZ, desc, (lstrlenW( desc ) + 1) * sizeof(WCHAR) );