https://git.reactos.org/?p=reactos.git;a=commitdiff;h=de316477b9aaaf830d1e9802bc5fec1800140461
commit de316477b9aaaf830d1e9802bc5fec1800140461 Author: Eric Kohl <[email protected]> AuthorDate: Wed Apr 27 21:52:21 2022 +0200 Commit: Eric Kohl <[email protected]> CommitDate: Wed Apr 27 21:52:21 2022 +0200 [NTOS:PNP] IopInitializeDevice: Create a device, allocate a device node and attach it to the root node --- ntoskrnl/io/pnpmgr/plugplay.c | 34 ++++++++++++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) diff --git a/ntoskrnl/io/pnpmgr/plugplay.c b/ntoskrnl/io/pnpmgr/plugplay.c index c1f108da332..46093b252b5 100644 --- a/ntoskrnl/io/pnpmgr/plugplay.c +++ b/ntoskrnl/io/pnpmgr/plugplay.c @@ -194,6 +194,7 @@ IopInitializeDevice( { UNICODE_STRING DeviceInstance; PDEVICE_OBJECT DeviceObject; + PDEVICE_NODE DeviceNode; NTSTATUS Status = STATUS_SUCCESS; DPRINT("IopInitializeDevice(%p)\n", ControlData); @@ -210,7 +211,7 @@ IopInitializeDevice( DeviceObject = IopGetDeviceObjectFromDeviceInstance(&DeviceInstance); if (DeviceInstance.Buffer != NULL) { - DPRINT("Device %wZ already exists!\n", &DeviceInstance); + DPRINT1("Device %wZ already exists!\n", &DeviceInstance); Status = STATUS_SUCCESS; goto done; } @@ -219,7 +220,36 @@ IopInitializeDevice( DPRINT("Device %wZ does not exist!\n", &DeviceInstance); - /* FIXME: Create a device node for the device instan*/ + /* Create a device node for the device instance */ + Status = IoCreateDevice(IopRootDriverObject, + 0, + NULL, + FILE_DEVICE_CONTROLLER, + FILE_AUTOGENERATED_DEVICE_NAME, + FALSE, + &DeviceObject); + if (!NT_SUCCESS(Status)) + { + DPRINT1("IoCreateDevice() failed (Status 0x%08lx)\n", Status); + goto done; + } + + /* Allocate a new device node */ + DeviceNode = PipAllocateDeviceNode(DeviceObject); + if (DeviceNode == NULL) + { + DPRINT1("Failed to allocate a device node!\n"); + IoDeleteDevice(DeviceObject); + Status = STATUS_INSUFFICIENT_RESOURCES; + goto done; + } + + /* Set the device instance of the device node */ + RtlDuplicateUnicodeString(0, &DeviceInstance, &DeviceNode->InstancePath); + + + /* Insert as a root enumerated device node */ + PiInsertDevNode(DeviceNode, IopRootDeviceNode); done: ExFreePool(DeviceInstance.Buffer);
