[PATCH v2 3/6] winebus: Handle IRP_MN_QUERY_DEVICE_TEXT.

[Connor McAdams]

From: Connor McAdams

Signed-off-by: Connor McAdams 
---
 dlls/winebus.sys/main.c | 45 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/dlls/winebus.sys/main.c b/dlls/winebus.sys/main.c
index ba8603204d4..8315112fa25 100644
--- a/dlls/winebus.sys/main.c
+++ b/dlls/winebus.sys/main.c
@@ -264,6 +264,23 @@ static WCHAR *get_compatible_ids(DEVICE_OBJECT *device)
     return dst;
 }

+static WCHAR *get_device_text(DEVICE_OBJECT *device)
+{
+    struct device_extension *ext = device->DeviceExtension;
+    const WCHAR *src = L"WineBus Device";
+    DWORD size;
+    WCHAR *dst;
+
+    if (ext->desc.product[0]) src = ext->desc.product;
+
+    size = (wcslen(src) + 1) * sizeof(WCHAR);
+    if ((dst = ExAllocatePool( PagedPool, size )))
+        memcpy( dst, src, size );
+
+    TRACE("Returning %s.\n", debugstr_w(dst));
+    return dst;
+}
+
 static IRP *pop_pending_read(struct device_extension *ext)
 {
     IRP *pending;
@@ -700,6 +717,30 @@ static NTSTATUS handle_IRP_MN_QUERY_ID(DEVICE_OBJECT *device, IRP *irp)
     return status;
 }

+static NTSTATUS handle_IRP_MN_QUERY_DEVICE_TEXT(DEVICE_OBJECT *device, IRP *irp)
+{
+    IO_STACK_LOCATION *irpsp = IoGetCurrentIrpStackLocation( irp );
+    DEVICE_TEXT_TYPE type = irpsp->Parameters.QueryDeviceText.DeviceTextType;
+    NTSTATUS status = irp->IoStatus.Status;
+
+    TRACE("(%p, %p)\n", device, irp);
+
+    switch (type)
+    {
+        case DeviceTextDescription:
+            TRACE("DeviceTextDescription.\n");
+            irp->IoStatus.Information = (ULONG_PTR)get_device_text(device);
+            break;
+
+        default:
+            WARN("Unhandled type %08x.\n", type);
+            return status;
+    }
+
+    status = irp->IoStatus.Information ? STATUS_SUCCESS : STATUS_NO_MEMORY;
+    return status;
+}
+
 static void mouse_device_create(void)
 {
     struct device_create_params params = {{0}};
@@ -1224,6 +1265,10 @@ static NTSTATUS pdo_pnp_dispatch(DEVICE_OBJECT *device, IRP *irp)
             status = handle_IRP_MN_QUERY_ID(device, irp);
             break;

+        case IRP_MN_QUERY_DEVICE_TEXT:
+            status = handle_IRP_MN_QUERY_DEVICE_TEXT(device, irp);
+            break;
+
         case IRP_MN_QUERY_CAPABILITIES:
             status = STATUS_SUCCESS;
             break;