Big Plug-and-Play patch for ReactOS:
- Install drivers for devices at first boot
- Remove now useless entries in hivesys.inf
At the moment, driver installation only uses .inf files in ReactOS\Inf directory, and the needed files have to be in ReactOS\Inf or their final location (ReactOS\system32 or ReactOS\system32\drivers) + the user can't provide a custom driver
Plug-and-Plays devices are only USB controllers (OHCI and UHCI) and serial ports now.

Modified: trunk/reactos/bootdata/hivesys.inf
Modified: trunk/reactos/ntoskrnl/io/driver.c
Modified: trunk/reactos/services/umpnpmgr/umpnpmgr.c

--- trunk/reactos/bootdata/hivesys.inf	2005-10-14 18:14:19 UTC (rev 18447)
+++ trunk/reactos/bootdata/hivesys.inf	2005-10-14 18:24:19 UTC (rev 18448)
@@ -594,47 +594,6 @@

 HKLM,"SYSTEM\CurrentControlSet\Enum\Root\PCI\0000","ClassGUID",0x00000000,"{4D36E966-E325-11CE-BFC1-08002BE10318}"
 HKLM,"SYSTEM\CurrentControlSet\Enum\Root\PCI\0000","ParentIdPrefix",0x0000000,"0000"
 

-;USB UHCI Driver
-HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","Type",0x00010001,0x00000001
-HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","ErrorControl",0x00010001,0x00000001
-HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","Start",0x00010001,0x00000003
-HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","Group",0x00000000,"Base"
-HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","ImagePath",0x00020000,"System32\DRIVERS\usbuhci.sys"
-HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","Tag",0x00010001,0x0000000f
-HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci","DisplayName",0x00000000,"ReactOS USB UHCI controller miniport driver"
-;hard coded values for VMWARE
-HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci\Enum","0",0x00000000,"PCI\VEN_8086&DEV_7112&SUBSYS_197615AD&REV_00\0000"
-HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci\Enum","Count",0x00010001,0x00000001
-HKLM,"SYSTEM\CurrentControlSet\Services\usbuhci\Enum","NextInstance",0x00010001,0x00000001
-HKLM,"SYSTEM\CurrentControlSet\Enum\PCI\VEN_8086&DEV_7112&SUBSYS_197615AD&REV_00\0000","Service",0x0000000,"usbuhci"
-HKLM,"SYSTEM\CurrentControlSet\Enum\PCI\VEN_8086&DEV_7112&SUBSYS_197615AD&REV_00\0000","ParentIdPrefix",0x0000000,"0000"
-
-;USB OHCI Driver (Cromwell), especially the same name as windows OHCI miniport
-HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","Type",0x00010001,0x00000001
-HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","ErrorControl",0x00010001,0x00000001
-HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","Start",0x00010001,0x00000003
-HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","Group",0x00000000,"Base"
-HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","ImagePath",0x00020000,"System32\drivers\usbohci.sys"
-HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","Tag",0x00010001,0x0000000f
-HKLM,"SYSTEM\CurrentControlSet\Services\usbohci","DisplayName",0x00000000,"ReactOS USB OHCI cromwell-type driver"
-;hard coded values for Virtual PC 6/7 (Mac)
-HKLM,"SYSTEM\CurrentControlSet\Services\usbohci\Enum","0",0x00000000,"PCI\VEN_2955&DEV_6E61&SUBSYS_6E612955&REV_11\0000"
-HKLM,"SYSTEM\CurrentControlSet\Services\usbohci\Enum","Count",0x00010001,0x00000001
-HKLM,"SYSTEM\CurrentControlSet\Services\usbohci\Enum","NextInstance",0x00010001,0x00000001
-HKLM,"SYSTEM\CurrentControlSet\Enum\PCI\VEN_2955&DEV_6E61&SUBSYS_6E612955&REV_11\0000","Service",0x0000000,"usbohci"
-
-;USB Hub driver
-HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","Type",0x00010001,0x00000001
-HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","ErrorControl",0x00010001,0x00000001
-HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","Start",0x00010001,0x00000003
-HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","Group",0x00000000,"Base"
-HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","ImagePath",0x00020000,"System32\drivers\usbhub.sys"
-HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","Tag",0x00010001,0x00000011
-HKLM,"SYSTEM\CurrentControlSet\Services\usbhub","DisplayName",0x00000000,"ReactOS USB HUB cromwell-type driver"
-;hard coded values
-HKLM,"SYSTEM\CurrentControlSet\Enum\USB\ROOT_HUB\0000","Service",0x0000000,"usbhub"
-HKLM,"SYSTEM\CurrentControlSet\Enum\USB\ROOT_HUB20\0000","Service",0x0000000,"usbhub"
-

