Device ID

Device implementations MUST declare a unique identification integer called a Device ID. Devices sharing an ID are assumed to be the same and share the same Device Datasheet. Device IDs are 32-bit integers with the following format:

Reserved(8-bit).Company(8-bit).Device(16-bit)

• Reserved: Reserved for future specification revision. Currently ignored.

• Company: Any person, lab, institute, informal group, or company can communicate with Open Ephys in order to to obtain a unique 8-bit “Company” value, and thus be included in the automatic listings of existing ONI API implementations. Open Ephys is 0x00.

• Device: 16-bit Device ID. This number identifies not only the type of data produced or consumed by a device, but also a particular implementation. For instance, the same sensor will have a unique Device ID for each digital module implementation that is used to communicate with it. This number can optionally be divided in two 8-bit values so long as the resulting 16-bit integer is unique within a particular “Company” (there is no need for unary or monotonic increments when new devices are introduced).

Null Device ID

A special case is reserved for a device ID of 0.0.0. This identifies a Null Device.