NI-DAQmx .NET Framework 4.0 API Reference

DIDataTransferMechanism Enumeration

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Specifies the data transfer mode for the device.

Namespace: NationalInstruments.DAQmx
Assembly: NationalInstruments.DAQmx (in NationalInstruments.DAQmx.dll) Version: 20.7.40.49302

public enum DIDataTransferMechanism

Public Enumeration DIDataTransferMechanism

Member name	Value	Description
Dma	10054	Direct Memory Access. Data transfers take place independently from the application.
Interrupts	10204	Data transfers take place independently from the application. Using interrupts increases CPU usage because the CPU must service interrupt requests. Typically, you should use interrupts if the device is out of DMA channels.
ProgrammedIO	10264	Data transfers take place when you call reading from the task or writing to the task.
UsbBulk	12590	Data transfers take place independently from the application using a USB bulk pipe.

Specifies the data transfer mode for the device. Use this enumeration to get or set the value of DataTransferMechanism.