 ; ReactOS PCNet NIC driver 
 ; To use the AMD supplied driver change the driver name to pcntn5m.sys
 ;
@@ -699,23 +658,12 @@

 HKLM,"SYSTEM\CurrentControlSet\Services\Null","Start",0x00010001,0x00000001
 HKLM,"SYSTEM\CurrentControlSet\Services\Null","Type",0x00010001,0x00000001
 

-; Serial device driver
-HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0501\1","ClassGUID",0x00000000,"{4D36E978-E325-11CE-BFC1-08002BE10318}"
-HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0501\1","Service",0x00000000,"serial"
-HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0501\1","UpperFilters",0x00010000,"serenum"
-HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0501\2","ClassGUID",0x00000000,"{4D36E978-E325-11CE-BFC1-08002BE10318}"
-HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0501\2","Service",0x00000000,"serial"
-HKLM,"SYSTEM\CurrentControlSet\Enum\ACPI\PNP0501\2","UpperFilters",0x00010000,"serenum"
-

 ; Packet driver
 HKLM,"SYSTEM\CurrentControlSet\Services\Packet","ErrorControl",0x00010001,0x00000001
 HKLM,"SYSTEM\CurrentControlSet\Services\Packet","Group",0x00000000,"PNP_TDI"
 HKLM,"SYSTEM\CurrentControlSet\Services\Packet","ImagePath",0x00020000,"system32\drivers\packet.sys"
 HKLM,"SYSTEM\CurrentControlSet\Services\Packet","Start",0x00010001,0x00000004
 HKLM,"SYSTEM\CurrentControlSet\Services\Packet","Type",0x00010001,0x00000001

-; NOTE: These settings should be added by the network setup
-HKLM,"SYSTEM\CurrentControlSet\Services\Packet\Linkage","Bind",0x00010000,"\Device\Ne20001"
-HKLM,"SYSTEM\CurrentControlSet\Services\Packet\Linkage","Export",0x00010000,"\Device\packet"

 
 ; Plug and Play manager
 HKLM,"SYSTEM\CurrentControlSet\Services\PlugPlay","ErrorControl",0x00010001,0x00000000
@@ -737,16 +685,6 @@

 HKLM,"SYSTEM\CurrentControlSet\Services\Scsiport","Start",0x00010001,0x00000000
 HKLM,"SYSTEM\CurrentControlSet\Services\Scsiport","Type",0x00010001,0x00000001
 

-; Serial mouse driver
-HKLM,"SYSTEM\CurrentControlSet\Services\Sermouse","ErrorControl",0x00010001,0x00000000
-HKLM,"SYSTEM\CurrentControlSet\Services\Sermouse","Group",0x00000000,"Pointer Port"
-HKLM,"SYSTEM\CurrentControlSet\Services\Sermouse","ImagePath",0x00020000,"system32\drivers\sermouse.sys"
-HKLM,"SYSTEM\CurrentControlSet\Services\Sermouse","Start",0x00010001,0x00000003
-HKLM,"SYSTEM\CurrentControlSet\Services\Sermouse","Type",0x00010001,0x00000001
-;hard coded values for some serial mice
-HKLM,"SYSTEM\CurrentControlSet\Enum\Serenum\Mouse\0000","Service",0x0000000,"sermouse"
-HKLM,"SYSTEM\CurrentControlSet\Enum\Serenum\Mouse\0000","ClassGUID",0x0000000,"{4D36E96F-E325-11CE-BFC1-08002BE10318}"
-

