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Correctly support USB hubs
svn path=/trunk/; revision=21908
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parent
f53dbb4e60
commit
1d77bcb312
1 changed files with 22 additions and 1 deletions
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@ -29,6 +29,28 @@ UsbhubDeviceControlPdo(
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switch (Stack->Parameters.DeviceIoControl.IoControlCode)
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{
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case IOCTL_INTERNAL_USB_GET_ROOT_USB_DEVICE:
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{
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PHUB_DEVICE_EXTENSION DeviceExtension;
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DPRINT("Usbhub: IOCTL_INTERNAL_USB_GET_ROOT_USB_DEVICE\n");
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if (Irp->AssociatedIrp.SystemBuffer == NULL
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|| Stack->Parameters.DeviceIoControl.OutputBufferLength != sizeof(PVOID))
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{
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Status = STATUS_INVALID_PARAMETER;
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}
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else
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{
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PVOID* pHubPointer;
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DeviceExtension = (PHUB_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
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pHubPointer = (PVOID*)Irp->AssociatedIrp.SystemBuffer;
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*pHubPointer = DeviceExtension->dev;
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Information = sizeof(PVOID);
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Status = STATUS_SUCCESS;
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}
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break;
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}
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default:
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{
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DPRINT1("Usbhub: Unknown IOCTL code 0x%lx\n", Stack->Parameters.DeviceIoControl.IoControlCode);
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@ -52,7 +74,6 @@ UsbhubPdoStartDevice(
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NTSTATUS Status;
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DeviceExtension = (PHUB_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
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DbgBreakPoint();
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/* Register and activate device interface */
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Status = IoRegisterDeviceInterface(
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