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fills the buffer on a device with the values vals.
fills the buffer associated with the parameter param with the values vals.
fills the buffers associated with the parami with the corresponding values valsi .
- A device can be specified either by a DeviceObject or by a string representing a device class.
- DeviceWriteBuffer is a blocking function; when called, it communicates with the device and does not return until it has finished writing data.
- DeviceWriteBuffer[device,vals] returns vals, even if for some reason the write operation fails.