 ; TCP/IP driver
 HKLM,"SYSTEM\CurrentControlSet\Services\Tcpip","ErrorControl",0x00010001,0x00000001
 HKLM,"SYSTEM\CurrentControlSet\Services\Tcpip","Group",0x00000000,"PNP_TDI"

--- trunk/reactos/ntoskrnl/io/driver.c	2005-10-14 18:14:19 UTC (rev 18447)
+++ trunk/reactos/ntoskrnl/io/driver.c	2005-10-14 18:24:19 UTC (rev 18448)
@@ -529,6 +529,9 @@

                break;
             }
          }

+         if (!NT_SUCCESS(Status))
+            /* Try to load it. It may just have been installed by PnP manager */
+            Status = LdrLoadModule(&ServiceImagePath, ModuleObject);

       }
 
       /*

--- trunk/reactos/services/umpnpmgr/umpnpmgr.c	2005-10-14 18:14:19 UTC (rev 18447)
+++ trunk/reactos/services/umpnpmgr/umpnpmgr.c	2005-10-14 18:24:19 UTC (rev 18448)
@@ -22,6 +22,7 @@

  * FILE:             services/umpnpmgr/umpnpmgr.c
  * PURPOSE:          User-mode Plug and Play manager
  * PROGRAMMER:       Eric Kohl

+ *                   HervÚ Poussineau (hpoussin@reactos.org)

  */
 
 /* INCLUDES *****************************************************************/
@@ -874,7 +875,52 @@

     return ret;
 }
 

+typedef BOOL (*PDEV_INSTALL_W)(HWND, HINSTANCE, LPCWSTR, INT);

+static BOOL
+InstallDevice(PCWSTR DeviceInstance)
+{
+    PLUGPLAY_CONTROL_STATUS_DATA PlugPlayData;
+    HMODULE hNewDev = NULL;
+    PDEV_INSTALL_W DevInstallW;
+    NTSTATUS Status;
+    BOOL DeviceInstalled = FALSE;
+
+    RtlInitUnicodeString(&PlugPlayData.DeviceInstance,
+                         DeviceInstance);
+    PlugPlayData.Operation = 0; /* Get status */
+
+    /* Get device status */
+    Status = NtPlugPlayControl(PlugPlayControlDeviceStatus,
+                               (PVOID)&PlugPlayData,
+                               sizeof(PLUGPLAY_CONTROL_STATUS_DATA));
+    if (!NT_SUCCESS(Status))
+        return FALSE;
+
+    if (PlugPlayData.DeviceStatus & DNF_STARTED || PlugPlayData.DeviceStatus & DNF_START_FAILED)
+        /* Device is already started, or disabled due to some problem. Don't install it */
+        return TRUE;
+
+    /* Install device */
+    SetEnvironmentVariable(L"USERPROFILE", L"."); /* FIXME: why is it needed? */
+    hNewDev = LoadLibraryW(L"newdev.dll");
+    if (!hNewDev)
+        goto cleanup;
+    DevInstallW = (PDEV_INSTALL_W)GetProcAddress(hNewDev, (LPCSTR)"DevInstallW");
+    if (!DevInstallW)
+        goto cleanup;
+    if (!DevInstallW(NULL, NULL, DeviceInstance, SW_SHOWNOACTIVATE))
+        goto cleanup;
+
+    DeviceInstalled = TRUE;
+
+cleanup:
+    if (hNewDev != NULL)
+        FreeLibrary(hNewDev);
+
+    return DeviceInstalled;
+}
+

 static DWORD WINAPI
 PnpEventThread(LPVOID lpParameter)
 {
@@ -915,6 +961,7 @@

         if (UuidEqual(&PnpEvent->EventGuid, (UUID*)&GUID_DEVICE_ARRIVAL, &RpcStatus))
         {
             DPRINT("Device arrival event: %S\n", PnpEvent->TargetDevice.DeviceIds);

+            InstallDevice(PnpEvent->TargetDevice.DeviceIds);

         }
         else
         {