From 8b53ed1d9b45649469d6662c27520088091910ca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Herv=C3=A9=20Poussineau?= <hpoussin@reactos.org>
Date: Tue, 17 Mar 2020 23:50:39 +0100
Subject: [PATCH] [ISAPNP] Implement IRP_MN_QUERY_PNP_DEVICE_STATE for
 ReadDataPort

---
 drivers/bus/isapnp/pdo.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/bus/isapnp/pdo.c b/drivers/bus/isapnp/pdo.c
index f0481119758..a75b4d32ed7 100644
--- a/drivers/bus/isapnp/pdo.c
+++ b/drivers/bus/isapnp/pdo.c
@@ -75,6 +75,17 @@ IsaPdoQueryCapabilities(
     return STATUS_SUCCESS;
 }
 
+NTSTATUS
+NTAPI
+IsaPdoQueryPnpDeviceState(
+  IN PISAPNP_PDO_EXTENSION PdoExt,
+  IN PIRP Irp,
+  IN PIO_STACK_LOCATION IrpSp)
+{
+    Irp->IoStatus.Information |= PNP_DEVICE_NOT_DISABLEABLE;
+    return STATUS_SUCCESS;
+}
+
 NTSTATUS
 NTAPI
 IsaPdoQueryId(
@@ -298,6 +309,11 @@ IsaPdoPnp(
             Status = IsaPdoQueryCapabilities(PdoExt, Irp, IrpSp);
             break;
 
+        case IRP_MN_QUERY_PNP_DEVICE_STATE:
+            if (PdoExt->Common.Self == PdoExt->FdoExt->DataPortPdo)
+                Status = IsaPdoQueryPnpDeviceState(PdoExt, Irp, IrpSp);
+            break;
+
         case IRP_MN_QUERY_RESOURCES:
             if (PdoExt->Common.Self == PdoExt->FdoExt->DataPortPdo)
                 Status = IsaPdoQueryResources(PdoExt, Irp, IrpSp);